A petrochemical workwear flame retardant performance detection system

Abstract

The application relates to the technical field of petrochemical workwear flame-retardant performance detection, and specifically discloses a petrochemical workwear flame-retardant performance detection system, which comprises a base, a mounting frame arranged on the base, a shell arranged on the base, and a control panel arranged on the shell; an analog assembly, a driving element, an elastic connecting element and a rolling roller, the mounting disc and the driving element are both mounted on the mounting frame, the elastic connecting element is mounted on the mounting frame, the rolling roller is arranged on the elastic connecting element, the rolling roller is in movable abutment with the mounting disc, the driving element drives the elastic connecting element to reciprocatingly swing on the mounting frame, so that the rolling roller repeatedly rolls the workwear sample fixed on the mounting disc; a combustion assembly, a sliding frame and a spray gun used for burning the workwear sample; and a detection assembly, a visual camera, the visual camera can detect the burning condition of the workwear sample in real time. The application has the effects of simulating complex and changeable use environments and improving the accuracy and comprehensiveness of the detection system.

Description

Technical Field

[0001] This application relates to the field of flame retardant performance testing technology for petrochemical work clothes, and in particular to a flame retardant performance testing system for petrochemical work clothes. Background Technology

[0002] Currently, in high-risk industries such as petrochemicals, natural gas extraction and refining, workers are frequently exposed to high temperatures, flames, or flammable and explosive environments. Therefore, the flame-retardant properties of work clothes are crucial for ensuring personnel safety. According to international standard ISO11612 and national standard GB8965.1-2020 "Protective Clothing - Flame Retardant Clothing", work clothes in the petrochemical industry must pass rigorous flame-retardant performance tests, including key indicators such as afterflame time, smoldering time, and damage length.

[0003] Common flame retardant performance testing methods mainly include vertical burning tests, 45-degree tilt burning tests, and limiting oxygen index tests. These methods all employ standardized experimental environments, testing samples with specific combustion sources (such as open flames or heat radiation), and evaluating flame retardant performance based on post-combustion characteristics. For example, Chinese patent CN219915527U proposes a flame retardant performance testing device for clothing fabrics. This device uses a motor to drive a threaded rod and threaded sleeve to adjust the distance between support plates, and a second threaded rod controls the upper and lower clamps to hold and fix the fabric. After adjusting the height of the test platform using a telescopic cylinder, the fabric is ignited by an ignition gun, and a jet pipe supplies combustion gas to maintain combustion. Simultaneously, a powder pump sprays extinguishing powder through a powder nozzle. Its core lies in precisely clamping the fabric through a mechanical structure and automatically controlling the combustion and extinguishing processes, thereby ensuring test stability and accuracy.

[0004] However, most current flame retardant performance testing systems are based on standard laboratory environments and cannot simulate the complex and varied working conditions in the petrochemical industry. Since work clothes need to be used repeatedly within a certain period, experimental conditions can only obtain theoretical data, which is insufficient to reflect real-world usage. Furthermore, repeated washing, wear and tear, and oil contamination during daily use can lead to a decline in flame retardant performance, causing discrepancies between test results and actual applications, making it impossible to accurately assess the lifespan and safety of work clothes in real workplaces. Summary of the Invention

[0005] This application provides a flame retardant performance testing system for petrochemical work clothes. The testing system can simulate the complex and varied usage environment of petrochemical work clothes and set different combustion modes to more comprehensively evaluate the flame retardant performance of petrochemical work clothes.

[0006] The flame retardant performance testing system for petrochemical work clothes provided in this application adopts the following technical solution: A flame retardant performance testing system for petrochemical work clothes, comprising: A base, on which a mounting bracket is fixedly mounted, and a housing is provided on the base, with a control panel provided on the housing; The simulation component includes a mounting plate, a pressing roller, an elastic connector, and a driving component. A workwear sample is fixed on the mounting plate, which is rotatably mounted on a mounting frame. The elastic connector is rotatably mounted on the mounting frame. The pressing roller is mounted on the elastic connector and movably abuts against the mounting plate. The driving component is mounted on a base and is drively connected to the elastic connector. The driving component drives the elastic connector to reciprocate on the mounting frame, thereby causing the pressing roller to repeatedly press the workwear sample fixed on the mounting plate. The combustion assembly includes a sliding frame and a spray gun for burning workwear samples. The sliding frame is fixed to the housing, and a slide block is slidably disposed on the sliding frame. The spray gun is disposed on the slide block and faces the mounting plate. The detection component includes a vision camera mounted on the housing, which can detect the burning status of the workwear sample in real time.

[0007] By adopting the above technical solution, the simulation component can dynamically mechanically wear down the workwear sample (such as crushing and abrasion), simulating the effects of prolonged wear, washing, and oil contamination on flame retardant performance. This makes the test results closer to the actual use of the workwear. Furthermore, the combustion component utilizes a spray gun and sliding frame to precisely control the position and trajectory of the combustion source, ensuring the sample is subjected to a uniform and stable flame. Unlike traditional fixed combustion tests, this testing system can dynamically mechanically wear down the workwear sample according to experimental needs, making the flame retardant performance testing more flexible and accurate, providing a flame retardant performance assessment closer to actual use. Simultaneously, the visual camera can record the combustion process of the sample in real time, including flame propagation, damage morphology, and afterflame time, enabling automated analysis, reducing human error, and improving the accuracy and reliability of the data.

