Jet fire detection device for detecting fire control blanket

Abstract

The invention discloses a jet fire detection device for detecting a fire control blanket, which comprises a flame nozzle and a circulating cabin, the flame nozzle sprays fire to a fire control blanket sample through a flame nozzle of the circulating cabin, the flame nozzle is connected with a telescopic bracket, the bottom of the telescopic bracket is provided with a sliding block, the sliding block is connected with a sliding rail, and the sliding rail is connected with a sliding rod. The distance adjusting device is used for adjusting the distance between the flame nozzle and the fire control blanket sample; a front temperature measuring probe and a rear temperature measuring probe are arranged in the circulating cabin; and the temperatures of the counter-fire surface and the back-fire surface of the fire control blanket sample are respectively detected through the front temperature measuring probe and the rear temperature measuring probe. The jet fire detection device specially used for detecting the high temperature resistance of the fire control blanket is designed, has the functions of high temperature, adjustable temperature, accurate positioning of the detection position and the like, and can detect indexes such as the high temperature resistance temperature, the high temperature bearing time, the counter-fire surface temperature, the back-fire surface temperature and the temperature difference between the counter-fire surface and the back-fire surface of the fire control blanket.

Description

Technical Field

[0001] This invention belongs to the field of fire control blankets for new energy vehicles, and specifically relates to a jet fire detection device for detecting fire control blankets. Background Technology

[0002] With the rapid development of new energy vehicles, their ownership is increasing year by year. While bringing convenience to our lives, new energy vehicles also pose certain safety hazards. Compared to traditional gasoline vehicles, new energy vehicles have a higher rate of spontaneous combustion. Battery problems, improper charging, collisions, or modifications can all cause spontaneous combustion. Vehicle fires can cause significant personal injury and property damage; therefore, equipping them with appropriate firefighting and disaster prevention equipment is crucial.

[0003] A fire blanket is a fire protection device used to extinguish small fires. It is also called a "fire blanket" or "fireproof blanket". Its uses include extinguishing initial fires, blocking flames and providing escape protection, preventing the spread of flames, high temperatures, toxic gases and electrolyte splashes. It is usually made of high-temperature resistant materials, such as glass fiber, ceramic fiber or flame-retardant coated fabric, which can withstand high temperatures of 400℃ to 1200℃.

[0004] To ensure the fireproofing and extinguishing effectiveness of fire control blankets, the evaluation indicators include high-temperature resistance, time spent in high-temperature conditions, temperature of the fire-facing side, temperature of the unfired side, and the temperature difference between the fire-facing and unfired sides. Therefore, the testing device must be capable of achieving high temperatures, adjustable temperature settings, and accurate detection location. Existing instruments for testing the high-temperature resistance of textiles include thermal protection performance (TPP) testers, radiation protection performance (RPP) testers, and contact heat testers. These existing devices lack the capabilities to achieve high temperatures, adjustable temperature settings, and accurate detection location, making it difficult to comprehensively evaluate the aforementioned indicators of fire control blankets and unsuitable for jet fire testing of fire control blankets. Summary of the Invention

[0005] The purpose of this invention is to provide a jet fire detection device for testing fire control blankets. Addressing the shortcomings of existing technologies, this invention designs a jet fire detection device specifically for testing the high-temperature resistance of fire control blankets. It features high-temperature capability, adjustable temperature, and accurate detection positioning. The device can detect indicators such as the high-temperature resistance temperature, the time the fire control blanket can withstand the high temperature, the temperature of the fire-facing side, the temperature of the unfired side, and the temperature difference between the fire-facing and unfired sides, thereby improving the reliability of the jet fire detection test and increasing the accuracy of the test results.

[0006] To solve the above technical problems, the following technical solution is adopted:

[0007] A jet fire detection device for testing fire control blankets includes a nozzle and a circulation chamber. The nozzle sprays fire onto a fire control blanket sample through a nozzle in the circulation chamber. The circulation chamber is used to mount the fire control blanket sample. The nozzle is connected to a telescopic bracket for adjusting the height of the nozzle. A slider is provided at the bottom of the telescopic bracket and connected to a slide rail for adjusting the distance between the nozzle and the fire control blanket sample. A front temperature probe and a rear temperature probe are provided in the circulation chamber to detect the temperature of the fire-facing and un-fired surfaces of the fire control blanket sample, respectively.

