CN218995274U - A test box and equipment for 45 angle automated combustion detects - Google Patents

Abstract

The utility model provides a test box and equipment for automatic combustion detection at an angle of 45 degrees, wherein the test box comprises a test box body, a pressure adjusting device, an optical system, a control panel, an air inlet pipe and an air outlet pipe. And black coatings are coated on the inner side walls of the test box body. The optical system is configured such that a vertical parallel light beam formed by the light emitted from the light source passing through the first optical device passes through the test box body in a direction perpendicular to the test box body and passes through the second optical device to be projected to the light receiver, and the light receiver receives the transmittance signal and then transmits the transmittance signal to the data processing system in the control panel, so that the minimum transmittance in the test process can be extracted. According to the utility model, through the combination of the closed test box with the black coating on the inner wall and the vertical parallel light path, the accurate and quantitative test is realized by the sensory judgment of personnel and the horizontal light path in the prior art, so that the feasibility of laboratory precision research establishment is realized.

Description

A test box and equipment for 45 angle automated combustion detects

Technical Field

The utility model relates to the technical field of 45-degree angle combustion test equipment, in particular to a test box and equipment for 45-degree angle automatic combustion detection.

Background

The 45 degree angle burn test is a method that TB/T3138-2018 must perform and that is decisive for the pass or fail of the rolling stock material. The existing 45 ° angle burn test was performed with only a simple 45 ° angle sample holder, alcohol container and alcohol holder, and the device was simply placed under an exhaust hood or in a fume hood. On the one hand, the detection space needs to have a large enough volume to ensure that sufficient oxygen is supplied for the sample to burn vigorously, but the oxygen content needs to be increased, the volume of the corresponding detection space also needs to be increased, and the existing detection space basically provides at least 1.0m of volume for the device independently ³ Is a fume hood. On the other hand, during the test, the influence of the detection environment (such as wind speed and light) on the detection result is not effectively controlled. Wherein, the wind speed can influence the fluctuation of the flame, change the flame propagation direction; the light can influence the observation of the phenomena of smoke color, thin smoke, smoldering and the like.

The grade of smoke includes extremely small, small and general, and grade determination is a determination item that seriously affects whether a material is acceptable or not. There are two problems with this: firstly, at a certain moment, subjective judgment inconsistency exists among people for smoke grades of samples; secondly, the judgment of the smoke grade is not only aimed at the maximum smoke yield observed at a certain moment, but also the total smoke yield and the maximum smoke yield at a certain moment in the whole test process are comprehensively considered, but the prior art is only artificial visual judgment, and simulation results are frequently available, namely, the smoke grade is easy to hesitate between two adjacent grades.

In addition, for the judging item which seriously affects whether the material is qualified or not, the fire level is judged, even if the uniform specified flame height is used as a dividing index among industries. However, the detector needs to stare at the flame in the whole course, so that the components of the detector are increased and the fatigue of eyes of the detector is increased. Eye fatigue, coupled with dynamic vision differences from person to person, is prone to inattention. Currently, a cotton thread is added at a specified flame height, and whether the cotton thread is blown or not is used as a judging index. However, the flame can be continuous flame (more than or equal to 4 s) or short flame (2-3 s) or flash flame (less than or equal to 1 s), and the short flame or flash flame can burn cotton threads, but the short flame or flash flame can only be recorded as a special phenomenon, and the existence of the short flame or the flash flame cannot be spread to a marked line as an index. Or shooting by a camera instead of observing by a person, but there is a trouble in finding and confirming the time points of special phenomena such as continuous burning, extinction, short burning, flash burning and the like in shooting segments. The total test time is generally 600-1000 s, and even if the shot fragment is converted into one piece Zhang Zhaopian, in order to avoid the need of checking each photo, at least two hundred photos can be checked by checking all photos in the folder as flat or medium icons. The factors cause low repeatability among different persons in the same laboratory and low reproducibility among laboratories, so that the precision of the detection result of the test method for different types of materials cannot be studied.

Disclosure of Invention

The utility model provides a test box and equipment for automatic combustion detection at an angle of 45 degrees, and aims to solve the problems that a large detection space is needed when a fume hood is adopted to conduct a combustion test at an angle of 45 degrees in the prior art, the detection environment cannot be effectively controlled, smoke grade judgment is greatly influenced by subjective factors, and the smoke quantity in the whole test process cannot be considered.

