Optical fiber UV-curable smoke evacuation device

Abstract

This utility model relates to the field of smoke extraction device technology and discloses a smoke extraction device for fiber optic UV curing. It includes a smoke extraction box, inside which a centrifugal fan is installed. A first smoke guide pipe and a first smoke exhaust pipe are respectively installed on one side and bottom of the smoke extraction box. A second smoke guide pipe and a second smoke exhaust pipe are respectively installed outside the open ports of the first smoke guide pipe and the first smoke exhaust pipe. A first transition pipe is installed between the first and second smoke guide pipes, allowing them to communicate spatially. The second transition pipe is installed between the first and second smoke exhaust pipes via a snap-fit ​​mechanism. This utility model, through the combination of the smoke extraction box, the centrifugal fan, and the air duct formed by the first smoke exhaust pipe, the second smoke exhaust pipe, and the second transition pipe, as well as the air inlet formed by the first smoke guide pipe, the second smoke exhaust pipe, and the first transition pipe, forms a smoke extraction device that can individually and precisely control the air volume extracted from each group of UV lamps.

Description

Technical Field

[0001] This utility model relates to the technical field of smoke exhaust devices, specifically a fiber optic UV-curable smoke exhaust device. Background Technology

[0002] Current fiber optic UV curing systems employ centralized exhaust systems, connected via main ducts to the exhaust ports of UV lamps on each fiber drawing tower. While this generally meets exhaust requirements, its shortcomings have become increasingly apparent over time. Specifically, in the face of large volumes of exhaust gas, exhaust is insufficient, with some lamp exhaust evaporating into the air, severely impacting the workshop environment. This leads to excessive particulate matter, requiring a high level of cleanliness, affecting the quality of the fiber optic products. Furthermore, harmful volatile organic compounds pose health risks to personnel. Controlling the exhaust flow through valves is inaccurate; excessively high or low flow rates negatively affect the coating and curing of the fiber. Oil blockages at valves can also cause exhaust failure. During normal production, the equipment cannot effectively test the oxygen content in the exhaust channels, hindering precise adjustments to the exhaust volume.

[0003] A mismatch between the oxygen content inside the UV lamp and the exhaust volume leads to excessive accumulation of volatiles inside the UV lamp glass tube. This excessive accumulation affects the fiber curing effect and, in severe cases, can directly scratch the fiber, requiring shutdown for cleaning. This not only significantly impacts production efficiency but also accelerates the glass tube replacement cycle. Excessive volatile accumulation can also clog the nitrogen port of the copper connector, causing fiber vibration, which affects the quality of the drawing and coating process and the degree of curing. Furthermore, the accumulated foreign matter adheres to the glass tube, making it difficult to remove and increasing the breakage rate of the glass tube. Therefore, to address the problems of the existing technology, this application provides a fiber optic UV curing exhaust device. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a fiber optic UV curing smoke extraction device, which solves the problems mentioned in the background section.

[0005] This utility model provides the following technical solution: a fiber optic UV curing smoke exhaust device, including a smoke exhaust box, a centrifugal fan is installed inside the smoke exhaust box, and a first smoke guide pipe and a first smoke exhaust pipe are respectively installed on one side and the bottom of the smoke exhaust box. A second smoke guide pipe and a second smoke exhaust pipe are respectively provided outside the open port of the first smoke guide pipe and the open port of the first smoke exhaust pipe. A first transition pipe is installed between the first smoke guide pipe and the second smoke guide pipe to make the space between the first smoke guide pipe and the second smoke guide pipe communicate. The second transition pipe is installed between the first smoke exhaust pipe and the second smoke exhaust pipe by a snap-fit ​​method.