[0008] Optionally, the combustion assembly further includes a mode switching component, which includes a switching plate, a return spring, and an electromagnet. The spray gun is equipped with a buffer tube, one end of which has a flame head. The flame head has an igniter and a mounting portion. The igniter is electrically connected to the control panel. The mounting portion has a receiving cavity, and the switching plate is slidably disposed within the receiving cavity. The switching plate has a first vent and a second vent along its length. Multiple sets of isolation valves are embedded in the second vent, and these isolation valves are openable and closable within the second vent. The return spring is positioned... At one end of the switching plate along its length, the electromagnet is located at the other end of the switching plate. The return spring is disposed within the receiving cavity, with one end of the return spring fixedly connected to the inner wall of the receiving cavity and the other end of the switching plate. The electromagnet is fixedly mounted on the mounting portion and electrically connected to the control panel. The electromagnet can act on the switching plate. When the electromagnet is activated, it can attract one end of the switching plate. The flame head communicates with the buffer tube through the second vent hole. When the electromagnet is deactivated, the flame head communicates with the buffer tube through the first vent hole.

[0009] By adopting the above technical solution, the electromagnet's adsorption or release action is used to control the sliding of the switching plate within the accommodating cavity, allowing either the first or second vent to connect to the buffer tube. Simultaneously, multiple sets of isolation valves are embedded in the second vent. These valves control the flow of combustion air, thereby adjusting the combustion mode of the spray gun. That is, when the electromagnet is energized or de-energized, the spray gun can connect to different airflow channels to simulate different types of combustion scenarios (such as open flame, slow combustion, and deflagration). This allows for flame retardant testing with different standards to adapt to different application environments of work clothes, enhancing the versatility of the testing system. Furthermore, the electromagnet and switching plate setup makes the combustion mode more controllable, reduces manual intervention, and improves experimental efficiency and test consistency.

[0010] Optionally, the simulation component further includes a medium coating component, which includes a storage tank, an injection pump, and a storage box. The storage tank is fixed on the base, the storage box is fixed on the mounting frame, and the injection pump is mounted on the base plate. The suction end of the injection pump is connected to the storage tank, and the discharge end of the injection pump is connected to the storage box. The storage box is filled with environmental liquid medium, and the storage box has an outlet that is connected to the storage box. A ball bearing is provided on the outlet, and the ball bearing is rotatably embedded in the outlet. When the driving component can drive the elastic connecting component to reciprocate on the mounting frame, the rolling roller can selectively abut against the mounting plate or the storage box. When the rolling roller abuts against the storage box, the rolling roller slides over the ball bearing, thereby coating the environmental liquid medium in the storage box onto the rolling roller through the ball bearing.

[0011] By adopting the above technical solution, the system uses a specially designed medium-coated component to simulate the contamination of work clothes in a complex environment, thereby improving the realism of the test. Considering that petrochemical work clothes are often contaminated by oil, chemical solvents, and moisture during use, which can affect their flame-retardant performance, traditional flame-retardant tests are usually conducted on clean, uncontaminated samples. Furthermore, traditional flame-retardant testing typically focuses only on the effect of flame, neglecting changes in flame-retardant performance caused by mechanical damage such as friction and compression during use. This leads to discrepancies between experimental data and actual applications. This testing system, combined with a rolling roller, subjects the work clothes sample to a certain degree of mechanical wear before the combustion test. Simultaneously, an environmental liquid medium is coated during the rolling process, ensuring full contact between contaminants and fibers. This more realistically simulates the aging process of work clothes, improves the ability to assess the impact of environmental factors on flame-retardant performance, and provides a scientific basis for the replacement cycle of safety protective clothing.

[0012] Optionally, the rolling roller includes a rotating shaft, a rolling sleeve, and a positioning ring. One end of the rotating shaft is rotatably mounted on the elastic connector. Two sets of elastic connectors are provided, and the two sets of elastic connectors are symmetrically arranged along the diameter direction of the mounting plate. The rotating shaft is supported on the mounting plate through the two sets of elastic connectors. The rolling sleeve is coaxially sleeved on the rotating shaft. Both ends of the rotating shaft are provided with external threads. The positioning ring is located at one end of the rotating shaft and is threadedly connected to the rotating shaft. Two sets of positioning rings are provided, and the two sets of positioning rings fix the rolling sleeve on the rotating shaft.

[0013] By adopting the above technical solution, the combination of a rotating shaft, a rolling sleeve, and a positioning ring allows the rolling roller to rotate freely, ensuring uniform mechanical wear on the workwear sample and improving the realism of the simulated wear. The threaded connection between the positioning ring and the rotating shaft ensures the rolling sleeve is reliably fixed to the shaft, preventing loosening and improving the stability and service life of the rolling roller. This design also facilitates the disassembly, replacement, and maintenance of the rolling roller. Rolling sleeves of different materials or surface textures can be used to meet different experimental needs, adapting to various wear simulation tests and improving the adaptability of the testing system. For example, rolling sleeves with different hardness or surface roughness can be used to simulate different types of physical wear (such as grit friction, wear caused by long-term wear, etc.), making the test more accurate.

[0014] Optionally, the elastic connector includes a connecting shaft, a connecting arm, and an elastic telescopic rod. The connecting shaft is rotatably mounted on the mounting frame. The connecting arm is fixed to one end of the connecting shaft. Two sets of connecting arms are provided, and the two sets of connecting arms are symmetrically arranged along the length direction of the connecting shaft. The fixed end of the elastic telescopic rod is fixed to the connecting arm. A connecting seat is provided on the telescopic end of the elastic telescopic rod. One end of the rotating shaft is rotatably connected to the connecting seat. Two sets of elastic telescopic rods are provided, and the two sets of elastic telescopic rods are symmetrically arranged along the width direction of the connecting arm.