The utility model is realized in the following way:

the utility model provides a test box for 45 angle automation combustion detection, its characterized in that includes test box body, pressure adjusting device, optical system, control panel, is used for connecting the intake pipe of air compressor machine and is used for connecting exhaust system's blast pipe, intake pipe and blast pipe respectively with test box body intercommunication, test box body includes a chamber door, just all scribble black coating on the inside wall of test box body, control panel, optical system and pressure adjusting device all locate on the test box body, just pressure adjusting device and optical system respectively with control panel connects;

the optical system comprises a first optical device and a second optical device which are coaxially arranged along the direction perpendicular to the test box body, the first optical device comprises a light source, the second optical device comprises a light receiver, the optical system is connected with the control panel and is configured such that a vertical parallel light beam formed after light emitted by the light source passes through the first optical device passes through the test box body along the direction perpendicular to the test box body and passes through the second optical device and then is projected to the light receiver, and the light receiver receives a transmittance signal and then transmits the transmittance signal to a data processing system in the control panel so as to extract the minimum transmittance in the test process.

Further, in a preferred embodiment of the present utility model, the first optical device further includes a first housing, a lower lens and a lower light window, the first housing is disposed on an outer sidewall of the test chamber body and is located below the test chamber body, the lower light window is disposed on the test chamber body in a penetrating manner and is located above the first housing, the lower lens and the light source are sequentially disposed in the first housing along a direction away from the lower light window, and the light source, the lower lens and the lower light window are coaxially disposed.

Further, in a preferred embodiment of the present utility model, the second optical device includes a second housing, a glazing window and an upper lens, the second housing is disposed on an outer sidewall of the test chamber body and above the test chamber body, the glazing window is disposed on the test chamber body in a penetrating manner and below the second housing, and the upper lens coaxial with the glazing window is disposed in the second housing.

Further, in a preferred embodiment of the present utility model, the second optical device further includes a light-transmitting plate, a light-transmitting hole is formed in the light-transmitting plate, the light-transmitting plate and the light receiver are both disposed in the second housing, the light-transmitting plate is disposed between the light receiver and the upper lens, and the upper light window, the lower light window, the light-transmitting hole and the light receiver are coaxially disposed.

Further, in a preferred embodiment of the present utility model, the pressure adjusting device includes a U-shaped pressure gauge, a tee joint, and a connection pipe connected to the test chamber body, a first interface of the tee joint is connected to the connection pipe, a second interface of the tee joint is connected to the U-shaped pressure gauge, the U-shaped pressure gauge is further electrically connected to the control panel, and the pressure adjusting device is configured to send the signal to the control panel when the U-shaped pressure gauge detects that oxygen in the test chamber is insufficient, and to control the pressure adjusting device to perform automatic pressure relief after the control panel receives the signal.

Further, in a preferred embodiment of the present utility model, the test box further includes a jar, an air inlet pipe of the jar is communicated with the third port of the tee, and the jar is further communicated with the air outlet pipe, so as to convey the flue gas in the test box body to the jar sequentially via the connecting pipe, the tee and the air inlet pipe of the jar.

Further, in a preferred embodiment of the present utility model, the present utility model further includes an illuminometer, the illuminometer includes an illuminometer probe, the illuminometer probe is disposed on an inner sidewall of the test box body and aligned to a center of a fire level dividing line on the sample, and the illuminometer is further connected to the control panel, for monitoring an illuminance at the center of the fire level dividing line in real time and transmitting the illuminance information to the control panel.

Further, in a preferred embodiment of the present utility model, the present utility model further includes a camera, the camera includes a camera probe, the camera probe is disposed on an inner sidewall of the test chamber body and below the illuminometer probe, and the camera probe is aligned to a center of the fire grading marking line, and the camera is further connected with the control panel.

Further, in a preferred embodiment of the present utility model, the door is provided with an openable and closable observation window.

The 45-degree angle automatic combustion detection device comprises a 45-degree angle combustion device and a test box for the 45-degree angle automatic combustion detection, wherein the 45-degree angle combustion device is arranged in the test box body.

