Laser combustible gas concentration monitoring device

Abstract

The invention discloses a laser combustible gas concentration monitoring device, relates to the field of combustible gas concentration monitoring, solves the problem that a drying agent is difficult to replace in time by the existing monitoring equipment, and comprises a device shell and an infrared monitor fixedly mounted on the inner side of the device shell, a processing barrel is fixedly mounted on the inner side of the device shell, the processing barrel is in butt joint with the infrared monitor through an exhaust pipe, a mounting pipe is fixedly mounted at the bottom of the processing barrel, and an air inlet pump extending to the bottom of the device shell is fixedly mounted on the inner side of the mounting pipe; the drying mechanism is used for replacing a drying agent in the treatment barrel, and the drying mechanism is mounted on the inner side of the treatment barrel; according to the combustible gas monitoring device, through the drying mechanism, a drying agent in the processing barrel can be replaced, monitoring of combustible gas is kept, and therefore the effect of improving the combustible gas monitoring precision is achieved.

Description

Technical Field

[0001] The invention relates to the field of combustible gas concentration monitoring, in particular to a laser combustible gas concentration monitoring device. Background Art

[0002] In modern industrial production, safety issues are always put first, especially for those production links involving flammable gases. Any slight negligence may lead to irreversible consequences. Through real-time monitoring, staff can promptly detect problems such as gas leaks, so as to take timely measures for maintenance and treatment to avoid further deterioration of the problem.

[0003] ‌Equipment for monitoring the concentration of combustible gas mainly includes combustible gas detectors, combustible gas detectors and portable gas detectors, etc. Through real-time monitoring and early warning, potential gas leakage accidents can be effectively prevented to ensure the safety of personnel and equipment. However, when monitoring by infrared laser, it will be affected by the humidity in the gas. The existing Chinese public patent document: CN221612712U discloses a combustible gas monitoring device set in a dangerous environment. The outside atmosphere is pumped into the equipment from the air inlet of the air intake module through an air pump, and then enters the laser gas concentration measurement device through the air pump after being filtered by the air intake module. The laser gas concentration measurement device measures the concentration of combustible gas in the gas, and then the gas is transported to the exhaust module and discharged to the outside atmosphere from the air outlet of the exhaust module. Although the inhaled gas can be dried by a desiccant, the combustible gas needs to be continuously and long-term monitored. The desiccant removes the moisture in the gas by adsorption. With the use of the desiccant, the dehumidification effect of the drying will gradually decrease. If the user does not replace it in time, the desiccant will be difficult to remove the moisture in the gas, and the monitoring data will be inaccurate, causing safety hazards. Summary of the invention

[0004] The purpose of the present invention is to provide a laser combustible gas concentration monitoring device to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: A laser combustible gas concentration monitoring device comprises: a device housing and an infrared monitor fixedly mounted on the inner side of the device housing, for monitoring the concentration of combustible gas; a treatment tube fixedly mounted on the inner side of the device housing, the treatment tube and the infrared monitor are connected via an exhaust pipe; after the treatment tube dries the combustible gas, the combustible gas is transported to the infrared monitor via the exhaust pipe for monitoring and discharged from the top of the infrared monitor; a mounting tube fixedly mounted on the bottom of the treatment tube, an intake pump extending to the bottom of the device housing, for inhaling combustible gas, is fixedly mounted on the inner side of the mounting tube; further comprises: a drying mechanism, for replacing the desiccant in the treatment tube, the drying mechanism being mounted on the inner side of the treatment tube; a feeding mechanism, for replenishing the desiccant in the treatment tube, the feeding mechanism being mounted on the outer side of the device housing; a discharging mechanism, for enabling the desiccant to be quickly discharged from the treatment tube, the discharging mechanism being mounted on the bottom of the treatment tube.

