Tempering flame flash detection module
By using a combination of a concave mirror and a transparent glass in the temper flame flash detection module, the problem that traditional modules cannot capture low-brightness flame signals is solved, enabling early detection and rapid response, and improving safety.
Patent Information
- Application Number
- CN202520209738.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-11
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2035-02-11
AI Technical Summary
Traditional flashback flame detection modules cannot capture flame flashback signals with low brightness or short duration in a timely and accurate manner, leading to flashback safety accidents.
The combination of a concave mirror and a transparent glass structure focuses the flame light onto the focal point of the photosensitive probe. The brightness is increased by the refraction of the concave mirror, enabling the photosensitive probe to accurately and quickly capture the flame flashing signal.
The sensitivity and accuracy of the optical sensor have been improved, enabling it to quickly cut off the gas supply in the early stages of backfire and prevent the fire from spreading and escalating.
Smart Images
Figure CN223651061U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of combustion safety technology, and in particular to a flashback flame detection module. Background Technology
[0002] A flashback flame detection module is installed in a specially designed dark chamber within a gas pipeline. Its main function is to detect the presence and state of any unexpected flame. The module determines the presence of a flame by sensing the light signal emitted by it. Flashback also occurs when hydrogen-oxygen combustion or the combustion of a mixture with other gases results in a flash of light. However, when the flash is low in brightness or short in duration, the probes of traditional flashback flame detection modules cannot capture the low-brightness or short-duration flash signal in a timely and accurate manner, thus affecting the accuracy and sensitivity of the detection and potentially leading to flashback safety accidents.
[0003] Therefore, it is necessary to improve existing technologies to solve the above problems. Utility Model Content
[0004] The purpose of this invention is to provide a flashback flame detection module, which aims to solve the problem that the probe of the existing flashback flame detection module cannot capture the low-brightness flame flashing signal in a timely and accurate manner, thus leading to flashback safety accidents.
[0005] To achieve the above objectives, this utility model provides a flashback flame detection module, including a tube body, a light-sensing probe, a transparent glass, a reflective concave mirror, a clamping sleeve, and a clamping cover; the reflective concave mirror is disposed inside the tube body, the clamping cover is threaded to the tube body, the clamping cover is provided with a first through hole, the reflective concave mirror is provided with a second through hole and a reflection cavity, the light-sensing probe passes through the first through hole and the second through hole in sequence and enters the reflection cavity and is then locked in the clamping cover, the photosensitive point of the light-sensing probe is located at the focal point of the reflective concave mirror; the transparent glass is disposed inside the tube body, the clamping sleeve is threaded to the inside of the tube body and can press the transparent glass into the inside of the tube body, external light can pass through the through hole of the clamping sleeve and the transparent glass (3) in sequence and then reach the reflective concave mirror, and be focused to its focal point by the reflective concave mirror.
[0006] Furthermore, the tube body is provided with a first inner ring and a second inner ring. The diameter of the first inner ring is larger than the diameter of the second inner ring. The first inner ring and the second inner ring form a mounting flat ring, and the reflecting concave mirror abuts against the mounting flat ring.
[0007] Furthermore, the tube body is also provided with a third inner ring, the diameter of which is larger than that of the second inner ring. The second inner ring and the third inner ring form an installation oblique ring. The diameter of the top surface of the light-transmitting glass is smaller than that of the bottom surface so that the light-transmitting glass forms a mating oblique ring that fits with the installation oblique ring. The mating oblique ring is installed on the installation oblique ring.
[0008] Furthermore, the clamping sleeve is provided with a hexagonal head, and the clamping sleeve is threadedly connected to the third inner ring and abuts against the light-transmitting glass.
[0009] Furthermore, a first clamping washer is provided between the light-transmitting glass and the clamping sleeve.
[0010] Furthermore, a second clamping washer is provided between the clamping cover and the concave mirror.
[0011] Furthermore, the pressure cover is equipped with a locking screw clip, and the photosensitive probe is fitted with a locking screw sleeve. The locking screw sleeve is threadedly connected to the locking screw clip so that the photosensitive probe is clamped by the pressure cover.
[0012] Furthermore, the pipe body is provided with a connecting section, which is located at one end near the clamping sleeve and is provided with external threads.
[0013] The flashback flame detection module provided by this utility model, compared with the prior art, allows the flame light to pass through the transparent glass and enter the concave mirror when flashback occurs. The refraction of the concave mirror can focus the light onto the photodetector. Due to the focusing effect, the brightness is increased, and even the low-brightness flash can be detected by the photodetector. The photodetector can accurately and quickly capture the flame flash signal and provide a signal to the control part, so that the gas source can be quickly cut off in the early stage of flashback, thereby effectively preventing the spread and expansion of the fire and improving the sensitivity and accuracy of the photodetector. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0015] Figure 2 This is a cross-sectional view of the present invention;
[0016] Figure 3 yes Figure 2 A magnified structural diagram of part A in the middle;
[0017] Figure 4 This is a three-dimensional structural diagram of the pressure cap;
[0018] Figure 5 This is a schematic diagram of the three-dimensional structure of a concave mirror.
