Intelligent detection device based on optical fiber array

Abstract

The invention discloses an intelligent detection device based on an optical fiber array, and belongs to the technical field of gas detection.The detection device comprises a detection box body, a detection assembly, a shielding assembly and a movable assembly, and the detection assembly is movably installed at a port in one side of the detection box body based on the movable assembly; the shielding assembly is movably installed at the other port of the side, provided with the detection assembly, of the detection box body. The detection assembly comprises a laser, an optical circulator, a light splitting collimation module assembly and an array optical fiber, the laser is fixedly connected with a first port of the optical circulator, a second port of the optical circulator abuts against one side of the light splitting collimation module assembly, and the other side of the light splitting collimation module assembly abuts against the array optical fiber. The laser, the array optical fiber and other components are integrated into the detection assembly, the effect that after the array optical fiber is cleaned, the alignment position of the array optical fiber does not need to be repeatedly adjusted is achieved, and the advantages that the detection assembly is convenient to install and easy to operate are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of gas detection, and in particular to an intelligent detection device based on an optical fiber array. Background Art

[0002] Tunable laser absorption spectroscopy (TDLAS) is a technology based on the narrow linewidth characteristics of tunable semiconductor lasers. It achieves high-precision gas detection by scanning the specific absorption lines of gas molecules. Its core principle follows the Lambert-Beer law, which states that the absorption intensity of light when passing through a gas is proportional to the gas concentration and the optical path length. Currently, this technology has been widely used in many fields such as hazardous gas detection, greenhouse gas emission measurement, and gas leak monitoring.

[0003] Although TDLAS technology has been widely used in industrial process control, environmental atmosphere monitoring, and hazardous gas leak warning, its intelligent detection device still has the following shortcomings:

[0004] 1. Optical contamination maintenance is highly complex. The fiber end face inside the detection chamber window will be contaminated by the detection gas, which will cause the laser light intensity emitted by the fiber to attenuate, requiring frequent cleaning of the fiber end face. However, after cleaning, the alignment position of the array fiber must be repeatedly adjusted to ensure the alignment accuracy between the array fiber and the laser.

[0005] 2. Most current gas detection devices can only detect single gases and cannot detect multi-component gases. Summary of the Invention

[0006] In order to solve the problems mentioned in the above background technology, the present invention provides an intelligent detection device based on an optical fiber array. The technical solution adopted by the present invention is as follows:

[0007] An intelligent detection device based on an optical fiber array includes a detection box, a detection component, a shielding component, and a movable component. The detection component is movably mounted on a port on one side of the detection box based on the movable component, and the shielding component is movably mounted on another port on the side of the detection box where the detection component is located.

[0008] The detection component includes a laser, an optical circulator, a splitter collimator mode component and an array optical fiber. The laser is fixedly connected to the first port of the optical circulator, the second port of the optical circulator abuts one side of the splitter collimator mode component, and the array optical fiber is abutted on the other side of the splitter collimator mode component.

[0009] Furthermore, the detection component also includes a base plate, a sealing plate and a partition are fixedly provided on one side of the top of the base plate, the laser and the optical circulator are fixedly provided inside the assembly formed by the sealing plate and the partition, the second port of the optical circulator passes through the bottom of the partition and abuts against the spectroscopic collimation mode assembly on the other side of the partition; a plurality of V-grooves are provided on the top of the base plate away from the sealing plate, and the array optical fiber is arrayed on the single V-groove.

[0010] Furthermore, the detection box includes an upper detection air chamber and a lower cleaning chamber, and the detection assembly and the shielding assembly are movably installed on the ports on one side of the detection air chamber and the cleaning chamber respectively; a first air inlet valve and an air discharge valve connected to the detection air chamber are provided on the top of the detection box, and a second air inlet valve and an air discharge valve are provided at the lower part of the detection box away from the port side; a plurality of first air inlet parts are provided at the top end of the interior of the detection air chamber, and the first air inlet parts are connected to the first air inlet valve; a plurality of second air inlet parts are provided at the top end of the interior of the cleaning chamber, and the second air inlet parts are connected to the second air inlet valve.

[0011] Furthermore, a reflective mirror group is fixedly provided on a side of the detection chamber away from the detection component, and the reflective mirror group is also provided between the partition of the detection component and the spectroscopic collimation module.