[0008] Furthermore, the jet fire detection device also includes a stand for mounting the jet nozzle and the circulation chamber.

[0009] Furthermore, the jet fire detection device also includes an infrared thermometer for detecting the temperature of the flame emitted from the jet nozzle.

[0010] Furthermore, the circulation chamber is equipped with a circulation chamber door for opening or closing the circulation chamber; the circulation chamber is equipped with a fastening component, which includes a hinge seat and a buckle hinged to the hinge seat, the buckle being a knob structure for adjusting tightness; the circulation chamber door is equipped with a locking component, the locking component having a locking slot, the buckle and the locking slot matching each other for controlling the opening or closing of the circulation chamber door.

[0011] Furthermore, a fabric clamp is installed inside the circulation chamber to clamp the fire control blanket sample.

[0012] Furthermore, the fabric clamp includes a front clamp and a rear clamp, which are tightened and loosened by bolts and screw holes to clamp and release the fire control blanket sample.

[0013] Furthermore, the circulation chamber is provided with an opening and a guide rail. The fabric clip enters and exits the circulation chamber through the opening and along the guide rail.

[0014] Furthermore, the front temperature probe is connected to a lifting screw, which is connected to the lifting screw hole of the circulation chamber, and the height of the front temperature probe can be adjusted by rotation.

[0015] Furthermore, the jet fire detection device also includes a circulation chamber adjustment component, which includes a circulation chamber adjustment plate and an adjustment plate handle. The adjustment plate handle is used to adjust the position of the circulation chamber adjustment plate in the circulation chamber. The circulation chamber adjustment plate is equipped with the rear temperature probe, and the position of the rear temperature probe is adjusted by the circulation chamber adjustment plate and the adjustment plate handle.

[0016] Furthermore, the jet fire detection device also includes a protective chamber for heat insulation.

[0017] The above technical solution has the following beneficial effects:

[0018] This invention designs a jet fire testing device specifically for testing the high-temperature resistance performance of fire control blankets. It has functions such as high-temperature capability, adjustable temperature, and accurate detection position. It can detect indicators such as the high-temperature resistance temperature of the fire control blanket, the high-temperature endurance time, the temperature of the fire-facing side, the temperature of the unfired side, and the temperature difference between the fire-facing and unfired sides, thereby improving the reliability of jet fire testing and increasing the accuracy of test results.

[0019] The circulation chamber creates a semi-enclosed environment during the testing process, which can prevent heat loss and maintain a relatively stable test temperature.

[0020] The circulating chamber is equipped with a front temperature probe and a rear temperature probe. The front and rear temperature probes are used to detect the temperature of the fire-facing and unfacing surfaces of the fire control blanket sample. This not only allows for real-time control of the test temperature of the fire control blanket sample, improving the accuracy of the test results, but also enables the detection of the temperature difference between the fire-facing and unfacing surfaces of the fire control blanket.

[0021] The flame nozzle is installed via a telescopic bracket using a slider-rail method. Compared to a handheld flame nozzle, it has the following advantages: 1. Safer operation; 2. Stable movement, which is conducive to accurately controlling the distance between the flame nozzle and the fire control blanket sample, thereby achieving the purpose of accurately adjusting the flame temperature. In addition, the telescopic bracket can adjust the height of the flame nozzle, enabling it to accurately spray fire at the designated position, significantly improving the detection effect and increasing the reliability of the detection results.

[0022] The fabric clamp uses a ring-shaped clamp with bolt holes to clamp the fire control blanket sample, which not only clamps it firmly but also makes it easy to operate.

[0023] The front temperature probe is adjustable via a lifting screw, allowing it to be positioned at any point on the fire control blanket sample to accurately detect the temperature of the fire-facing surface.

[0024] The circulation chamber adjustment component is used to install the rear temperature probe and adjust the distance between the rear temperature probe and the fire control blanket sample to achieve the purpose of accurately detecting the temperature of the unexposed surface of the fire control blanket sample. Attached Figure Description

[0025] The present invention will be further described below with reference to the accompanying drawings:

[0026] Figure 1 This is an isometric view of the jet fire detection device.

[0027] Figure 2 This is a schematic diagram of the jet fire detection device from the left.