The beneficial effects of the utility model are as follows:

1. the utility model relates to a test box for automatic combustion detection at an angle of 45 degrees, which comprises a test box body, a pressure adjusting device, an optical system, a control panel, an air inlet pipe and an air outlet pipe. And black coatings are coated on the inner side walls of the test box body. The optical system is configured such that a vertical parallel light beam formed by the light emitted from the light source passing through the first optical device passes through the test box body in a direction perpendicular to the test box body and passes through the second optical device to be projected to the light receiver, and the light receiver receives the transmittance signal and then transmits the transmittance signal to the data processing system in the control panel, so that the minimum transmittance in the test process can be extracted. According to the utility model, through the combination of the closed test box with the black coating on the inner wall and the vertical parallel light path, the accurate and quantitative test is realized by the sensory judgment of personnel and the horizontal light path in the prior art, so that the feasibility of laboratory precision research establishment is realized.

2. The box door of the test box body is provided with an observation window. The air speed can be controlled to influence combustion flame and the combustion condition of the sample can be observed by combining the sealed test box with the black coating on the inner wall and the observation window.

3. The sealed test box with the black coating on the inner wall is also internally provided with the illuminometer and the camera, and the combination of the illuminometer, the camera and the camera can replace the sensory judgment of personnel and the cotton thread judgment in the prior art to realize rapid, accurate and mechanized detection.

4. The utility model also provides a pressure regulating device. By arranging the pressure regulating device, the volume of the test box can be reduced to one fifth of the original volume, so that the occupied area of equipment is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of the structure of a test chamber for 45 degree automated combustion detection according to a first embodiment of the present utility model at a first viewing angle;

FIG. 2 is a schematic view of the structure of the test chamber for 45 degree automated combustion detection of the first embodiment of the present utility model at a second view angle;

fig. 3 is a schematic structural view of the optical system of the present utility model.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

Referring to fig. 1 to 3, the utility model provides a test box for automatic combustion detection at an angle of 45 degrees, which comprises a test box body 1, a pressure adjusting device 2, an optical system 3, a control panel 4, an air inlet pipe 5 for connecting an air compressor and an air outlet pipe 6 for connecting an air outlet system. The air inlet pipe 5 and the air outlet pipe 6 are respectively communicated with the test box body 1.

Referring to fig. 1 and 2, in the present embodiment, the test chamber body 1 includes a chamber door 11 so as to ignite the 45 ° angle burner 7 after opening and to rapidly close the chamber door 11 after ignition. A viewing window 12 is provided on the door 11 to be opened and closed. The inner side walls of the test box body 1 are all coated with black coatings. Wherein, the black coating is a black coating which is resistant to chemical corrosion, high temperature and easy to clean. The control panel 4, the optical system 3 and the pressure regulating device 2 are all arranged on the test box body 1, and the pressure regulating device 2 and the optical system 3 are respectively connected with the control panel 4. Because the test box is airtight and the inside is coated with the black coating, the observation window 12 on the box door 11 can be opened under the condition that the transmittance is higher than 1 percent, and the irradiation of the fluorescent lamp in the detection chamber has no influence on the detection of the transmittance as long as no strong light is directly emitted. In the absence of combustion, the chamber illuminance is less than 10lux, so the design of the viewing window 12 on the chamber facilitates sample ignition, and observation of afterglow and afterflame.

Referring to fig. 1 and 3, in the present embodiment, the optical system 3 includes a first optical device and a second optical device coaxially arranged in a direction perpendicular to the test chamber body 11. Wherein the first optical device comprises a light source 31 and the second optical device comprises a light receiver 32. Preferably, the light source 31 is a light bulb. The optical system 3 is connected to the control panel 4, and is configured such that a vertical parallel light beam formed by light emitted from the light source 31 passing through the first optical device passes through the test chamber body 11 in a direction perpendicular to the test chamber body 11 and passes through the second optical device to be projected onto the light receiver 32, and the light receiver 32 receives the transmittance signal and transmits the transmittance signal to the data processing system in the control panel 4, so that the minimum transmittance during the test process can be extracted.