[0006] The top of the second smoke guide pipe away from the smoke exhaust box is fitted with a detection valve pipe. The output direction of the centrifugal fan is towards the air guide channel composed of the first smoke exhaust pipe, the second smoke exhaust pipe, and the second transition pipe. The air intake channel composed of the first smoke guide pipe, the second smoke guide pipe, and the first transition pipe can serve as an extension of the centrifugal fan's flow range. The front end of the smoke exhaust box is equipped with a knob control component that can be electrically connected to the centrifugal fan.

[0007] The detection valve tube has an externally threaded protective cover that seals its own space at its open port. The centrifugal fan has a multi-bladed impeller and uses a 12V power supply. The outer shell and the internal impeller of the centrifugal fan are made of stainless steel and aluminum alloy, respectively. The air volume of the centrifugal fan can be controlled between 0-100m / s.

[0008] Preferably, the end of the first exhaust pipe fitted inside the exhaust box is set as a tapered pipe structure, and the tapered pipe structure divides the bottom space of the exhaust box and forms a tapered flow channel with gradually decreasing guiding space.

[0009] Preferably, the knob control component includes a knob airflow controller and a controller body, and the knob airflow controller can adjust the output airflow of the centrifugal fan.

[0010] Preferably, the first transition pipe includes a first externally threaded pipe, the two ends of which can be respectively snapped and assembled with the corresponding ends of the second smoke guide pipe and the corresponding ends of the first smoke guide pipe. External threads are provided on the end surface of the second smoke guide pipe near the first externally threaded pipe and the end surface of the first smoke guide pipe near the first externally threaded pipe. First internally threaded sleeves are snapped onto the outer sides of both ends of the first externally threaded pipe, and the two first internally threaded sleeves can be respectively screw-locked onto the end surface of the second smoke guide pipe near the first externally threaded pipe and the end surface of the first smoke guide pipe near the first externally threaded pipe.

[0011] In particular, the surfaces of both ends of the first external threaded tube are fixedly fitted with limiting rings, and the two limiting rings can respectively limit the movement of the two first internal threaded sleeves. The snap-fit ​​gap between one end of the first external threaded tube and the corresponding end of the second smoke guide tube and the snap-fit ​​gap between the other end of the first external threaded tube and the corresponding end of the first smoke guide tube are filled with nested first sealing rings.

[0012] Preferably, positioning holes are provided on the end surface of the first exhaust pipe near the second transition pipe and the end surface of the second exhaust pipe near the second transition pipe. The second transition pipe includes a second external threaded pipe, and both ends of the second external threaded pipe are provided with positioning structures that can engage and limit the positioning holes on the end of the first exhaust pipe or the end of the second exhaust pipe.

[0013] The positioning structure consists of a T-shaped rod and a return spring. One end of the T-shaped rod can pass through the inner wall of the end of the second external threaded tube and be engaged in the corresponding positioning hole. The two ends of the return spring are respectively fixed on the surface of the other end of the T-shaped rod and the surface of the corresponding end of the second external threaded tube.

[0014] Specifically, both ends of the second external threaded pipe are threadedly connected to a second internal threaded sleeve. One end of the second internal threaded sleeve is provided with a tapered hole structure, and the inner wall of the tapered hole structure can gradually press and adjust the corresponding T-shaped rod. The joint between the second external threaded pipe and the first exhaust pipe and the joint between the second external threaded pipe and the second exhaust pipe are both filled with a second sealing ring.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. This utility model consists of an independent smoke exhaust body composed of a smoke exhaust box and a centrifugal fan. After being further combined with the air guide channel composed of the first smoke exhaust pipe, the second smoke exhaust pipe, and the second transition pipe, and the air intake channel composed of the first smoke guide pipe, the second smoke guide pipe, and the first transition pipe, the smoke exhaust device formed can accurately control the amount of air drawn from each group of UV lamps.

[0017] 2. The centrifugal fan in this utility model uses a 12V power supply, and the air volume can be controlled between 0-100m / s. The wind speed can be adjusted according to the actual production situation. The centrifugal fan is small in size and easy to install in the pipeline. Its internal structure is usually a multi-blade impeller, which can generate a high speed in a small size to improve the exhaust efficiency. The centrifugal fan runs smoothly and has low noise, which will not cause too much noise interference to the pipeline environment and can keep the operation relatively quiet.