[0006] Preferably, the drying mechanism includes a mounting rod rotatably mounted on the inner side of the processing cylinder, a turntable is fixedly mounted on the outer side of the mounting rod, the outer side of the turntable is in contact with the inner side of the processing cylinder, four centrally symmetrical drying chambers are opened on the surface of the turntable for storing desiccant, when the air intake pump and the exhaust pipe are aligned with any one of the drying chambers, the inhaled combustible gas can be dried, a driving motor is fixedly mounted on the top of the processing cylinder, the output end of the driving motor is fixedly connected to the top end of the mounting rod, so that the driving motor can drive the turntable to rotate through the mounting rod, and the four drying chambers are transposed to achieve non-interruption and replacement of desiccant, an arc-shaped scraper strip is fixedly mounted on the inner side of the drying chamber, which is convenient for scraping out the desiccant on the bottom inner wall of the processing cylinder, the bottom of the arc-shaped scraper strip is in contact with the bottom inner wall of the processing cylinder, a filter plate is fixedly mounted on the top of the mounting pipe, which is used to filter impurities in the combustible gas, and the top of the filter plate is on the same horizontal line as the bottom inner wall of the processing cylinder.

[0007] Preferably, the feeding mechanism includes a storage tank fixedly mounted on the outside of the device shell, a feeding pipe fixedly mounted between the bottom of the storage tank and the top of the processing cylinder, the feeding pipe being located directly above any one of the drying chambers, so that the desiccant in the storage tank can enter the drying chamber through the feeding pipe, and as the turntable rotates, the four drying chambers are filled with materials, a pull rod extending to the top of the device shell is slidably mounted on the top of the storage tank, a pressure plate is fixedly connected to the bottom of the pull rod, a spring is fixedly mounted between the top of the pressure plate and the top inner wall of the storage tank, and the elastic force of the spring is used to press down the desiccant in the storage tank to ensure the filling of the drying chamber, a feeding trough is fixedly mounted on the outside of the storage tank for adding desiccant to the storage tank, a scale bar is fixedly mounted on the outside of the pull rod, and the storage amount of the desiccant in the storage tank can be identified by the height of the scale bar, so as to facilitate timely feeding.

[0008] Preferably, the discharging mechanism comprises a discharging cylinder fixedly mounted on the bottom of the processing cylinder, the discharging cylinder being located directly below any one of the drying chambers, and discharging the desiccant with relatively high humidity with the rotation of the turntable, a storage cylinder being arranged at the bottom of the discharging cylinder for storing the discharged desiccant, the storage cylinder penetrating the bottom of the device housing, a mounting box being fixedly mounted on the inner side of the discharging cylinder, a driven rod 1 being rotatably mounted on the inner side of the mounting box, the driven rod 1 extending to the outer side of the mounting box, a plurality of centrally-positioned stirring blades being fixedly mounted on the bottom end of the driven rod 1, the stirring blades The mixing blade is in a spiral structure and is located on the inner side of the storage barrel. When the driven rod 1 rotates, the mixing blade can stir the desiccant in the storage barrel to prevent the desiccant with high humidity from sticking and accumulating on the inner wall of the storage barrel. A driven rod 2 is fixedly installed on the bottom end of the mounting rod. The driven rod 2 is rotatably installed on the bottom inner wall of the device housing. A synchronous belt that passes through the discharge barrel is rotatably installed between the driven rod 2 and the driven rod 1. The synchronous belt is located on the inner side of the mounting box, so that when the mounting rod rotates, it can drive the driven rod 1 to rotate synchronously through the driven rod 2 and the synchronous belt.

[0009] Preferably, a monitoring panel is fixedly mounted on the outer side of the device housing, and the monitoring panel is connected to the infrared monitor through wiring, and is used to display the monitoring data of the infrared monitor on the combustible gas.

[0010] Preferably, a pull ring is fixedly mounted on one end of the pull rod away from the pressure plate to facilitate the movement and adjustment of the pull rod by pulling it.

[0011] Preferably, the bottom of the pressure plate and the bottom inner wall of the storage tank are both conical structures to facilitate downward discharge of materials.

[0012] Preferably, a plurality of centrally symmetrical positioning clips are fixedly mounted on the outer side of the storage barrel, and a limiting clip frame for limiting the insertion of the positioning clips is fixedly mounted on the bottom of the device housing, so as to facilitate installation and removal of the storage barrel.