[0019] Explanation of reference numerals in the attached figures:
[0020] 1. Tube body; 11. First inner ring; 12. Second inner ring; 13. Mounting flat ring; 14. Third inner ring; 15. Mounting oblique ring; 16. Connecting section; 2. Light sensor; 21. Locking screw sleeve; 3. Transparent glass; 31. Matching oblique ring; 4. Reflecting concave mirror; 41. Second through hole; 42. Reflecting cavity; 5. Pressing sleeve; 51. Hexagonal head; 6. Pressing cap; 61. First through hole; 62. Locking screw clamp; 7. First pressing washer; 8. Second pressing washer. Detailed Implementation
[0021] The present invention will be described in detail below with reference to specific embodiments.
[0022] In this utility model, unless otherwise explicitly specified and limited, when terms such as "set in," "connected," or "linked" appear, these terms should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or a connection through one or more intermediate media. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. The directional terms appearing in this utility model are for the purpose of better describing the characteristics of the features and the relationships between them. It should be understood that when the placement direction of this utility model changes, the direction of the characteristics of the features and the relationships between them also changes accordingly. Therefore, directional terms do not constitute an absolute limitation on the characteristics of the features and the relationships between them in space, but only a relative limitation.
[0023] This utility model provides a flashback flame detection module, such as... Figures 1 to 5 As shown, it includes a tube body 1, a light sensor 2, a transparent glass 3, a concave mirror 4, a clamping sleeve 5, and a clamping cap 6. The concave mirror 4 is disposed inside the tube body 1, and the clamping cap 6 is threaded to the tube body 1. The clamping cap 6 has a first through hole 61, and the concave mirror 4 has a second through hole 41 and a reflecting cavity 42. The light sensor 2 passes through the first through hole 61 and the second through hole 41 in sequence into the reflecting cavity 42 and is then locked in the clamping cap 6. The photosensitive point of the light sensor 2 is located at the focal point of the concave mirror 4. The transparent glass 3 is disposed inside the tube body 1, and the clamping sleeve 5 is threaded to the inside of the tube body 1 and can press the transparent glass 3 into the inside of the tube body 1. External light can pass through the through hole of the clamping sleeve 5 and the transparent glass 3 in sequence to the concave mirror 4 and be focused to its focal point by the concave mirror 4.
[0024] Based on the above structural configuration, when backfire occurs, the light from the flame will pass through the transparent glass 3 and enter the concave mirror 4. After refraction by the concave mirror 4, the light can be focused on the photosensitive probe 2. Due to the focusing effect, the brightness is increased, and even the low-brightness flash can be detected by the photosensitive probe 2. The photosensitive probe 2 can accurately and quickly capture the flame flash signal and provide a signal to the control part, so that the gas source can be quickly cut off in the early stage of backfire, thereby effectively preventing the spread and expansion of the fire and improving the sensitivity and accuracy of the photosensitive probe 2.
[0025] In this embodiment, the tube body 1 is provided with a first inner ring 11 and a second inner ring 12. The diameter of the first inner ring 11 is larger than the diameter of the second inner ring 12. The first inner ring 11 and the second inner ring 12 form a mounting flat ring 13, and the reflecting concave mirror 4 abuts against the mounting flat ring 13. The reflecting concave mirror 4 can be directly glued to the mounting flat ring 13 with adhesive, or the reflecting concave mirror 4 can be pressed tightly to the mounting flat ring 13 by the clamping cap 6.
[0026] In this embodiment, the pipe body 1 is further provided with a third inner ring 14, the diameter of which is larger than the diameter of the second inner ring 12. The second inner ring 12 and the third inner ring 14 form an mounting inclined ring 15. The diameter of the top surface of the light-transmitting glass 3 is smaller than the diameter of the bottom surface, so that the light-transmitting glass 3 forms a mating inclined ring 31 that fits with the mounting inclined ring 15. The mating inclined ring 31 is installed on the mounting inclined ring 15. Through the joint cooperation of the mounting inclined ring 15 and the mating inclined ring 31, the installation of the light-transmitting glass 3 is simpler and faster, and it also helps to fix and support the light-transmitting glass 3, thereby improving the stability of the overall structure. Moreover, by using the cooperation of the inclined surfaces, the sealing performance between the light-transmitting glass 3 and the pipe body 1 can be improved, and the sealing requirements can be met after this flash detection module is installed in the fuel gas transmission pipeline.
[0027] In this embodiment, the clamping sleeve 5 is provided with a hexagonal head 51, and the clamping sleeve 5 is threadedly connected to the third inner ring 14 and abuts against the light-transmitting glass 3. The hexagonal head 51 makes it easier to install the clamping sleeve 5 on the third inner ring 14, and the clamping sleeve 5 presses against the light-transmitting glass 3 to ensure sealing, which also makes the installation simpler and the product assembly more efficient.