[0028] Figure 3This is a left-side sectional view of the jet fire detection device;

[0029] Figure 4 A schematic diagram showing the open door and pulled-out sample state of the jet fire detection device;

[0030] Figure 5 This is an isometric sectional view of the jet fire detection device;

[0031] Figure 6 This is a structural schematic diagram of the circulation chamber adjustment component;

[0032] Figure 7 This is a schematic diagram of the fabric clip structure;

[0033] Figure 8 for Figure 1 Enlarged schematic diagram of point I in the middle.

[0034] Figure 9 This is a schematic diagram of the temperature curve for high-temperature resistance testing.

[0035] The attached diagrams are labeled as follows: 1. Stand; 2. Slide rail; 3. Flame nozzle; 31. Telescopic bracket; 4. Infrared thermometer; 41. Telescopic bracket; 5. Circulation chamber; 6. Circulation chamber door; 7. Flame nozzle; 8. Observation window; 9. Fabric clip; 91. Rear clip; 92. Front clip; 10. Lifting screw; 11. Adjusting plate handle; 12. Circulation chamber adjusting plate; 13. Rear temperature probe; 14. Protective chamber; 15. Front temperature probe; 16. Fastener; 161. Hinge seat; 162. Clip; 17. Bayonet; 171. Fire blanket sample; 18. Opening; 19. Guide rail; 20. Detailed Implementation

[0036] This invention aims to provide a jet fire detection device for testing fire control blankets. It is specifically designed for testing the high-temperature resistance of fire control blankets and has functions such as high-temperature capability, temperature adjustment, and accurate detection position. It can detect indicators such as the high-temperature resistance temperature, high-temperature endurance time, temperature of the fire-facing side, temperature of the unfired side, and the temperature difference between the fire-facing and unfired sides of the fire control blanket, thereby improving the reliability of jet fire detection tests and increasing the accuracy of test results.

[0037] The present invention will be described in detail below with reference to specific embodiments:

[0038] A jet fire detection device for detecting fire control blankets, such as Figures 1 to 8As shown, the apparatus includes a stand 1, a flame nozzle 3, a circulation chamber 5, and a fabric clamp 9 installed inside the circulation chamber 5. The stand 1 is used to mount the circulation chamber 5 and the flame nozzle 3. The fabric clamp 9 is used to clamp the fire blanket sample 18. The fire blanket sample 18 is placed inside the circulation chamber 5. The circulation chamber 5 is equipped with a circulation chamber door 6, and the circulation chamber door 6 is equipped with a flame nozzle 7. The flame nozzle 3 sprays flames onto the fire blanket sample 18 inside the circulation chamber 5 through the flame nozzle 7, thereby achieving high-temperature resistance testing in a safe manner and avoiding burns to workers. A front temperature probe 15 is installed inside the circulation chamber 5. The front temperature probe 15 detects the flame temperature (i.e., the temperature of the flame-facing surface) of the fire blanket sample 18, which can control the test temperature of the fire blanket sample 18 in real time and improve the accuracy of the test results.

[0039] The flame nozzle 3 is connected to a telescopic bracket 31. A slider 32 is located at the bottom of the telescopic bracket 31, and a slide rail 2 is located at a corresponding position on the stand 1. The slider 32 is connected to the slide rail 2, used to adjust the distance between the flame nozzle 3 and the fire blanket sample 18. The flame nozzle 3 is installed via the telescopic bracket 31 using the slider 32-slide rail 2 method. Compared to a handheld flame nozzle 3, this method has the following advantages: 1. Safer operation; 2. Stable movement, which facilitates precise control of the distance between the flame nozzle 3 and the fire blanket sample 18, thereby achieving precise adjustment of the flame temperature. Furthermore, the telescopic bracket 31 can adjust the height of the flame nozzle 3, enabling it to accurately spray flame at a designated location, significantly improving the detection effect and increasing the reliability of the detection results.

[0040] The jet flame detection device also includes an infrared thermometer 4, which is used to detect the temperature of the flame ejected from the nozzle 3. The infrared thermometer 4 is installed on the platform 1 via a telescopic bracket 41. The height of the infrared thermometer 4 can be adaptively adjusted according to the height of the nozzle 3, so as to accurately detect the temperature of the flame ejected from the nozzle 3.