[0012] Furthermore, a built-in slide rail is provided at the top of the cleaning chamber, and one end of the telescopic rod is slidably connected to the built-in slide rail. A ball joint is provided at one end of the telescopic rod, and a cleaning air nozzle, a cleaning part and a visual collection part are integrated on the ball joint.

[0013] Furthermore, the movable component includes external slide rails arranged on opposite sides of the outer surface of the detection box, a slider is slidably installed in the external slide rail, the slider is fixedly connected to one end of the transmission rod, and the sealing plate of the detection component is fixedly installed with a connecting piece on the side corresponding to the external slide rail, and the transmission rod is fixedly connected to the connecting piece at one end away from the slider.

[0014] Furthermore, the external slide rails on opposite sides of the outer surface of the detection box are set to be C-shaped, the upper position of the C-shaped external slide rail corresponds to the detection air chamber of the detection box, and the lower position of the C-shaped external slide rail corresponds to the cleaning cavity of the detection box.

[0015] Furthermore, the shielding assembly includes a lifting slot arranged at the port of the detection box, a shielding door is slidably arranged on the lifting slot, a plurality of first electromagnets are arranged in the detection box on the side of the lifting slot close to the port, and a plurality of second electromagnets are arranged in the detection box on the side of the lifting slot away from the port.

[0016] The intelligent detection device based on the optical fiber array of the present invention has at least one of the following beneficial effects:

[0017] 1. By integrating the laser and the optical fiber array and other components into a detection component, it is achieved that after the optical fiber array is cleaned, there is no need to repeatedly adjust the alignment position of the optical fiber array, avoiding repeated and tedious alignment operations while also having the advantages of easy installation and simple operation of the detection component.

[0018] 2. By arranging an array of optical fibers in a plurality of V-grooves, and transmitting the laser light emitted by the laser to the array optical fiber after passing through a beam splitting collimator module, the laser light with multiple pulse widths is used to simultaneously detect gases, thereby achieving the effect of multi-component gas detection in a single device.

[0019] 3. By arranging the detection air chamber and the cleaning cavity in layers in the detection box, and based on the structure of the movable component movably connecting the detection component, the movable component can be movably installed in the detection air chamber or the cleaning cavity, which solves the problem of needing to disassemble the detection component for array optical fiber end face cleaning after traditional gas detection operation. It has the advantages of convenience and no need for disassembly.

[0020] 4. A lifting slot is set at the port of the detection box, and a first electromagnet and a second electromagnet are respectively set on both sides of the lifting slot. A shielding door structure is movably installed in the lifting slot, which realizes the magnetic attraction of the sealing plate of the detection component based on the first electromagnet. While reinforcing the sealing installation effect of the sealing plate, it realizes the effect of driving the shielding door based on the first electromagnet and the second electromagnet, thereby ensuring that the chamber without the detection component installed is in a sealed state, avoiding the problem of the chamber being contaminated by the external environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of an intelligent detection device based on an optical fiber array according to the present invention;

[0022] Figure 2 This is a schematic diagram of a first three-dimensional structure of the detection component of the present invention in an intermediate state of movement;

[0023] Figure 3 A second three-dimensional structural diagram of the detection component of the present invention in an intermediate state of movement;

[0024] Figure 4 Schematic diagram of the three-dimensional structure of the detection component of the present invention;

[0025] Figure 5 For the present invention Figure 4 Schematic diagram of the cross-sectional structure of the detection component corresponding to the CC line;

[0026] Figure 6It is a schematic diagram of the three-dimensional structure of the detection box of the present invention;

[0027] Figure 7 For the present invention Figure 4 Schematic diagram of the cross-sectional structure of the detection box corresponding to the AA line;

[0028] Figure 8 For the present invention Figure 4 Schematic diagram of the partial cross-section structure of the detection box corresponding to the center line BB.