[0015] By adopting the above technical solution, an elastic connector consisting of an elastic telescopic rod, a connecting shaft, and a connecting arm can be used to dynamically adjust the pressure of the rolling roller. During the rolling process, the angle can be adjusted slightly to adapt to workwear samples of different thicknesses, softness, and materials, ensuring a uniform and stable rolling process. At the same time, the elastic telescopic rod can provide appropriate cushioning during the rolling process, preventing violent impact when the rolling roller contacts the workwear sample, thereby reducing abnormal damage to the sample surface and ensuring that the test only evaluates the natural wear of the material itself. This structure effectively reduces test errors and improves the scientific nature of flame retardant performance evaluation.

[0016] Optionally, the detection component further includes a temperature sensor, which is embedded on the side of the mounting plate opposite to the rotating frame, and the temperature sensor is electrically connected to the control panel.

[0017] By adopting the above technical solution, a temperature sensor is embedded in the mounting plate to monitor the temperature change of the workwear sample in real time, providing quantitative data for flame retardant performance. Combined with data from a visual camera, multi-dimensional analysis of the combustion process is achieved, enhancing the scientific nature of the experiment and improving the accuracy of the test.

[0018] Optionally, a rotating frame is fixed on the mounting frame, and a rotating part is fixed at one end of the mounting plate. The rotating part is rotatably connected to the rotating frame. The mounting plate is rotatably mounted on the rotating frame via the rotating part, and the mounting plate is inclined on the rotating frame. An annular cover is provided on the mounting plate. A positioning outer edge is fixed at the end of the mounting plate where the rotating part is located. The positioning outer edge forms a first stepped surface with the mounting plate. An enlarged diameter part is provided on the inner wall of the annular cover. A second stepped surface is formed between the enlarged diameter part and the inner wall of the annular cover. The annular cover is threadedly connected to the positioning outer edge. When the workwear sample is laid on the mounting plate, the annular cover is fastened to the mounting plate, and the first stepped surface abuts against the second stepped surface, thereby fixing the workwear sample on the mounting plate.

[0019] By adopting the above technical solution, the combination design of the annular cover and the positioning outer edge ensures that the work clothes sample is fixed and stable during the test, avoiding displacement caused by burning or mechanical wear, which would affect the test results. At the same time, the threaded connection method makes sample replacement convenient and improves the operability of the experiment.

[0020] Optionally, the driving component includes a motor, a turntable, and a lever. A transmission rod is provided between the two sets of connecting arms. One end of the transmission rod is fixedly connected to a set of adjacent connecting arms. The motor is fixed on the mounting bracket and electrically connected to the control panel. The turntable is fixed on the output end of the motor. One end of the lever is rotatably connected to the transmission rod, and the other end of the lever is rotatably connected to the turntable. The end of the lever connected to the turntable is away from the rotation center of the turntable.

[0021] By adopting the above technical solution and using a motor, turntable, and lever transmission structure, the stable operation of the compaction mechanism is ensured, and the reliability of mechanical loss simulation is improved.

[0022] Optionally, the rotating part is provided with a turning component, which includes an end face gear, a turning rod, and a cam. The end face gear is fixed on the rotating part, the turning rod is rotatably mounted on the rotating frame, and a torsion spring is provided between the turning rod and the rotating frame. The cam is fixed on the connecting shaft. One end of the turning rod is movably abutted against the cam, and the other end of the turning rod is inserted into the end face gear. When the connecting arm reciprocates on the mounting frame, the turning rod cyclically turns the end face gear, thereby causing the mounting plate to rotate on the rotating frame.

[0023] By adopting the above technical solution, and utilizing the combination of end face gear, rotating rod and cam, the mounting plate can rotate synchronously during the rolling process, ensuring that the workwear sample is subjected to more uniform wear and improving the reliability of the test.

[0024] Optionally, a filter assembly is also included, which includes an exhaust fan, an exhaust pipe, and a filter box. An exhaust port is provided on the housing, the exhaust fan is fixed inside the exhaust port, the filter box is disposed on one side of the housing, one end of the exhaust pipe is connected to the exhaust port, and the other end of the exhaust pipe extends into the filter box. The filter box can filter the smoke generated by the flame retardant performance testing of petrochemical work clothes.

[0025] By adopting the above technical solution, using an exhaust fan, exhaust pipe, and filter box, harmful fumes generated during combustion testing can be effectively filtered, reducing environmental pollution and improving experimental safety.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. The simulation components can dynamically subject the workwear samples to mechanical wear (such as crushing and abrasion), simulating the effects of prolonged wear, washing, and oil contamination on flame retardant performance. This makes the test results closer to the actual use of the workwear. The combustion components utilize a spray gun and sliding frame to precisely control the position and trajectory of the combustion source, ensuring the sample is subjected to a uniform and stable flame. Unlike traditional fixed combustion tests, this testing system can dynamically subject the workwear samples to mechanical wear according to experimental needs, making the flame retardant performance testing more flexible and accurate, providing a flame retardant performance assessment closer to actual use. Simultaneously, the included visual camera can record the combustion process of the sample in real time, including flame propagation, damage morphology, and afterflame time, enabling automated analysis, reducing human error, and improving the accuracy and reliability of the data. 2. By using a specially designed medium-coated component to simulate the contamination of work clothes in complex environments, the realism of the test is improved. Considering that petrochemical work clothes are contaminated by oil, chemical solvents, moisture, etc. during use, these factors may affect flame retardant performance. Traditional flame retardant tests are usually conducted on clean, uncontaminated samples, and traditional flame retardant tests usually only focus on the effect of flame, without considering the changes in flame retardant performance caused by mechanical damage such as friction and compression during use. This leads to a discrepancy between experimental data and actual application. This testing system, combined with a rolling roller, causes the work clothes sample to undergo a certain degree of mechanical wear before the combustion test. During the rolling process, an environmental liquid medium is simultaneously coated to ensure that the contaminants are in full contact with the fibers. This more realistically simulates the aging process of work clothes, improves the ability to assess the impact of environmental factors on flame retardant performance, and provides a scientific basis for the replacement cycle of work clothes. 3. By utilizing the attraction or release effect of the electromagnet, the switching plate is controlled to slide within the receiving cavity, allowing either the first or second vent to connect to the buffer tube. Simultaneously, multiple sets of isolation valves are embedded in the second vent. These valves control the flow of combustion air, thereby adjusting the combustion mode of the spray gun. That is, when the electromagnet is energized or de-energized, the spray gun can connect to different airflow channels, simulating different types of combustion scenarios (such as open flame, slow combustion, and deflagration). This allows for flame retardant testing with different standards to adapt to different application environments of work clothes, enhancing the versatility of the testing system. Furthermore, the electromagnet and switching plate configuration makes the combustion mode more controllable, reducing manual intervention and improving experimental efficiency and test consistency. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the flame retardant performance testing system in the embodiments of this application.