[0041] The recirculation chamber door 6 is used to open or close the recirculation chamber 5. When closed, it allows for safe inspection operations; when open, it allows for corresponding operations on its internal structure. Figure 8 As shown, the circulation chamber 5 is provided with a fastener 16, which includes a hinge seat 162 and a buckle 161 hinged to the hinge seat 162. The buckle 161 is a knob structure that can be tightened and loosened to adjust the tightness. The circulation chamber door 6 is provided with a latch 17, which has a latch 171. The buckle 161 and the latch 171 are matched with each other, that is, the buckle 161 can be inserted into the latch 171 to achieve the purpose of fastening.

[0042] like Figure 7As shown, the fabric clamp 9 includes a front clamping plate 92 and a rear clamping plate 91, both of which are rectangular ring structures. The front clamping plate 92 and the rear clamping plate 91 are tightened and loosened by bolts and screw holes. When tightened, they can clamp the fire control blanket sample 18; when loosened, they can release the fire control blanket sample 18, facilitating loading and unloading. The fabric clamp 9 is also equipped with a handle for easy loading and unloading into or out of the circulation chamber 5. In addition, to facilitate the entry and exit of the fabric clamp 9 into and out of the circulation chamber 5, an opening 19 is provided on the side of the circulation chamber 5, and a transverse guide rail 20 is provided inside the circulation chamber 5. The width of the opening 19 and the guide rail 20 is the same as the clamping width of the fabric clamp 9, allowing the fabric to enter and exit the circulation chamber 5 through the opening 19 and along the guide rail 20. This not only facilitates the entry and exit of the fabric clamp 9 into and out of the circulation chamber 5 but also restricts the position of the fabric clamp 9 in the circulation chamber 5, indirectly improving the detection effect.

[0043] A lifting screw 10 is connected to the upper end of the front temperature probe 15. The lifting screw 10 is connected to the lifting screw hole on the top of the circulation chamber 5. By rotating it, the height of the front temperature probe 15 can be adjusted, allowing it to be arbitrarily adjusted to any position on the fire control blanket sample 18 to accurately detect the temperature of the fire-facing surface. In addition, a rotating handle is connected to the top of the lifting screw 10 for easy rotation.

[0044] like Figure 5 and Figure 6 As shown, the jet fire detection device also includes a circulation chamber adjustment component, which includes a circulation chamber adjustment plate 12 and an adjustment plate handle 11. The adjustment plate handle 11 is used to adjust the position of the circulation chamber adjustment plate 12 in the circulation chamber 5. The circulation chamber adjustment plate 12 is located behind the fabric clip 9, and its front end is equipped with a rear temperature probe 13. The rear temperature probe 13 is used to detect the back temperature (i.e., the temperature of the unexposed surface) of the fire control blanket sample 18, which can evaluate the temperature difference between the fire-facing surface and the unexposed surface of the fire control blanket sample, and can also reflect its high temperature resistance performance.

[0045] The jet fire detection device also includes a protective chamber 14, which is located at the rear end of the circulation chamber 5 and is separated by a partition. The protective chamber 14 is used for heat insulation and protection. The adjustment plate handle 11 passes through the protective chamber 14 and the partition from the rear end and is then connected to the circulation chamber adjustment plate 12.

[0046] The side of the circulation chamber 5 is also equipped with an observation window 8 for easy observation of the internal working conditions.

[0047] The high-temperature resistance performance of the fire control blanket was tested using the jet fire detection device of the present invention. The test process is as follows:

[0048] 1. Test conditions

[0049] Before the test, the fire control blanket sample 18 should be placed in an environment with a temperature of (20±10)℃ and a relative humidity of (60±10)% for 24 hours until it reaches a stable state.

[0050] 2. Sampling

[0051] For the high-temperature resistance test, two fire blanket samples 18 should be cut from a position 0.5m above the seam edge of the fire blanket. The samples should have a width of (500±1)mm and a length of (500±10)mm. The fire blanket samples 18 should correspond to the configuration of the fire blanket. The fire blanket samples 18 should include the sewn seam area in the middle.

[0052] 3. Test ambient temperature

[0053] The ambient temperature should be between 10℃ and 35℃.

[0054] 4. Test methods

[0055] The fire control blanket sample 18 should be placed in the fabric clip 9, and should be fixed to prevent slippage, and it should be ensured that the fire control blanket sample 18 is not pulled too tight.

[0056] The distance between the flame nozzle 3 and the surface of the fire control blanket sample 18 should be >10cm. Ensure that the fire control blanket sample 18 is continuously exposed to direct flame.