[0013] Preferably, a handle is fixedly mounted on the bottom of the storage barrel to improve the convenience of installing and disassembling the storage barrel.

[0014] Preferably, a plurality of scrapers are fixedly mounted on the top of the driven rod 1 in a centrally symmetrical manner, and the bottom of the scrapers is in contact with the top of the installation box, so as to facilitate scraping out the desiccant remaining on the top of the installation box.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention uses a drying mechanism and an air intake pump to extract external combustible gas, allowing the combustible gas to enter the processing cylinder. The desiccant absorbs the moisture inside the combustible gas, which is convenient for the infrared monitor to monitor the concentration of the combustible gas. The desiccant in the processing cylinder can be replaced to maintain the monitoring of the combustible gas, thereby achieving the effect of improving the accuracy of combustible gas monitoring.

[0016] 2. The present invention can automatically refill the drying chambers in the turntable through the refilling mechanism, and as the turntable rotates, it ensures that the four drying chambers are all stored with desiccant, and it is convenient to observe the use of the desiccant and replenish the stock later, thereby achieving the effect of facilitating timely refilling.

[0017] 3. The present invention can discharge the desiccant with high humidity in the drying chamber in time through the discharge mechanism for storage, and stir the stored desiccant to prevent the desiccant with high humidity from sticking and accumulating, thereby achieving the effect of easy cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of the infrared monitor and the air intake pump in the present invention; Figure 3 It is a schematic diagram of the structure of the treatment cylinder and the rotating disk in the present invention; Figure 4 It is a schematic diagram of the structure of the arc-shaped scraper strip and the drying chamber in the present invention; Figure 5 It is a schematic diagram of the structure of the limit card frame and the positioning card strip in the present invention; Figure 6 This is a schematic diagram of the structure of the pressure plate and the storage tank in the present invention; Figure 7 It is a schematic diagram of the structure of the storage barrel and the stirring blade in the present invention; Figure 8It is a schematic diagram of the structure of the installation box and the discharge barrel in the present invention.

[0019] In the figure: 1. device housing; 2. infrared monitor; 3. treatment cylinder; 4. exhaust pipe; 5. mounting pipe; 6. air intake pump; 7. mounting rod; 8. turntable; 9. drying chamber; 10. driving motor; 11. arc scraper; 12. filter plate; 13. limit card frame; 14. storage tank; 15. feeding pipe; 16. pull rod; 17. pressure plate; 18. spring; 19. feeding trough; 20. discharge cylinder; 21. storage cylinder; 22. mounting box; 23. driven rod 1; 24. stirring blade; 25. synchronous belt; 26. monitoring panel; 27. pull ring; 28. positioning card strip; 29. ​​handle; 30. scraper; 31. scale bar; 32. driven rod 2. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative inspiration are within the scope of protection of the present invention.

[0021] Example 1: Please refer to Figure 1-Figure 8 A laser combustible gas concentration monitoring device shown in the figure includes a device housing 1 and an infrared monitor 2 fixedly installed on the inner side of the device housing 1, which is used to monitor the concentration of combustible gas. A processing tube 3 is fixedly installed on the inner side of the device housing 1, and the processing tube 3 is connected to the infrared monitor 2 through an exhaust pipe 4. After the processing tube 3 dries the combustible gas, it is transported to the infrared monitor 2 through the exhaust pipe 4 for monitoring and discharged from the top of the infrared monitor 2. A mounting pipe 5 is fixedly installed at the bottom of the processing tube 3, and an air intake pump 6 extending to the bottom of the device housing 1 is fixedly installed on the inner side of the mounting pipe 5 for inhaling combustible gas; it also includes: a drying mechanism for replacing the desiccant in the processing tube 3, and the drying mechanism is installed on the inner side of the processing tube 3; a feeding mechanism for replenishing the desiccant in the processing tube 3, and the feeding mechanism is installed on the outer side of the device housing 1; a discharging mechanism for quickly discharging the desiccant from the processing tube 3, and the discharging mechanism is installed at the bottom of the processing tube 3.