[0029] Among them, 1. Detection box; 101. Detection air chamber; 102. Cleaning chamber; 111. First air inlet valve; 112. First air inlet component; 113. Air discharge valve; 114. Mirror assembly; 121. Built-in slide rail; 122. Telescopic rod; 123. Ball joint; 124. Cleaning nozzle; 125. Cleaning component; 126. Visual acquisition component; 127. Second air inlet component; 128. Second air inlet valve; 129. Exhaust valve; 2. Detection assembly; 201. Bottom plate; 20 2. Sealing plate; 203. Partition; 204. Laser; 205. Optical circulator; 206. First port; 207. Second port; 208. Spectral alignment module; 209. V-groove; 210. Optical fiber array; 3. Shielding module; 301. Lifting slot; 302. Shielding door; 303. First electromagnet; 304. Second electromagnet; 4. Movable module; 401. External slide rail; 402. Slider; 403. Transmission rod; 404. Connector. DETAILED DESCRIPTION

[0030] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0031] like Figure 1-5 As shown, an intelligent detection device based on an optical fiber array includes a detection box 1, a detection component 2, a shielding component 3 and a movable component 4. The detection component 2 is movably mounted on a port on one side of the detection box 1 based on the movable component 4, and the shielding component 3 is movably mounted on another port on the side of the detection box 1 where the detection component 2 is provided.

[0032] The detection component 2 includes a laser 204, an optical circulator 205, a splitter collimator mode component 208 and an array optical fiber 210. The laser 204 is fixedly connected to the first port 206 of the optical circulator 205, the second port 207 of the optical circulator 205 abuts one side of the splitter collimator mode component 208, and the array optical fiber 210 is abutted on the other side of the splitter collimator mode component 208.

[0033] In this embodiment, the laser 204 is arranged in an array and is used to emit lasers of different wavelengths corresponding to different gases. The beam splitting and collimating mode component 208 is a component that is compositely packaged with a micro-dichroic mirror and a micro-lens array. The array optical fiber 210 is integrated with a micro-lens for focusing at the port away from the laser 204. When the detection component 2 is movably installed on the upper port of the detection box 1, the laser 204 of the detection component 2 generates lasers of different pulses and emits them from the first port 206 to the optical circulator 205, and is transmitted from the second port 207 of the optical circulator 205 to the beam splitting and collimating mode component 208. The beam splitting and collimating mode component 208 combines and collimates the divergent lasers into parallel beams and aligns them with the array optical fiber 210. The collimated laser The laser beam is emitted from the optical fiber array 210 to the interior of the detection box 1 to detect the gas to be detected. After the detection is completed, the laser beam becomes a return light signal and is focused by the microlens integrated at the port of the optical fiber array 210, thereby effectively recovering the divergent return light signal. The focused return light signal is then emitted from the port of the optical fiber array 210 and transmitted to the optical splitting and collimating mode component 208. The micro dichroic mirror compositely packaged in the optical splitting and collimating mode component 208 first separates and mixes the return light signals according to wavelength, and collimates the divergent return light signals into parallel beams and focuses them on the second port 207 of the optical circulator 205 so that they enter the optical circulator 205, and finally transmitted from the remaining ports of the optical circulator 205 to the external detector for processing.

[0034] When the gas detection is completed and the optical fiber port needs to be cleaned, the movable component 4 drives the detection component 2 to move from the upper port to the lower port of the detection box 1. When the detection component 2 completely leaves the upper port position of the detection box 1 and moves to the lower port position, the shielding component 3 of the lower port is synchronously moved to the upper port for sealing. After the detection component 2 is installed at the lower port, the port cleaning operation of the array optical fiber 210 is performed in the detection box 1.

[0035] By integrating the laser 204 with the array optical fiber 210 and other components into the detection component 2, it is achieved that after the array optical fiber 210 is cleaned, there is no need to repeatedly adjust the alignment position of the array optical fiber 210, thereby avoiding repetitive and tedious alignment operations, and also having the advantages of easy installation and simple operation of the detection component 2.

[0036] like Figure 4-5As shown, in one embodiment, the detection component 2 also includes a base plate 201, a sealing plate 202 and a partition 203 are fixedly provided on one side of the top of the base plate 201, the laser 204 and the optical circulator 205 are fixedly provided inside the assembly formed by the sealing plate 202 and the partition 203, the second port 207 of the optical circulator 205 passes through the bottom of the partition 203 and abuts against the splitting collimation mode assembly 208 on the other side of the partition 203; a plurality of V-grooves 209 are provided on the top of the base plate 201 away from the sealing plate 202, and the array optical fiber 210 is arrayed on the single V-groove 209.