[0028] Figure 2 This is a schematic diagram of the overall structure of the simulation component in the embodiments of this application.

[0029] Figure 3 This is an exploded view of the installation disk in an embodiment of this application.

[0030] Figure 4 It is along Figure 2 Enlarged schematic diagram of part B.

[0031] Figure 5 This is a half-section structural diagram of the flame retardant performance testing system in the embodiments of this application.

[0032] Figure 6 This is a schematic diagram of the overall structure of the mode switching component in the embodiments of this application.

[0033] Figure 7 This is a half-section diagram of the cache tube in an embodiment of this application.

[0034] Reference numerals: 1. Base; 11. Mounting bracket; 111. Support plate; 12. Rotating bracket; 2. Housing; 21. Control panel; 22. Exhaust port; 3. Simulation components; 31. Mounting plate; 311. Rotating part; 312. Positioning outer edge; 32. Roller; 321. Rotating shaft; 322. Rolling sleeve; 323. Positioning ring; 33. Elastic connector; 331. Connecting shaft; 332. Connecting arm; 333. Elastic telescopic rod; 334. Connecting seat; 335. Transmission rod; 34. Drive component; 341. Motor; 342. Turntable; 343. Lever; 35. Medium coating component; 351. Liquid storage tank; 352. Injection pump; 353. Liquid storage box; 3531. Liquid outlet; 354. Ball bearing; 36. Annular cover; 361. Expanded diameter part; 37. Rotating component; 371. End face gear; 372. Rotating lever; 373. Cam; 374. Torsion spring; 4. Combustion assembly; 41. Sliding frame; 42. Spray gun; 421. Buffer tube; 422. Flame head; 423. Igniter; 424. Mounting part; 4241. Receiving cavity; 43. Slide block; 44. Mode switching component; 441. Switching plate; 4411. First vent; 4412. Second vent; 442. Return spring; 443. Electromagnet; 444. Isolation valve; 5. Detection components; 51. Vision camera; 52. Temperature sensor; 6. Filter assembly; 61. Exhaust fan; 62. Exhaust pipe; 63. Filter box. Detailed Implementation

[0035] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0036] This application discloses a flame retardant performance testing system for petrochemical work clothes.

[0037] Reference Figure 1 The petrochemical workwear flame retardant performance testing system includes a base 1, a shell 2, a simulation component 3, a combustion component 4, a filter component 6, and a testing component 5. The shell 2 is mounted on the base 1. The simulation component 3 and the combustion component 4 are both mounted on the base 1 and are located inside the shell 2. The combustion component 4 is located above the simulation component 3. The filter component 6 is located outside the shell 2 and on one side of the simulation component 3. The testing component 5 is located inside the shell 2.

[0038] The base 1 serves as the installation foundation for the entire petrochemical workwear flame retardant performance testing system. The shell 2 encloses the simulation component 3 and the combustion component 4, thus isolating the testing environment, reducing external interference, and protecting the main inspection equipment. The simulation component 3 can simulate the complex and varied working conditions in the petrochemical industry, including various wear and tear on petrochemical workwear during daily use and contamination by liquid media in the working environment, which may cause the flame retardancy of petrochemical workwear to decrease. The combustion component 4 can directly burn or deflagrate the workwear sample. The filter component 6 can extract and filter the fumes generated during the flame retardant testing process.

[0039] Reference Figure 1 In this embodiment, a mounting bracket 11 is fixedly mounted on the chassis. The mounting bracket 11 consists of two support plates 111 and is located on one side of the base 1 along its length. The housing 2 is mounted on the base 1 and is a rectangular box with one open side. The open side of the housing 2 is fixedly connected to the base 1. A control panel 21 and an inspection port are provided on the outer side of the housing 2. The control panel 21 can control the electrical components in the entire testing system and also has a data display area. The control panel 21 can display different testing data in the testing system in real time. An inspection door is provided on the inspection port. The inspection door is rotatably connected to the housing 2 via a hinge, and an observation window is provided on the inspection door for real-time observation of the internal condition of the housing 2.

[0040] A gas cylinder containing carbon dioxide is installed on the top of the housing 2. A gas delivery pipe is attached to the gas cylinder, with one end connected to the gas cylinder and the other end equipped with two sets of nozzles. Both sets of nozzles are mounted on the housing 2, with one set aimed at the upper half of the simulation component 3 and the other at the lower half. A solenoid valve is installed on the gas delivery pipe and electrically connected to the control panel 21. An emergency stop button is located on the control panel. This design ensures immediate fire suppression in case of an emergency fire during flame retardant testing.