[0022] The drying mechanism includes a mounting rod 7 rotatably mounted on the inner side of the treatment cylinder 3, a turntable 8 is fixedly mounted on the outer side of the mounting rod 7, the outer side of the turntable 8 is in contact with the inner side of the treatment cylinder 3, and four centrally symmetrical drying chambers 9 are provided on the surface of the turntable 8 for storing desiccant. When the air intake pump 6 and the exhaust pipe 4 are aligned with any one of the drying chambers 9, the inhaled combustible gas can be dried. A driving motor 10 is fixedly mounted on the top of the treatment cylinder 3, and the output end of the driving motor 10 is fixedly connected to the top of the mounting rod 7, so that the driving motor 10 can drive the turntable 8 to rotate through the mounting rod 7, and the four drying chambers 9 are transposed to realize the replacement of the desiccant without interruption. An arc-shaped scraping strip 11 is fixedly mounted on the inner side of the drying chamber 9 to facilitate scraping out the desiccant on the inner wall of the bottom of the treatment cylinder 3, and the bottom of the arc-shaped scraping strip 11 is in contact with the inner wall of the bottom of the treatment cylinder 3. A filter plate 12 is fixedly mounted on the top of the mounting pipe 5 for filtering impurities in the combustible gas, and the top of the filter plate 12 is on the same horizontal line as the inner wall of the bottom of the treatment cylinder 3. The air intake pump 6 sucks the combustible gas from the outside into the processing tube 3, and then enters the drying chamber 9 aligned with the exhaust pipe 4. The desiccant in the drying chamber 9 absorbs the moisture in the combustible gas, and the dehumidified combustible gas can enter the infrared monitor 2 through the exhaust pipe 4, so that the infrared monitor 2 monitors the concentration of the combustible gas and discharges it from the top of the infrared monitor 2. After monitoring for a certain period of time, the driving motor 10 is operated, and the turntable 8 is driven to rotate through the mounting rod 7, and the four drying chambers 9 on the turntable 8 are replaced, so that the drying chamber 9 with higher humidity is away from the exhaust pipe 4, and the other drying chamber 9 is aligned with the exhaust pipe 4, so as to achieve the effect of replacing the desiccant without interruption, and maintain the monitoring of the combustible gas, thereby achieving the effect of improving the accuracy of combustible gas monitoring.

[0023] The feeding mechanism includes a storage tank 14 fixedly mounted on the outside of the device housing 1, a feed pipe 15 fixedly mounted between the bottom of the storage tank 14 and the top of the processing cylinder 3, and the feed pipe 15 is located directly above any drying chamber 9, so that the desiccant in the storage tank 14 can enter the drying chamber 9 through the feed pipe 15, and as the turntable 8 rotates, the four drying chambers 9 are filled with materials, and a pull rod 16 extending to the top of the device housing 1 is slidably mounted on the top of the storage tank 14, and the bottom of the pull rod 16 is fixed. A pressure plate 17 is connected, and a spring 18 is fixedly installed between the top of the pressure plate 17 and the top inner wall of the storage tank 14. The elastic force of the spring 18 is used to make the pressure plate 17 press down the desiccant in the storage tank 14 to ensure the filling of the drying chamber 9. A feed trough 19 is fixedly installed on the outside of the storage tank 14 for adding desiccant to the storage tank 14. A scale bar 31 is fixedly installed on the outside of the pull rod 16. The storage amount of the desiccant in the storage tank 14 can be identified by the height of the scale bar 31, so as to facilitate timely replenishment. The user pulls the pull rod 16 to drive the pressure plate 17 to move upward, compresses the spring 18, and moves the pressure plate 17 to the top of the feed slot 19. Then, the user pours the desiccant into the storage tank 14 through the feed slot 19, and the desiccant enters the drying chamber 9 through the discharge pipe 15 to refill the drying chamber 9, and releases the pull rod 16. The rebound force of the spring 18 is used to make the pressure plate 17 rest on the top of the desiccant in the storage tank 14. When the turntable 8 rotates, the desiccant enters the drying chamber 9 above the turntable 8, so as to realize automatic refilling of the desiccant. The pressure of the pressure plate 17 is used to ensure that there is sufficient desiccant in the drying chamber 9 to prevent the problem of incomplete refilling. As the pull rod 16 moves, the storage condition of the desiccant in the storage tank 14 can be judged by the scale bar 31 on the outside of the pull rod 16, so as to facilitate timely refilling, thereby achieving the effect of facilitating timely refilling.