[0037] In this embodiment, when the detection component 2 is fixedly installed at the upper port of the detection box 1, the sealing plate 202 is used to seal and isolate the internal space of the detection box 1 from the external environment, and the partition 203 is used to seal and isolate the space of the detection box 1 filled with the gas to be detected from the internal space of the detection component 2, and the V-groove 209 is used to position and limit the array optical fiber 210; by sealing and isolating the components that do not necessarily contact the gas to be detected based on the partition 203, such components are prevented from being contaminated and the leakage of the gas to be detected is prevented, thereby ensuring the accuracy of the detection results and avoiding the problem of possible atmospheric pollution.

[0038] like Figure 6-7 As shown, in one embodiment, the detection box 1 includes an upper detection air chamber 101 and a lower cleaning chamber 102, and the detection component 2 and the shielding component 3 are movably installed on the ports on one side of the detection air chamber 101 and the cleaning chamber 102 respectively; a first air inlet valve 111 and an air discharge valve 113 connected to the detection air chamber 101 are provided on the top of the detection box 1, and a second air inlet valve 128 and an exhaust valve 129 are provided at the lower part of the detection box 1 away from the port side; a plurality of first air inlet parts 112 are provided at the top of the detection air chamber 101, and the first air inlet parts 112 are connected to the first air inlet valve 111; a plurality of second air inlet parts 127 are provided at the top of the cleaning chamber 102, and the second air inlet parts 127 are connected to the second air inlet valve 128.

[0039] In this embodiment, before performing the gas detection operation, the gas to be detected enters the detection chamber 101 from the first air inlet valve 111 through the first air inlet part 112, and the inert gas in the detection chamber 101 is discharged from the air release valve 113 and collected; after completing the gas detection operation, the inert gas enters the detection chamber 101 from the first air inlet valve 111 through the first air inlet part 112, and the gas to be detected in the detection chamber 101 is discharged from the air release valve 113 and collected; when it is necessary to discharge the gas in the detection chamber 101, in order to ensure that the internal gas is completely emptied, the first air inlet part 112 is controlled to start intake from a position away from the air release valve 113, and the first air inlet part 112 close to the air release valve 113 is gradually started, thereby ensuring that the internal gas of the detection chamber 101 can be completely discharged through the air release valve 113.

[0040] Before cleaning the detection component 2 in the cleaning chamber 102, inert gas is introduced into the cleaning chamber 102 from the second air inlet valve 128 via the second air inlet member 127, thereby exhausting the air in the cleaning chamber 102; during the cleaning operation, the drain valve 129 discharges the waste liquid and waste gas in the cleaning chamber 102 for centralized treatment.

[0041] like Figure 5-6 As shown, in one embodiment, a reflective mirror group 114 is fixedly provided on a side of the detection chamber 101 away from the detection component 2 , and the reflective mirror group 114 is also provided between the partition 203 of the detection component 2 and the spectroscopic collimation module 208 .

[0042] In this embodiment, by using the reflective mirror group 114 to form a multi-reflection light path, the laser light entering the detection gas chamber 101 is reflected multiple times by the reflective mirror groups 114 at both ends of the detection gas chamber 101, thereby ensuring complete detection of the gas.

[0043] like Figure 6 As shown, in one embodiment, a built-in slide rail 121 is provided at the top of the cleaning chamber 102, and one end of a telescopic rod 122 is slidably connected to the built-in slide rail 121. A ball joint 123 is provided at one end of the telescopic rod 122, and a cleaning air nozzle 124, a cleaning part 125 and a visual acquisition part 126 are integrated on the ball joint 123.

[0044] In this embodiment, the ball joint 123 and the cleaning air nozzle 124, cleaning part 125 and visual acquisition part 126 thereon are integrated into a cleaning component. The horizontal movement of the integrated component is achieved based on the built-in slide rail 121, the vertical movement of the integrated component is achieved based on the telescopic rod 122, the horizontal rotation of the cleaning component is achieved based on the rotation of the ball joint 123, and data collection of the end face of the array optical fiber 210 is achieved based on the visual acquisition part 126, so as to identify the type and degree of contamination on the end face of the array optical fiber 210, and use different types of cleaning agents to clean the end face of the array optical fiber 210 based on the cleaning part 125; after completing the cleaning operation with the cleaning agent, the cleaning air nozzle 124 is aligned with the end face of the array optical fiber 210 based on the rotation of the ball joint 123 to perform an inert gas purging and drying operation.