[0041] Reference Figure 2 , Figure 3 and Figure 4 In this embodiment, the simulation component 3 includes a mounting plate 31, an annular cover 36, a rolling roller 32, an elastic connector 33, a rotating component 37, a driving component 34, and a medium coating component 35. A rotating frame 12 is fixedly mounted between two sets of support plates 111. The mounting plate 31 is circular, and a rotating part 311 is coaxially fixed at one end of the mounting plate 31. The rotating part 311 is rotatably connected to the rotating frame 12. The mounting plate 31 is rotatably mounted on the rotating frame 12 through the rotating part 311, and the mounting plate 31 is inclined on the rotating frame 12. There is a 45° angle between the end face of the mounting plate 31 and the base 1.

[0042] An annular cover 36 is mounted on a mounting plate 31. A positioning outer edge 312 is fixed at one end of the mounting plate 31 near the rotating part 311. The positioning outer edge 312 and the mounting plate 31 form a first stepped surface. An enlarged diameter part 361 is provided on the inner wall of the annular cover 36. A second stepped surface is formed between the enlarged diameter part 361 and the inner wall of the annular cover 36. The annular cover 36 is threadedly connected to the positioning outer edge 312. A tightening handle is also fixed on the outer peripheral wall of the annular cover 36 to facilitate the installation and removal of the annular cover 36 on the mounting plate 31.

[0043] Reference Figure 2 In this embodiment, two sets of elastic connectors 33 are provided, and the two sets of elastic connectors 33 are symmetrically arranged along the width direction of the base 1. Each elastic connector 33 includes a connecting shaft 331, a connecting arm 332, and an elastic telescopic rod 333. The rolling roller 32 includes a connecting seat 334, a rotating shaft 321, a rolling sleeve 322, and a positioning ring 323. The two ends of the connecting shaft 331 are respectively rotatably mounted on two sets of support plates 111, and a bearing is provided between the connecting shaft 331 and the support plate 111. The connecting shaft 331 is mounted on the base 1 through the two sets of support plates 111. The connecting arm 332 is fixedly connected to one end of the connecting shaft 331. Two sets of connecting arms 332 are provided, and the two sets of connecting arms 332 are symmetrically arranged along the length direction of the connecting shaft 331. A transmission rod 335 is provided between the two sets of connecting arms 332, and one end of the transmission rod 335 is fixedly connected to a set of adjacent connecting arms 332.

[0044] The elastic telescopic rod 333 is provided with a fixed end and a telescopic end, wherein the telescopic end is the working end of the elastic telescopic rod 333, and a tension spring for resetting is provided between the fixed end and the telescopic end, the tension spring being located inside the fixed end. The fixed end of the elastic telescopic rod 333 is fixed to the connecting arm 332.

[0045] The connecting seat 334 is fixedly installed on the telescopic end of the elastic telescopic rod 333. Two sets of elastic telescopic rods 333 are provided on one side of the mounting frame 11. The two sets of elastic telescopic rods 333 are symmetrically arranged along the length direction of the connecting seat 334. Therefore, in this embodiment, a total of four sets of elastic telescopic rods 333 are provided, so two sets of connecting seats 334 are also provided, and they are also symmetrically arranged on the mounting frame 11.

[0046] The rotating shaft 321 is configured as a stepped shaft. One end of the rotating shaft 321 is rotatably connected to a set of connecting seats 334. The rotating shaft 321 is mounted on the mounting plate 31 through two sets of elastic connecting members 33. The rolling sleeve 322 is coaxially sleeved on the rotating shaft 321. Both ends of the rotating shaft 321 are provided with external threads. A positioning ring 323 is provided at one end of the rotating shaft 321 and is threadedly connected to the rotating shaft 321. Two sets of positioning rings 323 are provided, and the two sets of positioning rings 323 fix the rolling sleeve 322 on the rotating shaft 321. In this embodiment, the rolling sleeve 322 can be made of the same material as the work clothes. Of course, in other embodiments of this application, the rolling sleeve 322 can also be made of other materials, and appropriate adjustments need to be made according to the changes in the simulated work scenario.

[0047] Reference Figure 2 , Figure 3 and Figure 4 In this embodiment, the rotating component 37 includes an end face gear 371, a rotating rod 372, a torsion spring 374, and a cam 373. The end face gear 371 is coaxially fixed at the end of the rotating part 311 away from the mounting plate 31. A fixed shaft is fixedly mounted on the rotating frame 12. A rotating seat is fixed at the middle position of the rotating rod 372 along its own length direction. The rotating seat is rotatably connected to the fixed shaft. The rotating rod 372 is rotatably mounted on the rotating frame 12 through the rotating seat. The torsion spring 374 is disposed between the rotating rod 372 and the rotating frame 12. One end of the torsion spring 374 is fixedly connected to the rotating frame 12, and the other end of the torsion spring 374 is fixedly connected to the rotating seat. The cam 373 is fixedly mounted on the connecting shaft 331. One end of the rotating rod 372 movably abuts against the cam 373. A tooth is fixedly provided at the end of the rotating rod 372 away from the cam 373. The tooth can be inserted and adapted to the end face gear 371.

[0048] The drive unit 34 includes a motor 341, a turntable 342, and a lever 343. The motor 341 is fixed on the mounting bracket 11 and is electrically connected to the control panel 21. The turntable 342 is fixed on the output end of the motor 341. One end of the lever 343 is rotatably connected to the transmission rod 335, and the other end of the lever 343 is rotatably connected to the turntable 342. The end of the lever 343 connected to the turntable 342 is away from the rotation center of the turntable 342.

[0049] Reference Figure 5In this embodiment, the medium coating component 35 includes a storage tank 351, an injection pump 352, a storage box 353, and a ball bearing 354. The storage tank 351 is fixed on the base 1 and is located on one side of the mounting bracket 11 and below the combustion assembly 4. The storage box 353 is fixedly mounted between two sets of support plates 111 and is located below the mounting plate 31. The injection pump 352 is fixed on the base plate and is electrically connected to the control panel 21. The suction end of the injection pump 352 is connected to the storage tank 351, and the discharge end of the injection pump 352 is connected to the storage box 353. The storage tank 351 stores environmental liquid medium, and the storage box 353 is filled with environmental liquid medium.