Specifically, the first optical device further includes a first housing 33, a lower lens 34, and a lower light window 35. The first housing 33 is provided on the outer side wall of the test chamber body 11 and below the test chamber body 11. The lower light window 35 is disposed on the test chamber body 11 and above the first housing 33. A lower lens 34 and a light source 31 are sequentially provided in the first housing 33 in a direction away from the lower light window 35, and the light source 31, the lower lens 34 and the lower light window 35 are coaxially provided.

The second optical device includes a second housing 36, a light-up window 37, an upper lens 38, and a light-transmitting plate 39, and a light-transmitting hole 391 is formed in the light-transmitting plate 39. The second housing 36 is provided on the outer side wall of the test chamber body 11 and above the test chamber body 11. The glazing window 37 is arranged on the test chamber body 11 in a penetrating way and is positioned below the second housing 36. An upper lens 38, a light-transmitting plate 39, and a light receiver 32 are provided in this order in the second housing 36 in a direction away from the upper light window 37, and the upper light window 37, the lower light window 35, the upper lens 38, the light-transmitting hole 391, and the light receiver 32 are coaxially disposed.

The transmittance in the test box can be detected in real time by designing the optical system 3 on the test box and coating the black coating on the inner side wall of the test box, and the minimum transmittance can be extracted by the data processing system in the control panel 4, so that the smoke grade can be judged in an accurate and quantitative mode instead of artificial sense organs, and the detection repeatability and the inter-laboratory reproducibility can be improved. In addition, the problems that the smoke is deposited downwards (the difference of the smoke transmittance at different heights in the vertical direction is large due to the deposition), the smoke is diffused to the periphery, the smoke release direction caused by different sample burning-through positions is not fixed at a certain position (the position of the smoke deviating from a horizontal light path) and the like are not considered, so that the horizontal light path at the upper end of the sample can only detect the instantaneous transmittance at a certain position, but the total smoke yield cannot be detected. Therefore, the combination design of the vertical parallel light path and the black coating-coated closed test box is more suitable than the traditional horizontal parallel light path. The black coating is coated, the closed test box forms a detection environment with the light transmittance of 0, all the smoke is sealed in the test box, and the smoke in the horizontal direction of the vertical parallel light path is obviously and uniformly dispersed relative to the vertical direction, so that the minimum light transmittance and the total smoke yield which can more reflect the smoke level are obtained.

Referring to fig. 1, in the present embodiment, the pressure adjusting device 2 includes a U-shaped pressure gauge 21, a tee 22, and a connection pipe 23 communicating with the test chamber body 11. The first interface of the tee 22 is connected with a connecting pipe 23, and the second interface is connected with a U-shaped pressure gauge 21. The U-shaped pressure gauge 21 is also electrically connected to the control panel 4, and the pressure regulating device 2 is configured to send a signal to the control panel 4 when the U-shaped pressure gauge 21 detects that the oxygen in the test chamber is insufficient, and to control the pressure regulating device 2 to automatically release pressure after the control panel 4 receives the signal. In the test process, if the sample burns to cause insufficient oxygen in the test box, the pressure can be automatically relieved through the connecting pipe 23, the tee joint 22 and the U-shaped pressure gauge 21, and meanwhile, the air compressor can also convey air in the test box through the air inlet pipe 5. The design of air supply and pressure relief is beneficial to the minimization of the detection space, so that the detection space can reach one fifth of the minimum space requirement of the prior art, namely about 0.2m < 3 >, and the occupied area of equipment can be reduced.

Referring to fig. 1, in this embodiment, the 45 ° angle automated combustion detection apparatus further comprises a jar 8. The air inlet pipe 81 of the jar 8 is communicated with the third port of the tee joint 22. The jar 8 is also in communication with the exhaust duct 6 for delivering flue gas in the test box body 11 to the jar 8 via the connecting duct 23, the tee 22 and the inlet duct 81 of the jar 8 in sequence.

Referring to fig. 1, in the present embodiment, the 45 ° angle automated combustion detection apparatus further includes an illuminometer and a camera. The illuminometer comprises an illuminometer probe 9 and the camera comprises a camera probe 10. Both the illuminometer probe 9 and the camera probe 10 are arranged on the inner side wall of the test box body 11, and the camera probe 10 is positioned below the illuminometer probe 9. Both the illuminometer probe 9 and the camera probe 10 are centered on the fire grade division mark on the sample. The illuminometer is also connected with the control panel 4 for monitoring the illuminance at the center of the fire grading marking in real time and transmitting the illuminance information to the control panel 4. The camera is connected with the control panel 4 for real-time shooting under the control of the control panel 4. The fire level can be accurately and rapidly judged through the combination of the closed test box with the black coating on the inner wall, the illuminometer and the camera.