[0057] Once the temperature in the circulation chamber 5 is measured to be at a suitable level by the front temperature probe 15, the experiment begins.

[0058] The rear temperature probe 13, located behind the fabric clip 9, records the heat resistance data of the fire control blanket sample 18 during the test.

[0059] To test the high-temperature resistance of the fire control blanket, a front temperature probe 15 should be installed inside the circulation chamber 5 to ensure that the temperature reaches the levels shown in Table 1 during the test. Figure 9 The temperature shown. The test was terminated after 23 minutes.

[0060] Table 1. High Temperature Resistance Test Temperature

[0061] Serial Number Time (minutes) Temperature (°C) 1 0 20±5 2 10 1200±50 3 10.5 1200±50 4 12 700±50 5 13 700±50 6 14 1200±50 7 15 1200±50 8 16 700±50 9 17 700±50 10 18 1200±50 11 19 1200±50 12 20 700±50 13 21 700±50 14 22 1200±50 15 23 1200±50

[0062] 5. Test Results

[0063] If the fire control blanket sample 18 has no holes or seam failures at the end of the test, it is considered to have passed the test.

[0064] The above are merely specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on the present invention to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of the present invention.

Claims

1. A jet fire detection device for detecting fire control blankets, characterized in that: The device includes a flame nozzle and a circulation chamber. The flame nozzle sprays flame onto the fire control blanket sample through the flame outlet of the circulation chamber. The circulation chamber is used to mount the fire control blanket sample. The flame nozzle is connected to a telescopic bracket for adjusting the height of the flame nozzle. The bottom of the telescopic bracket is equipped with a slider connected to a slide rail for adjusting the distance between the flame nozzle and the fire control blanket sample. The circulation chamber is equipped with a front temperature probe and a rear temperature probe to detect the temperature of the fire-facing and un-fired surfaces of the fire control blanket sample, respectively.

2. The jet fire detection device for detecting fire control blankets according to claim 1, characterized in that: The jet fire detection device also includes a stand for mounting the jet nozzle and the circulation chamber.

3. The jet fire detection device for detecting fire control blankets according to claim 1, characterized in that: The jet fire detection device also includes an infrared thermometer for detecting the temperature of the flame emitted from the nozzle.

4. The jet fire detection device for detecting fire control blankets according to claim 1, characterized in that: The circulation chamber is equipped with a circulation chamber door for opening or closing the circulation chamber; the circulation chamber is equipped with a fastening component, which includes a hinge seat and a buckle hinged to the hinge seat. The buckle is a knob structure for adjusting the tightness; the circulation chamber door is equipped with a locking component, which has a locking slot. The buckle and the locking slot match each other to control the opening or closing of the circulation chamber door.

5. The jet fire detection device for detecting fire control blankets according to claim 1, characterized in that: The circulation chamber is equipped with fabric clamps for clamping the fire control blanket sample.

6. A jet fire detection device for detecting a fire control blanket according to claim 5, characterized in that: The fabric clamp includes a front clamp and a rear clamp. The front clamp and the rear clamp are tightened and loosened by bolts and screw holes, thereby clamping and releasing the fire control blanket sample.

7. A jet fire detection device for detecting a fire control blanket according to claim 6, characterized in that: The circulation chamber is provided with an opening and a guide rail. The fabric clip enters and exits the circulation chamber through the opening and along the guide rail.

8. The jet fire detection device for detecting fire control blankets according to claim 1, characterized in that: The front temperature probe is connected to a lifting screw, which is connected to the lifting screw hole of the circulation chamber. The height of the front temperature probe can be adjusted by rotating it.

9. A jet fire detection device for detecting a fire control blanket according to claim 1, characterized in that: The jet fire detection device also includes a circulation chamber adjustment component, which includes a circulation chamber adjustment plate and an adjustment plate handle. The adjustment plate handle is used to adjust the position of the circulation chamber adjustment plate in the circulation chamber. The circulation chamber adjustment plate is equipped with the rear temperature probe, and the position of the rear temperature probe is adjusted by the circulation chamber adjustment plate and the adjustment plate handle.

10. A jet fire detection device for detecting a fire control blanket according to claim 1, characterized in that: The jet fire detection device also includes a protective chamber for heat insulation.

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