[0045] like Figure 1-4 and Figure 7 As shown, in one embodiment, the movable component 4 includes an external slide rail 401 arranged on opposite sides of the outer surface of the detection box 1, a slider 402 is slidably installed in the external slide rail 401, and the slider 402 is fixedly connected to one end of a transmission rod 403. The sealing plate 202 of the detection component 2 is fixedly installed with a connecting piece 404 on the side corresponding to the external slide rail 401, and the transmission rod 403 is fixedly connected to the connecting piece 404 at one end away from the slider 402.

[0046] In this embodiment, sensors are provided at the two turning points of the external slide rail 401, which are used to detect the position of the slider 402; the slider 402 slides on the external slide rail 401, and the detection component 2 is driven based on the transmission rod 403 and the connecting member 404, thereby realizing the movement of the detection component 2.

[0047] like Figure 7 As shown, in one embodiment, the external slide rails 401 on opposite sides of the outer surface of the detection box 1 are set to be C-shaped, the upper position of the C-shaped external slide rail 401 corresponds to the detection air chamber 101 of the detection box 1, and the lower position of the C-shaped external slide rail 401 corresponds to the cleaning cavity 102 of the detection box 1.

[0048] like Figure 1-3 as well as Figure 7-8 As shown, in one embodiment, the shielding assembly 3 includes a lifting slot 301 arranged at the port of the detection box 1, a shielding door 302 is slidably arranged on the lifting slot 301, a plurality of first electromagnets 303 are arranged in the detection box 1 on the side of the lifting slot 301 close to the port, and a plurality of second electromagnets 304 are arranged in the detection box 1 on the side of the lifting slot 301 away from the port.

[0049] In this embodiment, the first electromagnet 303 is used to fix the sealing plate 202 of the detection component 2, and the sealing plate 202 is fixedly installed on the port end of the detection box 1 through the magnetic force generated by the first electromagnet 303 to achieve a sealing effect; in addition, the first electromagnet 303 and the second electromagnet 304 are staggered on both sides of the lifting slot 301, and by controlling the magnetic poles of the first electromagnet 303 and the second electromagnet 304, the shielding door 302 can be moved up and down or fixed in the lifting slot 301.

[0050] A specific embodiment of an intelligent detection device based on an optical fiber array of the present invention is as follows:

[0051] First, before performing the gas detection operation, check whether the first electromagnet 303 and the second electromagnet 304 corresponding to the detection chamber 101 are in normal working condition, and confirm that they have adsorption force acting on the sealing plate 202 of the detection component 2; after ensuring that the detection component 2 is completely installed in the detection chamber 101 of the detection box 1, the gas to be detected is transmitted to the first air inlet part 112 through the first air inlet valve 111, and the switch of the first air inlet part 112 is controlled. First, the first air inlet part 112 close to the end of the detection component 2 is connected, and the remaining first air inlet parts 112 away from the end of the detection component 2 are gradually connected, so as to realize the gradual discharge of the inert gas through the relief valve 113 with the gas to be detected, until only the gas to be detected is left in the detection chamber 101, and then the relief valve 113 is closed.

[0052] Secondly, the laser 204 of the detection component 2 generates lasers of different pulses, which are emitted from the first port 206 to the optical circulator 205 and transmitted from the second port 207 of the optical circulator 205 to the light splitting and collimating mode component 208. The light splitting and collimating mode component 208 combines and collimates the divergent lasers into parallel beams and aligns them with the array optical fiber 210. The collimated lasers are emitted from the array optical fiber 210 to the interior of the detection box 1 to detect the gas to be detected. The laser light after the detection is completed becomes the return light signal and passes through the focusing lens of the microlens integrated at the port of the array optical fiber 210. The focused return light signal is then emitted from the port of the optical fiber array 210 and transmitted to the optical splitting and collimating mode assembly 208. The micro-dichroic mirror compositely packaged in the optical splitting and collimating mode assembly 208 first separates and mixes the return light signals according to wavelength, and collimates the divergent return light signals into parallel beams and focuses them on the second port 207 of the optical circulator 205, thereby entering the optical circulator 205. Finally, the light is transmitted from the remaining ports of the optical circulator 205 to the external detector for processing, thereby completing the gas detection operation.