[0018] 3. The centrifugal fan designed in this utility model has excellent starting performance. It generally adopts capacitor starting or direct starting methods, which can start quickly and reach the rated speed, thus quickly starting the exhaust work. Secondly, it has a long service life. The centrifugal fan is made of aluminum alloy impeller and stainless steel shell, which has good corrosion resistance and wear resistance, and can operate stably for a long time. In addition, when used in combination with the knob control component, the output speed of the centrifugal fan can be easily adjusted by simply rotating the knob air volume controller inside the knob control component. The operation is convenient and quick, without complicated steps.

[0019] 4. This utility model sets up a first transition pipe and a second transition pipe as transition connection conditions, which can ensure that the first smoke guide pipe and the second smoke guide pipe, the first exhaust pipe and the first transition pipe are used together, while also maintaining the convenience of installation and disassembly of the first smoke guide pipe and the second smoke guide pipe, the first exhaust pipe and the first transition pipe during inspection. The downward outlet of the whole device helps to better exhaust the oil fumes and prevent the accumulation of oil fumes. Attached Figure Description

[0020] Figure 1 This is a partial cross-sectional view of the structure of this utility model;

[0021] Figure 2 This is a three-dimensional schematic diagram of the structure of this utility model;

[0022] Figure 3 This is a front view schematic diagram of the structure of this utility model;

[0023] Figure 4 The structure of this utility model Figure 1 Enlarged view of point A in the middle;

[0024] Figure 5 The structure of this utility model Figure 1 Enlarged diagram of point B in the middle.

[0025] In the diagram: 1. Smoke exhaust box; 2. Centrifugal fan; 3. First smoke guide pipe; 4. First smoke exhaust pipe; 5. Second smoke guide pipe; 6. Second smoke exhaust pipe; 7. First transition fitting; 71. First external threaded pipe; 72. First internal threaded sleeve; 73. First sealing ring; 8. Second transition fitting; 81. Second external threaded pipe; 82. T-shaped rod; 83. Return spring; 84. Second internal threaded sleeve; 85. Second sealing ring; 9. Detection valve pipe; 10. Knob control assembly. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-3The fiber optic UV curing smoke exhaust device includes a smoke exhaust box 1, inside which a centrifugal fan 2 is installed. The centrifugal fan 2 has a multi-blade impeller and uses a 12V power supply. The outer shell and the internal impeller of the centrifugal fan 2 are made of stainless steel and aluminum alloy, respectively. The air volume of the centrifugal fan 2 can be controlled between 0-100m / s, and the wind speed can be adjusted according to the actual production situation. A first smoke guide pipe 3 and a first smoke exhaust pipe 4 are respectively installed on one side and bottom of the smoke exhaust box 1. A second smoke guide pipe 5 and a second smoke exhaust pipe 6 are respectively installed outside the open port of the first smoke guide pipe 3 and the open port of the first smoke exhaust pipe 4. A first transition pipe 7 is installed between the first smoke guide pipe 3 and the second smoke guide pipe 5 to allow the space between the first smoke guide pipe 3 and the second smoke guide pipe 5. A second transition pipe 8 is installed between the first smoke exhaust pipe 4 and the second smoke exhaust pipe 6 by a snap-fit ​​method.