Referring to fig. 1, in the present embodiment, a display 41, an optical system switch 42, a display switch 43, and a data acquisition system switch 44 are provided on the control panel 4.

Referring to fig. 1, a second embodiment of the present utility model provides a 45 ° angle automated combustion detection apparatus comprising a 45 ° angle combustion device 7 and a test chamber as described above for 45 ° angle automated combustion detection. The 45 ° angle burner 7 is disposed in the test chamber body 11. The 45 ° angle burner 7 comprises a 45 ° angle sample holder 71, an alcohol reservoir 72 and an alcohol holder 73. Wherein the sample is mounted in a 45 ° angle sample holder 71, and an alcohol reservoir 72 is placed on an alcohol holder 73.

To facilitate an understanding of the present utility model, a specific workflow of the present utility model is detailed below.

Before testing, the air inlet pipe 5 on the test box is connected to the air compressor, and the air compressor, the optical system switch 42 and the display screen switch 43 are respectively turned on. After the optical system switch 42 is turned on, the light of the bulb passes through the lower lens 34 and the lower light window 35 to form a vertical parallel light beam. The vertically parallel light beam is then projected onto the light receiver 32 through the upper light window 37, the upper lens 38, and the light transmitting hole 391.

After the test is ready to begin, the 45 ° angle burner 7 is placed in a test box with six black coatings on the six sides that are resistant to chemical corrosion, high temperature and easy to clean, the sample is mounted in a 45 ° sample holder 71, and an alcohol container 72 is placed on a container holder 73. At this point, the rectangular illuminometer probe 9 and the camera probe 10 should be aligned with the center of the fire grading reticle on the sample. The absolute ethyl alcohol is removed from the alcohol container 72, immediately ignited with a small flame, and finally the door 11 is rapidly closed and the data acquisition system switch 44 is opened.

In the sample combustion process, the smoke generated by combustion is continuously diffused in the test box. The light receiver 32 on the vertical parallel light path transmits the transmittance monitored in real time to the display screen 41. After the test is finished, the data processing system in the control panel 4 will extract the minimum transmittance in the whole test process. And then obtaining the smoke grade of the sample according to the uniform smoke grade classification standard (for example, the transmittance is more than or equal to 1% < 7%, the transmittance is generally 7% < 17%, the transmittance is less than 17% < 50%, and the transmittance is less than 50% < 7%) of the industry, so as to realize the quantitative judgment of the smoke grade by replacing the artificial sense organs.

Because the sample is burnt in the closed test box, the flame on the sample can not be influenced by external wind power, and can stably and upwards spread along a nearly vertical route. The inner wall of the chamber is coated with a black coating and the chamber is in a compact state and the illuminance monitored by the illuminometer will reach about 600lux when the flame tip is about 0.5cm from the reticle. The illuminometer will transmit the real-time monitoring signal to the control panel 4 and display on the display screen 41. When the illuminance monitored by the illuminometer exceeds 600lux, the control panel 4 will activate the camera to take a photograph in real time. Wherein, the shooting interval is 1s. When the illuminance is below 600lux, the control panel 4 controls the camera to stop shooting. The photographed photos are stored in the designated folder of the display screen 41, and only if the date column in the folder is continuous and lasting, at most, only 10 photographed photos need to be checked, so that phenomena such as flash, short burning, reburning, continuous burning and the like and corresponding occurrence time can be quickly and accurately determined, and the phenomena of fire intensity and interference caused by the flash and short burning are not needed to be checked in hundreds of photos. In the test process, if the sample burns to cause insufficient oxygen in the test box, the pressure can be automatically relieved through the connecting pipe 23, the tee joint 22 and the U-shaped pressure gauge 21, and meanwhile, the air compressor can also convey air in the test box through the air inlet pipe 5.