[0050] In this embodiment, the ambient liquid medium can be crude oil. Of course, in other embodiments of this application, the ambient liquid medium can also be other liquids that appear in the petrochemical working environment and may affect the flame retardant properties of work clothes, such as diesel, strong acid and strong alkali solutions, etc.

[0051] One side of the liquid storage box 353 is flush with the side of the support plate 111. The support plate 111 is a rectangular plate, and the support plate 111 has a chamfer on the side near the mounting plate 31. The chamfered edge is flush with the side of the mounting plate 31 facing away from the rotating frame 12. The side of the liquid storage box 353 near the support plate 111 has multiple sets of liquid outlets 3531, which are evenly distributed on the liquid storage box 353 and are connected to the liquid storage box 353. A ball bearing 354... Rotary and embedded in the liquid outlet 3531, a portion of the ball bearing 354 protrudes from the surface of the liquid storage box 353. When the driving component 34 drives the elastic connecting component 33 to reciprocate on the mounting frame 11, the roller 32 can selectively engage with either the mounting plate 31 or the liquid storage box 353. When the roller 32 engages with the liquid storage box 353, the roller 32 slides over the ball bearing 354, thereby coating the ambient liquid medium in the liquid storage box 353 onto the roller 32 through the ball bearing 354.

[0052] The flow rate of the coating medium is precisely controlled by the injection pump 352, which can adjust the degree of contamination according to experimental needs, such as simulating different scenarios such as slight contamination (small amount of oil stains) or heavy contamination (chemical immersion) of work clothes, making the experiment more flexible; at the same time, the ball bearing 354 coating method is used to ensure that the contaminants are evenly distributed on the sample surface, improving the consistency and repeatability of the experiment and avoiding the errors that may be caused by traditional manual coating.

[0053] More specifically, the workwear sample is laid on the mounting plate 31, and the annular cover 36 is fastened onto the mounting plate 31. The annular cover 36 is then tightened, causing the first and second step surfaces to abut against each other, thus fixing the workwear sample onto the mounting plate 31. The motor 341 is started, driving the turntable 342 to rotate. The turntable 342, via the lever 343, drives the connecting arm 332 to reciprocate on the mounting frame 11. The pressing roller 32 circulates between the mounting plate 31 and the liquid storage box 353, pressing the sample repeatedly. During this process, when the pressing roller 32 presses against the liquid storage box 353... Roller 32 will press down on ball 354 and slide over it. Ball 354 will then apply the liquid medium in liquid storage box 353 to roller 32. This allows roller 32, which is already contaminated with liquid medium, to apply the liquid medium to the workwear sample. At the same time, roller 32 will repeatedly roll the workwear sample to simulate the frictional wear of the workwear in actual use. After rolling a certain number of times, the sample will be directly burned or deflagrated. This allows for a comprehensive evaluation of the flame retardant performance of the workwear and its actual service life.

[0054] Reference Figure 5 , Figure 6 and Figure 7 In this embodiment, the combustion assembly 4 includes a sliding frame 41, a slide block 43, a spray gun 42, a sliding component, and a mode switching component 44. The sliding frame 41 is fixed on the housing 2, and a slide rail is fixed on the sliding frame 41. A slider is fixed on the slide block 43, and the slider is slidably connected to the slide rail. The slide block 43 is slidably mounted on the sliding frame 41 via the slide rail. The spray gun 42 is fixed on the slide block 43, and the spray gun 42 faces the side of the mounting plate 31 away from the rotating frame 12. A gas storage tank for providing fuel to the spray gun 42 is installed on the outside of the housing 2. The gas storage tank stores methane gas. The sliding component can be configured as a hydraulic cylinder. The sliding frame 41 is fixed on the side of the sliding frame 41 away from the spray gun 42. The telescopic end of the sliding component is fixedly connected to the slide block 43. The sliding component can drive the slide block 43 to slide back and forth on the sliding frame 41.

[0055] The mode switching component 44 includes a switching plate 441, a reset spring 442, and an electromagnet 443. A buffer tube 421 is provided on the spray gun 42. The diameter of the buffer tube 421 is larger than the diameter of the nozzle of the spray gun 42. A flame head 422 is provided at the end of the buffer tube 421 away from the spray gun 42. An igniter 423 and a mounting part 424 are respectively provided on the flame head 422. The igniter 423 is electrically connected to the control panel 21. In this embodiment, the mounting part 424 is a rectangular block. A receiving cavity 4241 is opened in the mounting part 424. The switching plate 441 is slidably disposed in the receiving cavity 4241. A first vent hole 4411 and a second vent hole 4412 are respectively opened through the switching plate 441 along its own length direction.

[0056] The second vent 4412 is embedded with multiple sets of isolation valves 444, which can be opened and closed within the second vent 4412. The isolation valves 444 are petal-shaped and can be made of heat-resistant metal. The multiple sets of isolation valves 444 are circumferentially distributed within the second vent 4412, and adjacent sets of isolation valves 444 abut against each other, thereby blocking the second vent 4412. When the methane in the buffer tube 421 reaches a certain pressure, the isolation valves 444 will be forced open, thereby connecting the flame head 422 with the buffer tube 421. At this time, the methane will undergo deflagration after passing through the igniter 423, and then act on the workwear sample.