[0024] The discharging mechanism includes a discharging cylinder 20 fixedly mounted on the bottom of the processing cylinder 3. The discharging cylinder 20 is located directly below any drying chamber 9. With the rotation of the turntable 8, the desiccant with high humidity is discharged. A storage cylinder 21 is provided at the bottom of the discharging cylinder 20 for storing the discharged desiccant. The storage cylinder 21 penetrates the bottom of the device housing 1. A mounting box 22 is fixedly mounted on the inner side of the discharging cylinder 20. A driven rod 23 is rotatably mounted on the inner side of the mounting box 22. The driven rod 23 extends to the outer side of the mounting box 22. A plurality of central stirring blades 24 are fixedly mounted on the bottom end of the driven rod 23. The stirring blades 24 are in a spiral structure. The stirring blade 24 is located on the inner side of the storage barrel 21. When the driven rod 1 23 rotates, the stirring blade 24 can stir the desiccant in the storage barrel 21 to prevent the desiccant with high humidity from sticking and accumulating on the inner wall of the storage barrel 21. The bottom end of the mounting rod 7 is fixedly mounted with a driven rod 2 32. The driven rod 2 32 is rotatably mounted on the bottom inner wall of the device housing 1. A synchronous belt 25 that penetrates the discharge barrel 20 is rotatably mounted between the driven rod 2 32 and the driven rod 1 23. The synchronous belt 25 is located on the inner side of the mounting box 22, so that when the mounting rod 7 rotates, it can drive the driven rod 1 23 to rotate synchronously through the driven rod 2 32 and the synchronous belt 25. When the mounting rod 7 drives the turntable 8 to rotate, the drying chamber 9 with relatively high humidity is aligned with the discharge barrel 20, so that the desiccant passes through the discharge barrel 20 and enters the storage barrel 21 to store the used desiccant, and the mounting rod 7 drives the driven rod 2 32 to rotate synchronously, so that the driven rod 2 32 drives the driven rod 1 23 to rotate through the synchronous belt 25, and the driven rod 1 23 drives the stirring blade 24 to rotate along the inner side of the storage barrel 21, so as to prevent the desiccant with relatively high humidity from sticking and accumulating on the inner wall of the storage barrel 21, thereby achieving the effect of facilitating the cleaning of the stored materials.

[0025] Working principle: First, the user installs the device on a wall or tank body where combustible gas is stored. Then, the user pulls the pull rod 16 upward, so that the pull rod 16 drives the pressure plate 17 to move to the top of the feed slot 19 and compresses the spring 18. Then, the user pours the desiccant into the storage tank 14 through the feed slot 19. The desiccant enters the drying chamber 9 through the discharge pipe 15, and the user releases the pull rod 16. The rebound force of the spring 18 is used to make the pressure plate 17 press against the top of the desiccant in the storage tank 14 to provide pressure for the desiccant, and the drying chamber 9 is supplemented with sufficient desiccant. After that, the user starts the air intake pump 6 and sets a timer start for the drive motor 10. The air intake pump 6 delivers the external combustible gas into the treatment cylinder 3, and the combustible gas enters the drying chamber 9 aligned with the exhaust pipe 4. The desiccant in the drying chamber 9 absorbs the moisture in the combustible gas, so that the dehumidified combustible gas enters the infrared monitor 2 through the exhaust pipe 4. At this time, the infrared monitor 2 monitors the concentration of the combustible gas and discharges it from the top of the infrared monitor 2, realizing the cyclic monitoring of the combustible gas. After monitoring for a specified period of time, the drive motor 10 starts to run, and the drive motor 10 drives the installation rod 7 to rotate, so that the turntable 8 rotates ninety degrees, and the four drying chambers 9 on the turntable 8 are replaced, so that the drying chamber 9 with higher humidity is away from the exhaust pipe 4 and aligned with the discharge cylinder 20. The desiccant in the drying chamber 9 passes through the discharge cylinder 20 and enters the storage cylinder 21 to store the used desiccant. At the same time, the installation rod 7 drives the driven rod 2 32 to rotate synchronously, so that the driven rod 2 32 drives the driven rod 1 23 to rotate through the synchronous belt 25, and the driven rod 1 23 drives the stirring blade 24 to rotate along the inner side of the storage cylinder 21, so as to remove the sticky and accumulated on the inner wall of the storage cylinder 21. The desiccant is stirred and pushed into the bottom inner wall of the storage barrel 21 for easy storage. At the same time, another drying chamber 9 is aligned with the exhaust pipe 4, so that the desiccant in the drying chamber 9 dries the combustible gas sucked by the air intake pump 6, thereby achieving the effect of replacing the desiccant without interruption. Finally, when the empty drying chamber 9 is aligned with the discharge pipe 15, the pressure of the pressure plate 17 is used to push the desiccant into the empty drying chamber 9, thereby achieving automatic replenishment of the desiccant. As a result, the infrared monitor 2 can keep monitoring the dry combustible gas, thereby achieving the effect of improving the accuracy of combustible gas monitoring.