After the test is finished, a valve switch between the exhaust pipe 6 and an exhaust system is opened, and the flue gas is discharged into the wide-mouth bottle 8 through the connecting pipe 23, the tee joints and the air inlet pipe 81 of the wide-mouth bottle 8 to remove the flue gas in the test box.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, and various modifications and variations may be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. The utility model provides a test box for 45 angle automation combustion detection, its characterized in that includes test box body, pressure adjusting device, optical system, control panel, is used for connecting the intake pipe of air compressor machine and is used for connecting exhaust system's blast pipe, intake pipe and blast pipe respectively with test box body intercommunication, test box body includes a chamber door, just all scribble black coating on the inside wall of test box body, control panel, optical system and pressure adjusting device all locate on the test box body, just pressure adjusting device and optical system respectively with control panel connects;

the optical system comprises a first optical device and a second optical device which are coaxially arranged along the direction perpendicular to the test box body, the first optical device comprises a light source, the second optical device comprises a light receiver, the optical system is connected with the control panel and is configured such that a vertical parallel light beam formed after light emitted by the light source passes through the first optical device passes through the test box body along the direction perpendicular to the test box body and passes through the second optical device and then is projected to the light receiver, and the light receiver receives a transmittance signal and then transmits the transmittance signal to a data processing system in the control panel so as to extract the minimum transmittance in the test process.

2. The test chamber for automated combustion detection at an angle of 45 ° according to claim 1, wherein the first optical device further comprises a first housing, a lower lens and a lower light window, the first housing is disposed on an outer sidewall of the test chamber body and below the test chamber body, the lower light window is disposed on the test chamber body in a penetrating manner and above the first housing, the lower lens and the light source are sequentially disposed in the first housing in a direction away from the lower light window, and the light source, the lower lens and the lower light window are coaxially disposed.

3. The test chamber for automated 45 ° automated combustion detection of claim 2, wherein the second optical device comprises a second housing, a glazing window and an upper lens, the second housing is disposed on an outer sidewall of the test chamber body and above the test chamber body, the glazing window is disposed on the test chamber body and below the second housing, and the second housing is provided with the upper lens coaxial with the glazing window.

4. The test chamber for automated combustion detection at an angle of 45 ° according to claim 3, wherein said second optical device further comprises a light-transmitting plate, said light-transmitting plate having a light-transmitting hole formed therein, said light-transmitting plate and said light receiver being disposed within said second housing, and said light-transmitting plate being disposed between said light receiver and said upper lens, said upper light window, said lower light window, said light-transmitting hole and said light receiver being disposed coaxially.

5. The test chamber for automated 45 ° angle combustion detection of claim 1, wherein the pressure regulating device comprises a U-shaped pressure gauge, a tee joint, and a connecting tube in communication with the test chamber body, a first interface of the tee joint is connected to the connecting tube, a second interface of the tee joint is connected to the U-shaped pressure gauge, the U-shaped pressure gauge is further electrically connected to the control panel, and the pressure regulating device is configured to send the signal to the control panel when the U-shaped pressure gauge detects an oxygen deficiency in the test chamber, and to control the pressure regulating device to automatically depressurize after the control panel receives the signal.

6. The test chamber for automated 45 ° automated combustion detection of claim 5, further comprising a jar having an air inlet tube in communication with the third port of the tee, the jar further in communication with the air outlet tube for delivering flue gas from the test chamber body to the jar via the connecting tube, tee and air inlet tube of the jar in sequence.

7. The test chamber for automated 45 ° automated combustion detection of claim 1 further comprising an illuminometer probe disposed on an inside wall of the chamber body and aligned with a fire grading reticle center on the sample, the illuminometer further connected to the control panel for monitoring the illuminance at the fire grading reticle center in real time and transmitting illuminance information to the control panel.

8. The test chamber for automated 45 ° automated combustion inspection of claim 7 further comprising a camera, said camera comprising a camera probe, said camera probe being disposed on an inside wall of said chamber body and below said illuminometer probe and aligned with said fire grading reticle center, said camera further being connected to said control panel.

9. The test chamber for automated combustion detection at a 45 degree angle of claim 1 wherein the chamber door is provided with an openable and closable viewing window.

10. An 45 ° angle automated combustion detection apparatus comprising a 45 ° angle combustion device and a test chamber for 45 ° angle automated combustion detection as claimed in any one of claims 1 to 9, said 45 ° angle combustion device being disposed within said test chamber body.

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