[0057] The reset spring 442 is located at one end of the switching plate 441 along its length. The reset spring 442 is disposed in the receiving cavity 4241. One end of the reset spring 442 is fixedly connected to the inner wall of the receiving cavity 4241. The reset spring 442 is fixedly connected to one end of the switching plate 441. The electromagnet 443 is disposed at the end of the switching plate 441 away from the reset spring 442. The switching plate 441 is made of metal material. The switching plate 441 can be attracted by the electromagnet 443. The electromagnet 443 is fixedly mounted on the mounting part 424. The electromagnet 443 is electrically connected to the control panel 21.

[0058] More specifically, in the initial state, the electromagnet 443 is not energized, and the reset spring 442 is in a tightened state. At this time, the buffer tube 421 is connected to the flame head 422 through the first vent 4411, so the spray gun 42 is just ordinary flame burning. The flame head 422 is connected to the buffer tube 421 through the second vent 4412. Due to the setting of the isolation valve 444, the buffer tube 421 will only be turned on after a certain amount of methane is stored, thus forming deflagration.

[0059] In traditional flame retardant testing, test samples are simply burned with an open flame. However, in petrochemical environments, in addition to open flame combustion, deflagration accidents often occur due to gas leaks. In deflagration scenarios, simple flame retardant testing is insufficient to evaluate the flame retardant performance of petrochemical work clothes. This is because deflagration generates not only high temperatures but also high-temperature gas jets. These gas jets, unlike open flame combustion, penetrate the work clothes and act on the skin more quickly. Furthermore, most gases in petrochemical environments are corrosive. Therefore, by setting up a mode switching component 44 and a medium coating component 35, different types of combustion scenarios (such as open flame, slow combustion, deflagration, etc.) are simulated. This allows for flame retardant testing with different standards to adapt to different application environments of work clothes, enhancing the versatility of the testing system and ensuring a more comprehensive evaluation of the flame retardant performance of petrochemical work clothes.

[0060] Reference Figure 5In this embodiment, the filter assembly 6 includes an exhaust fan 61, an exhaust pipe 62, and a filter box 63. An exhaust port 22 is provided on the housing 2. The exhaust fan 61 is fixed in the exhaust port 22 and is electrically connected to the control panel 21. The filter box 63 is located on one side of the housing 2. One end of the exhaust pipe 62 is connected to the exhaust port 22, and the other end of the exhaust pipe 62 extends into the filter box 63. Water is injected into the filter box 63, and the end of the exhaust pipe 62 extending into the filter box 63 is submerged in water. The filter box 63 can filter the smoke generated by the flame retardant performance test of petrochemical work clothes.

[0061] Reference Figure 5 The detection component 5 includes a vision camera 51 and a temperature sensor 52. The vision camera 51 is mounted on the housing 2, above the mounting plate 31, and is electrically connected to the control panel 21. The vision camera 51 can capture real-time images of the burning status of the workwear sample, including the size of the burned area and the damage to the sample after burning stops. The temperature sensor 52 is fixedly embedded on the side of the mounting plate 31 facing away from the rotating frame 12, and is located at the center of the mounting plate 31. The temperature sensor 52 is electrically connected to the control panel 21.

[0062] The implementation principle of the petrochemical workwear flame retardant performance testing system in this application embodiment is as follows: The petrochemical workwear sample to be tested is fixed on the mounting plate 31, and then the rolling roller 32 is started to repeatedly roll the sample to simulate the wear and tear of the workwear in daily use. At the same time, during the rolling process, the rolling roller 32 will pass over the liquid storage box 353, so that the rolling roller 32 is coated with liquid medium, thereby simulating the workwear being contaminated with flammable or corrosive liquid medium in daily use, which leads to the attenuation of the flame retardant performance of the workwear. After the rolling roller 32 rolls the sample on the mounting plate 31 at a certain frequency, the control sliding component drives the spray gun 42 to extend and burn the sample. The visual camera 51 monitors the burning of the sample in real time, and the temperature sensor 52 can detect the temperature change on the back of the sample when it is burned. In this way, the flame retardant performance of the workwear is comprehensively tested and the reasonable service life of the workwear in daily use is evaluated.

[0063] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A flame retardant performance testing system for petrochemical work clothes, characterized in that, include: A base, on which a mounting bracket is fixedly mounted, and a housing is provided on the base, with a control panel provided on the housing; The simulation component includes a mounting plate, a pressing roller, an elastic connector, and a driving component. A workwear sample is fixed on the mounting plate, which is rotatably mounted on a mounting frame. The elastic connector is rotatably mounted on the mounting frame. The pressing roller is mounted on the elastic connector and movably abuts against the mounting plate. The driving component is mounted on a base and is drively connected to the elastic connector. The driving component drives the elastic connector to reciprocate on the mounting frame, thereby causing the pressing roller to repeatedly press the workwear sample fixed on the mounting plate. A medium coating component includes a liquid storage box fixed on a mounting frame. The liquid storage box is filled with an ambient liquid medium. The liquid storage box has a liquid outlet that communicates with the liquid storage box. A ball bearing is provided on the liquid outlet and is rotatably embedded in the liquid outlet. When a driving component can drive the elastic connecting component to reciprocate on the mounting frame, the rolling roller can selectively abut against either the mounting plate or the liquid storage box. When the rolling roller abuts against the liquid storage box, the rolling roller slides over the ball bearing, thereby coating the ambient liquid medium in the liquid storage box onto the rolling roller through the ball bearing. The combustion assembly includes a sliding frame and a spray gun for burning work clothes samples. The sliding frame is fixed to the housing, and a slide block is slidably disposed on the sliding frame. The spray gun is disposed on the slide block and faces the mounting plate. The detection component includes a vision camera mounted on the housing, which can detect the burning status of the workwear sample in real time.