[0028] The top of the second smoke guide pipe 5, away from the smoke exhaust box 1, is fitted with a detection valve pipe 9. The output direction of the centrifugal fan 2 faces the air guide channel composed of the first smoke exhaust pipe 4, the second smoke exhaust pipe 6, and the second transition pipe 8. The end of the first smoke exhaust pipe 4, which is fitted inside the smoke exhaust box 1, is set as a tapered pipe structure. The tapered pipe structure divides the bottom space of the smoke exhaust box 1 and forms a tapered flow channel with a gradually decreasing guide space, thereby further improving the output guide effect of the centrifugal fan 2. The air intake channel composed of the first smoke guide pipe 3, the second smoke guide pipe 5, and the first transition pipe 7 can serve as an extension of the guide range of the centrifugal fan 2. The front end of the smoke exhaust box 1 is equipped with a knob control component 10 that can be electrically connected to the centrifugal fan 2. The knob control component 10 includes a knob air volume controller and a controller body. The knob air volume controller can adjust the output air volume of the centrifugal fan 2. The open port of the detection valve pipe 9 is externally threaded with a protective cover that seals its own space, thereby ensuring the sealing effect of the detection valve pipe 9 during idle periods.

[0029] During normal production, the centrifugal fan 2 is turned on, and the multi-blade impeller inside the centrifugal fan 2 accelerates the air inside the exhaust box 1. The accelerated air is then automatically output through the air guide channel composed of the first exhaust pipe 4, the second exhaust pipe 6, and the second transition pipe 8, thereby creating a negative pressure effect inside the exhaust box 1. Then, the waste smoke output from the exhaust port of the UV lamp group of the existing wire drawing tower line corresponding to the whole device will be actively attracted into the interior of the exhaust box 1 through the air intake channel composed of the first smoke guide pipe 3, the second smoke guide pipe 5, and the first transition pipe 7, and then transported through the air guide channel to fully ensure the smoke exhaust and transportation effect.

[0030] Subsequently, when it is necessary to adjust the air delivery power of the centrifugal fan 2, simply turn the knob control component 10 to directly adjust the air volume controller. When it is necessary to test the oxygen content in the air intake channel, turn out the sealing cover covering the open port of the detection valve pipe 9 to open the valve inside the detection valve pipe 9, thereby diverting part of the gas delivered in the air intake channel for testing, which is beneficial for testing the relevant parameters of the UV lamp operation.

[0031] Please see Figures 1-4 The first transition pipe 7 includes a first external threaded pipe 71. Both ends of the first external threaded pipe 71 can be snapped and assembled with the corresponding ends of the second smoke guide pipe 5 and the first smoke guide pipe 3, respectively. The end surface of the second smoke guide pipe 5 near the first external threaded pipe 71 and the end surface of the first smoke guide pipe 3 near the first external threaded pipe 71 are both provided with external threads. The outer sides of both ends of the first external threaded pipe 71 are snapped with first internal threaded sleeves 72, and the two first internal threaded sleeves 72 can be screwed and locked onto the end surface of the second smoke guide pipe 5 near the first external threaded pipe 71 and the end surface of the first smoke guide pipe 3 near the first external threaded pipe 71, respectively.

[0032] Limiting rings are fixedly fitted on both ends of the first external threaded tube 71, and the two limiting rings can limit the movement of the two first internal threaded sleeves 72 respectively. The snap-fit ​​gap between one end of the first external threaded tube 71 and the corresponding end of the second smoke guide tube 5 and the snap-fit ​​gap between the other end of the first external threaded tube 71 and the corresponding end of the first smoke guide tube 3 are filled with nested first sealing rings 73.

[0033] During use, considering the maintenance and cleaning issues of the first smoke guide pipe 3, the second smoke guide pipe 5, and the first transition pipe 7 after long-term use, the detachable structure of the first transition pipe 7 ensures the convenience of installing and disassembling the first smoke guide pipe 3 and the second smoke guide pipe 5. The specific operation is as follows:

[0034] By sequentially rotating the two first internal threaded sleeves 72, both first internal threaded sleeves 72 are moved in a similar spiral direction toward the center of the first external threaded tube 71. This causes the two first internal threaded sleeves 72 to disengage from the first smoke guide tube 3 and the second smoke guide tube 5, respectively. Then, the second smoke guide tube 5 and the first transition tube 7 are directly separated, which makes room for cleaning the first smoke guide tube 3, the second smoke guide tube 5, and the first transition tube 7, thus meeting the cleaning and maintenance needs.