[0028] In this embodiment, a first clamping washer 7 is provided between the light-transmitting glass 3 and the clamping sleeve 5. The first clamping washer 7 helps to prevent the clamping screw sleeve from directly contacting the light-transmitting glass 3, thus preventing damage to the light-transmitting glass 3 when the clamping screw sleeve clamps the light-transmitting glass 3.
[0029] In this embodiment, a second clamping washer 8 is provided between the clamping cover 6 and the concave mirror 4. When the clamping cover 6 is used to press the concave mirror 4 against the mounting ring 13, the second clamping washer 8 helps to prevent the clamping cover 6 from directly contacting the concave mirror 4, thus preventing damage to the concave mirror 4 when the clamping cover 6 presses against it.
[0030] In this embodiment, the clamping cover 6 is provided with a locking screw clip 62, and the light sensor 2 is fitted with a locking screw sleeve 21. The locking screw sleeve 21 is threadedly connected to the locking screw clip 62 so that the light sensor 2 is clamped by the clamping cover 6. Through the cooperation of the locking screw clip 62 and the locking screw sleeve 21, the installation of the light sensor 2 is easier and the operation is more convenient.
[0031] In this embodiment, the pipe body 1 is provided with a connecting section 16, which is used to connect to the fuel gas conveying pipeline; the connecting section 16 is located at one end near the clamping sleeve 5 and is provided with external threads. The external threads make it easier and faster to connect the pipe body 1 to the fuel gas conveying pipeline.
[0032] In summary, this flashback flame detection module can solve the problem that the probe of the existing flashback flame detection module cannot capture the low-brightness flame flash signal in a timely and accurate manner, thus leading to flashback safety accidents.
[0033] Where there is no conflict, the above embodiments and features can be combined with each other.
[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.
Claims
1. A tempering flame flash detection module, characterized in that: The device includes a tube body (1), a light sensor (2), a transparent glass (3), a concave mirror (4), a clamping sleeve (5), and a clamping cap (6). The concave mirror (4) is located inside the tube body (1), and the clamping cap (6) is threaded to the tube body (1). The clamping cap (6) has a first through hole (61), and the concave mirror (4) has a second through hole (41) and a reflecting cavity (42). The light sensor (2) passes through the first through hole (61) and the second through hole (41) in sequence to enter the tube body (1). The reflective cavity (42) is then locked in place by the pressure cover (6), and the photosensitive point of the light sensor (2) is located at the focal point of the reflective concave mirror (4). The transparent glass (3) is placed inside the tube body (1), and the pressure sleeve (5) is threaded into the inside of the tube body (1) and can press the transparent glass (3) into the inside of the tube body (1). External light can pass through the through hole of the pressure sleeve (5) and the transparent glass (3) in sequence to the reflective concave mirror (4) and be focused by the reflective concave mirror (4) to its focal point.
2. The temper flame flash detection module according to claim 1, characterized in that: The tube body (1) is provided with a first inner ring (11) and a second inner ring (12). The diameter of the first inner ring (11) is larger than the diameter of the second inner ring (12). The first inner ring (11) and the second inner ring (12) form a mounting flat ring (13), and the reflecting concave mirror (4) abuts against the mounting flat ring (13).
3. The tempering flame flash detection module according to claim 2, characterized in that: The tube body (1) is also provided with a third inner ring (14), the diameter of the third inner ring (14) is larger than the diameter of the second inner ring (12), the second inner ring (12) and the third inner ring (14) form an installation oblique ring (15), the top surface diameter of the light-transmitting glass (3) is smaller than the bottom surface diameter so that the light-transmitting glass (3) forms a mating oblique ring (31) that fits with the installation oblique ring (15), and the mating oblique ring (31) is installed on the installation oblique ring (15).
4. The temper flame flash detection module according to claim 3, characterized in that: The clamping sleeve (5) is provided with a hexagonal head (51), and the clamping sleeve (5) is threaded to the third inner ring (14) and abuts against the light-transmitting glass (3).
5. The temper flame flash detection module according to claim 1, characterized in that: A first clamping washer (7) is provided between the light-transmitting glass (3) and the clamping sleeve (5).
6. The temper flame flash detection module according to claim 1, characterized in that: A second clamping washer (8) is provided between the clamping cover (6) and the reflecting concave mirror (4).
7. The tempering flame flash detection module according to claim 1, characterized in that: The pressure cover (6) is provided with a locking screw clip (62), and the light sensor (2) is covered with a locking screw sleeve (21). The locking screw sleeve (21) is threadedly connected to the locking screw clip (62) so that the light sensor (2) is clamped by the pressure cover (6).
8. The temper flame flash detection module according to claim 1, characterized in that: The tube body (1) is provided with a connecting section (16), which is located at one end near the clamping sleeve (5) and is provided with external threads.