2. The flame retardant performance testing system for petrochemical work clothes according to claim 1, characterized in that: The combustion assembly further includes a mode switching component, which comprises a switching plate, a return spring, and an electromagnet. The spray gun is equipped with a buffer tube, one end of which has a flame head. The flame head has an igniter and a mounting portion. The igniter is electrically connected to the control panel. The mounting portion has a receiving cavity, and the switching plate is slidably disposed within the receiving cavity. The switching plate has a first vent and a second vent along its length. Multiple sets of isolation valves are embedded in the second vent, and these isolation valves are openable and closable within the second vent. The return spring is located at... The electromagnet is located at one end of the switching plate along its length, and at the other end of the switching plate. A return spring is disposed within the receiving cavity, with one end fixedly connected to the inner wall of the receiving cavity and to one end of the switching plate. The electromagnet is fixedly mounted on the mounting portion and electrically connected to the control panel. The electromagnet can act on the switching plate. When the electromagnet is activated, it attracts one end of the switching plate. The flame outlet is connected to the buffer tube through the second vent hole. When the electromagnet is deactivated, the flame outlet is connected to the buffer tube through the first vent hole.

3. The flame retardant performance testing system for petrochemical work clothes according to claim 2, characterized in that: The medium coating component also includes a liquid storage tank and a liquid injection pump. The liquid storage tank is fixed on the base, and the liquid injection pump is disposed on the base. The suction end of the liquid injection pump is connected to the liquid storage tank, and the discharge end of the liquid injection pump is connected to the liquid storage box.

4. The flame retardant performance testing system for petrochemical work clothes according to claim 3, characterized in that: The rolling roller includes a rotating shaft, a rolling sleeve, and a positioning ring. One end of the rotating shaft is rotatably mounted on the elastic connector. Two sets of elastic connectors are provided, and the two sets of elastic connectors are symmetrically arranged along the diameter direction of the mounting plate. The rotating shaft is supported on the mounting plate through the two sets of elastic connectors. The rolling sleeve is coaxially sleeved on the rotating shaft. Both ends of the rotating shaft are provided with external threads. The positioning ring is located at one end of the rotating shaft and is threadedly connected to the rotating shaft. Two sets of positioning rings are provided, and the two sets of positioning rings fix the rolling sleeve on the rotating shaft.

5. The flame retardant performance testing system for petrochemical work clothes according to claim 4, characterized in that: The elastic connector includes a connecting shaft, a connecting arm, and an elastic telescopic rod. The connecting shaft is rotatably mounted on the mounting frame. The connecting arm is fixed to one end of the connecting shaft. There are two sets of connecting arms, which are symmetrically arranged along the length of the connecting shaft. The fixed end of the elastic telescopic rod is fixed to the connecting arm. A connecting seat is provided on the telescopic end of the elastic telescopic rod. One end of the rotating shaft is rotatably connected to the connecting seat. There are two sets of elastic telescopic rods, which are symmetrically arranged along the width of the connecting arm.

6. The flame retardant performance testing system for petrochemical work clothes according to claim 5, characterized in that: A rotating frame is fixed on the mounting frame, and a rotating part is fixed at one end of the mounting plate. The rotating part is rotatably connected to the rotating frame. The mounting plate is rotatably mounted on the rotating frame via the rotating part, and the mounting plate is inclined on the rotating frame. An annular cover is provided on the mounting plate. A positioning outer edge is fixed at the end of the mounting plate with the rotating part. The positioning outer edge and the mounting plate form a first stepped surface. An enlarged diameter part is provided on the inner wall of the annular cover. A second stepped surface is formed between the enlarged diameter part and the inner wall of the annular cover. The annular cover is threadedly connected to the positioning outer edge. When the workwear sample is laid on the mounting plate, the annular cover is fastened to the mounting plate, and the first stepped surface and the second stepped surface abut against each other, thereby fixing the workwear sample on the mounting plate.

7. The flame retardant performance testing system for petrochemical work clothes according to claim 6, characterized in that: The detection component also includes a temperature sensor, which is embedded on the side of the mounting plate opposite to the rotating frame, and is electrically connected to the control panel.

8. The flame retardant performance testing system for petrochemical work clothes according to claim 7, characterized in that: The driving component includes a motor, a turntable, and a lever. A transmission rod is provided between the two sets of connecting arms. One end of the transmission rod is fixedly connected to a set of adjacent connecting arms. The motor is fixed on the mounting bracket and electrically connected to the control panel. The turntable is fixed on the output end of the motor. One end of the lever is rotatably connected to the transmission rod, and the other end of the lever is rotatably connected to the turntable. The end of the lever connected to the turntable is away from the rotation center of the turntable.

9. A flame retardant performance testing system for petrochemical work clothes according to claim 8, characterized in that: The rotating part is provided with a turning component, which includes an end face gear, a turning rod, and a cam. The end face gear is fixed on the rotating part, the turning rod is rotatably mounted on the rotating frame, and a torsion spring is provided between the turning rod and the rotating frame. The cam is fixed on the connecting shaft. One end of the turning rod is movably abutting against the cam, and the other end of the turning rod is inserted into the end face gear. When the connecting arm reciprocates on the mounting frame, the turning rod cyclically turns the end face gear, thereby causing the mounting plate to rotate on the rotating frame.

10. The flame retardant performance testing system for petrochemical work clothes according to claim 1, characterized in that: It also includes a filter assembly, which includes an exhaust fan, an exhaust pipe, and a filter box. The housing has an exhaust port, the exhaust fan is fixed inside the exhaust port, the filter box is located on one side of the housing, one end of the exhaust pipe is connected to the exhaust port, and the other end of the exhaust pipe extends into the filter box. The filter box can filter the smoke generated by the flame retardant performance test of petrochemical work clothes.

Images