[0035] Please see Figures 1-3 , Figure 5Positioning holes are provided on the end surface of the first exhaust pipe 4 near the second transition pipe 8 and the end surface of the second exhaust pipe 6 near the second transition pipe 8. The second transition pipe 8 includes a second external threaded pipe 81, and both ends of the second external threaded pipe 81 are provided with positioning structures that can engage and limit the positioning holes on the end of the first exhaust pipe 4 or the end of the second exhaust pipe 6.

[0036] The positioning structure consists of a T-shaped rod 82 and a return spring 83. One end of the T-shaped rod 82 can pass through the inner wall of the end of the second external threaded tube 81 and be engaged in the corresponding positioning hole. The two ends of the return spring 83 are respectively fixed on the surface of the other end of the T-shaped rod 82 and the surface of the corresponding end of the second external threaded tube 81.

[0037] Both ends of the second external threaded pipe 81 are externally threaded with a second internal threaded sleeve 84. One end of the second internal threaded sleeve 84 is provided with a tapered hole structure, and the inner wall of the tapered hole structure can gradually press and adjust the corresponding T-shaped rod 82. The assembly gap between the second external threaded pipe 81 and the first exhaust pipe 4 and the assembly gap between the second external threaded pipe 81 and the second exhaust pipe 6 are both filled with a second sealing ring 85.

[0038] In use, considering the inspection and maintenance of the first exhaust pipe 4, the second exhaust pipe 6, and the second transition pipe 8, the requirements can be met by adjusting the movable structure inside the second transition pipe 8, as follows:

[0039] Tighten the two second internal threaded sleeves 84 in sequence, and then move the two second internal threaded sleeves 84 away from the first exhaust pipe 4 and the second exhaust pipe 6 respectively. After completion, pull the T-shaped rods 82 corresponding to the first exhaust pipe 4 and the second exhaust pipe 6 in sequence, so that the T-shaped rods 82 are moved out of the corresponding positioning holes. Then, completely release the limiting effect of the second transition pipe 8 on the first exhaust pipe 4 and the second exhaust pipe 6. Then, directly separate the first exhaust pipe 4, the second exhaust pipe 6 and the second transition pipe 8 and clean them to avoid the accumulation of oil fumes.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Additionally, in the accompanying drawings of this utility model, the fill patterns are merely for distinguishing layers and do not constitute any other limitation.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fiber optic UV curing fume extraction device, comprising a fume extraction chamber (1), characterized in that: The smoke exhaust box (1) is equipped with a centrifugal fan (2), and a first smoke guide pipe (3) and a first smoke exhaust pipe (4) are respectively installed on one side and the bottom of the smoke exhaust box (1). A second smoke guide pipe (5) and a second smoke exhaust pipe (6) are respectively provided outside the open port of the first smoke guide pipe (3) and the open port of the first smoke exhaust pipe (4). A first transition pipe (7) is installed between the first smoke guide pipe (3) and the second smoke guide pipe (5) to allow the space between the first smoke guide pipe (3) and the second smoke guide pipe (5). A second transition pipe (8) is installed between the first smoke exhaust pipe (4) and the second smoke exhaust pipe (6) by means of a snap fastener. The second smoke guide pipe (5) is fitted with a detection valve pipe (9) at the top of the end away from the smoke exhaust box (1). The output direction of the centrifugal fan (2) is towards the air guide channel composed of the first smoke exhaust pipe (4), the second smoke exhaust pipe (6), and the second transition pipe (8). The air intake channel composed of the first smoke guide pipe (3), the second smoke guide pipe (5), and the first transition pipe (7) can serve as an extension of the flow range of the centrifugal fan (2). The front end of the smoke exhaust box (1) is equipped with a knob control component (10) that can be electrically connected to the centrifugal fan (2).