[0053] Finally, the inert gas is transferred into the detection chamber 101 through the first air inlet valve 111 , and the remaining gas in the detection chamber 101 is replaced by the inert gas in the same manner, and all the remaining gas is discharged through the air release valve 113 and collected for treatment.

[0054] Specific embodiment 2 is as follows:

[0055] Before cleaning the detection component 2, the working states of the first electromagnet 303 and the second electromagnet 304 corresponding to the detection chamber 101 are stopped, and the slider 402 is driven to move on the external slide rail 401 toward the port of the detection box 1. At this time, the slider 402 drives the detection component 2 to move synchronously based on the transmission rod 403 and the connecting member 404; when the slider 402 moves to the first turning point of the external slide rail 401, the sensor transmits a signal to control the first electromagnet 303 and the second electromagnet 304 corresponding to the cleaning chamber 102, driving the shielding door 302 to move along the lifting slot 301 from the cleaning chamber 102 to the detection chamber 101, specifically by controlling the staggered first electromagnet 303 and the second electromagnet The polar direction of 304 utilizes the thrust and suction generated by the polar direction on the shielding door 302 to move the shielding door 302 until the shielding door 302 is completely moved to the port of the detection air chamber 101, thereby completely approaching and fixing the shielding door 302 to the detection air chamber 101 based on the first electromagnet 303 and the second electromagnet 304, thereby sealing the detection air chamber 101; at the same time, the slider 402 of the movable component 4 moves on the external slide rail 401 until the slider 402 moves to the end of the external slide rail 401 at the lower part of the detection box 1 away from the port of the clean chamber 102, thereby completely installing the detection component 2 in the clean chamber 102, and fixing the detection component 2 based on the first electromagnet 303 and the second electromagnet 304.

[0056] Specific embodiment three is as follows:

[0057] When the detection component 2 is in place for cleaning, first, by controlling the second air inlet valve 128 and the second air inlet member 127, only inert gas is left in the cleaning chamber 102 to ensure that after the subsequent cleaning work is completed, the end face of the array optical fiber 210 will not be contaminated by the residual gas in the cleaning chamber 102; then, by driving the telescopic rod 122 to move on the built-in slide rail 121, the lateral distance between the cleaning component and the array optical fiber 210 is adjusted, and by controlling the telescopic length of the telescopic rod 122, the longitudinal distance between the cleaning component and the array optical fiber 210 is adjusted until the optimal cleaning orientation; when the cleaning component is in place, first rotate the ball joint 123 to enable the visual collection member 126 to collect visual information on the end face of the array optical fiber 210, and analyze the type of pollution on the visual information. Different cleaning agents (such as anhydrous ethanol, pure water, etc.) are taken, and the ball joint 123 is rotated again to allow the cleaning part 125 to clean the contaminated area of the array optical fiber 210. For contaminated areas in different positions, the cleaning requirements of the cleaning part 125 are met by universal rotation adjustment of the ball joint 123; during the cleaning process, the cleaning can be paused at any time and visual information can be collected again until there is no contamination on the end face of the array optical fiber 210 in the collected visual information; later, the ball joint 123 is rotated again to allow the cleaning nozzle 124 to perform an inert gas purge and dry operation on the array optical fiber 210 to ensure that there is no cleaning agent on the detection component 2. During the cleaning operation, the drain valve 129 discharges the cleaning agent mixed with contamination and the inert gas that may be mixed with contamination for collection and treatment. When the cleaning work of the detection component 2 is completed, the movable component 4 is used to move the detection component 2 to the detection air chamber 101 for installation, and the shielding door 302 of the shielding component 3 is used to seal and isolate the cleaning chamber 102. Finally, based on the first air inlet valve 111, only inert gas remains in the gas in the detection air chamber 101. The cleaning work of the detection component 2 is completed and preparations are made for subsequent gas detection work.

[0058] The present invention and its embodiments are described above. This description is not restrictive. What is shown in the accompanying drawings is only one of the embodiments of the present invention. The actual structure is not limited to this. In short, if ordinary technicians in this field are inspired by it and do not depart from the purpose of the invention, they can creatively design structural methods and embodiments similar to the technical solution, which should all fall within the scope of protection of the present invention.