2. The fiber optic UV-curable smoke extraction device according to claim 1, characterized in that: The open port of the detection valve tube (9) is externally threaded with a protective cover that seals its own space. The centrifugal fan (2) is equipped with a multi-bladed impeller and uses a 12V power supply. The outer shell material and the internal impeller material of the centrifugal fan (2) are stainless steel and aluminum alloy, respectively. The air volume of the centrifugal fan (2) is controlled at 0-100m / s.

3. The fiber optic UV-curable smoke extraction device according to claim 1, characterized in that: The end of the first exhaust pipe (4) fitted inside the exhaust box (1) is set as a tapered pipe structure, and the tapered pipe structure divides the bottom space of the exhaust box (1) and forms a tapered flow channel with gradually decreasing guiding space.

4. The fiber optic UV-curable smoke extraction device according to claim 1, characterized in that: The knob control assembly (10) includes a knob airflow controller and a controller body, and the knob airflow controller can adjust the output airflow of the centrifugal fan (2).

5. The fiber optic UV-curable smoke extraction device according to claim 1, characterized in that: The first transition pipe (7) includes a first external threaded pipe (71). The two ends of the first external threaded pipe (71) can be snapped and assembled with the corresponding ends of the second smoke guide pipe (5) and the first smoke guide pipe (3), respectively. The end surface of the second smoke guide pipe (5) near the first external threaded pipe (71) and the end surface of the first smoke guide pipe (3) near the first external threaded pipe (71) are both provided with external threads. The outer sides of both ends of the first external threaded pipe (71) are snapped with first internal threaded sleeves (72), and the two first internal threaded sleeves (72) can be screwed and locked onto the end surface of the second smoke guide pipe (5) near the first external threaded pipe (71) and the end surface of the first smoke guide pipe (3) near the first external threaded pipe (71), respectively.

6. The fiber-optic UV-curable smoke extraction device according to claim 5, characterized in that: Limiting rings are fixedly sleeved on both ends of the first external threaded tube (71), and the two limiting rings can respectively limit the movement of the two first internal threaded sleeves (72). The snap-fit ​​gap between one end of the first external threaded tube (71) and the corresponding end of the second smoke guide tube (5) and the snap-fit ​​gap between the other end of the first external threaded tube (71) and the corresponding end of the first smoke guide tube (3) are filled with nested first sealing rings (73).

7. The fiber-optic UV-curable smoke extraction device according to claim 1, characterized in that: Positioning holes are provided on the end surface of the first exhaust pipe (4) near the second transition pipe (8) and the end surface of the second exhaust pipe (6) near the second transition pipe (8). The second transition pipe (8) includes a second external threaded pipe (81), and both ends of the second external threaded pipe (81) are provided with positioning structures that can engage and limit the positioning holes on the end of the first exhaust pipe (4) or the end of the second exhaust pipe (6). The positioning structure consists of a T-shaped rod (82) and a return spring (83). One end of the T-shaped rod (82) can pass through the inner wall of the end of the second external threaded tube (81) and be engaged in the corresponding positioning hole. The two ends of the return spring (83) are respectively fixed on the surface of the other end of the T-shaped rod (82) and the surface of the corresponding end of the second external threaded tube (81).

8. The fiber-optic UV-curable smoke extraction device according to claim 7, characterized in that: Both ends of the second external threaded pipe (81) are externally threaded with a second internal threaded sleeve (84). One end of the second internal threaded sleeve (84) is provided with a tapered hole structure, and the inner wall of the tapered hole structure can gradually press and adjust the corresponding T-shaped rod (82). The assembly gap between the second external threaded pipe (81) and the first exhaust pipe (4) and the assembly gap between the second external threaded pipe (81) and the second exhaust pipe (6) are filled with a second sealing ring (85).

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