Claims

1. An intelligent detection device based on an optical fiber array, characterized in that: The invention comprises a detection box (1), a detection component (2), a shielding component (3) and a movable component (4); the detection component (2) is movably mounted on a port on one side of the detection box (1) based on the movable component (4); and the shielding component (3) is movably mounted on another port on the side of the detection box (1) where the detection component (2) is provided. The detection component (2) comprises a laser (204), an optical circulator (205), a light splitting collimating mode component (208), and an optical fiber array (210); the laser (204) is fixedly connected to a first port (206) of the optical circulator (205); a second port (207) of the optical circulator (205) abuts one side of the light splitting collimating mode component (208); and the optical fiber array (210) is abutted against the other side of the light splitting collimating mode component (208).

2. The intelligent detection device based on an optical fiber array according to claim 1, characterized in that: The detection assembly (2) further comprises a base plate (201), a sealing plate (202) and a partition (203) are fixedly arranged on one side of the top of the base plate (201), the laser (204) and the optical circulator (205) are fixedly arranged inside the sealing plate (202) and the partition (203), the second port (207) of the optical circulator (205) passes through the bottom of the partition (203) and abuts against the light splitting collimation mode assembly (208) on the other side of the partition (203); a plurality of V-shaped grooves (209) are arranged on the top of the base plate (201) away from the sealing plate (202), and the array optical fibers (210) are arranged in an array on each of the V-shaped grooves (209).

3. The intelligent detection device based on an optical fiber array according to claim 1, characterized in that: The detection box (1) comprises an upper detection air chamber (101) and a lower cleaning chamber (102), and the detection component (2) and the shielding component (3) are movably mounted on ports on one side of the detection air chamber (101) and the cleaning chamber (102), respectively; a first air inlet valve (111) and an air discharge valve (113) connected to the detection air chamber (101) are provided on the top of the detection box (1), and a second air inlet valve (128) and an air discharge valve (129) are provided on the lower part of the detection box (1) away from the port side; a plurality of first air inlet parts (112) are provided at the top end of the detection air chamber (101), and the first air inlet parts (112) are connected to the first air inlet valve (111); a plurality of second air inlet parts (127) are provided at the top end of the cleaning chamber (102), and the second air inlet parts (127) are connected to the second air inlet valve (128).

4. The intelligent detection device based on an optical fiber array according to claim 3, characterized in that: A reflective mirror group (114) is fixedly arranged on a side of the detection chamber (101) away from the detection component (2), and the reflective mirror group (114) is also arranged between the partition (203) of the detection component (2) and the spectroscopic collimation module (208).

5. The intelligent detection device based on an optical fiber array according to claim 3, characterized in that: A built-in slide rail (121) is provided at the top end of the cleaning chamber (102), one end of a telescopic rod (122) is slidably connected to the built-in slide rail (121), one end of the telescopic rod (122) is provided with a ball joint (123), and a cleaning air nozzle (124), a cleaning component (125) and a visual acquisition component (126) are integrated on the ball joint (123).

6. The intelligent detection device based on an optical fiber array according to claim 1, characterized in that: The movable assembly (4) includes external slide rails (401) arranged on opposite sides of the outer surface of the detection box (1), a slider (402) is slidably installed in the external slide rails (401), and the slider (402) is fixedly connected to one end of a transmission rod (403). A connecting piece (404) is fixedly installed on the side of the sealing plate (202) of the detection assembly (2) corresponding to the external slide rail (401), and the end of the transmission rod (403) away from the slider (402) is fixedly connected to the connecting piece (404).

7. The intelligent detection device based on an optical fiber array according to claim 6, characterized in that: The external slide rails (401) on opposite sides of the outer surface of the detection box (1) are arranged in a C-shape, the upper position of the C-shaped external slide rail (401) corresponds to the detection air chamber (101) of the detection box (1), and the lower position of the C-shaped external slide rail (401) corresponds to the cleaning cavity (102) of the detection box (1).

8. The intelligent detection device based on an optical fiber array according to claim 1, characterized in that: The shielding assembly (3) comprises a lifting slot (301) arranged at the port of the detection box (1); a shielding door (302) is slidably arranged on the lifting slot (301); a plurality of first electromagnets (303) are arranged in the detection box (1) on the side of the lifting slot (301) close to the port; and a plurality of second electromagnets (304) are arranged in the detection box (1) on the side of the lifting slot (301) away from the port.

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