[0026] Example 2: Please refer to Figure 1-Figure 6 This embodiment further explains Example 1. A monitoring panel 26 is fixedly installed on the outer side of the device housing 1 in the figure. The monitoring panel 26 is connected to the infrared monitor 2 through wiring to display the monitoring data of the infrared monitor 2 on the combustible gas. A pull ring 27 is fixedly installed on the end of the pull rod 16 away from the pressure plate 17, which is convenient for pulling the pull rod 16 to move and adjust. The bottom of the pressure plate 17 and the bottom inner wall of the storage tank 14 are both conical structures, which is convenient for discharging downward.

[0027] In the present embodiment: when the infrared monitor 2 monitors the combustible gas, the monitoring data can be displayed on the monitoring panel 26 for the convenience of the user to observe, and when the storage tank 14 is replenished, the user can pull the pull rod 16 to move through the pull ring 27, thereby improving the convenience of adjusting the height of the pressure plate 17, and the conical surface of the inner wall at the bottom of the storage tank 14 can facilitate the desiccant to enter the discharge pipe 15, thereby facilitating timely replenishment of the drying chamber 9.

[0028] Example 3: Please refer to Figure 5-Figure 8 This embodiment further explains other embodiments. The outer side of the storage barrel 21 in the figure is fixedly installed with a plurality of centrally symmetrical positioning strips 28, and the bottom of the device housing 1 is fixedly installed with a limit card frame 13 for limiting the insertion of the positioning strips 28, which is convenient for installing and removing the storage barrel 21. A handle 29 is fixedly installed at the bottom of the storage barrel 21 to improve the convenience of installing and removing the storage barrel 21. A plurality of centrally symmetrical scrapers 30 are fixedly installed at the top of the driven rod 23, and the bottom of the scraper 30 is in contact with the top of the installation box 22, which is convenient for scraping out the desiccant remaining on the top of the installation box 22.

[0029] In this embodiment, the user can hold the handle 29 and rotate the storage barrel 21, so that the positioning card strip 28 on the storage barrel 21 is pulled out from the limit card frame 13, and the storage barrel 21 can be taken out from the bottom of the discharge barrel 20, so as to clean the desiccant stored in the storage barrel 21. When the driven rod 23 rotates, it can drive the scraper 30 to rotate synchronously, so as to scrape the desiccant dropped from the top of the installation box 22 downwards to prevent the desiccant from accumulating.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A laser combustible gas concentration monitoring device, characterized in that: include: A device housing (1) and an infrared monitor (2) fixedly mounted on the inner side of the device housing (1); a treatment cylinder (3) fixedly mounted on the inner side of the device housing (1); the treatment cylinder (3) and the infrared monitor (2) are butt-jointed via an exhaust pipe (4); a mounting pipe (5) fixedly mounted on the bottom of the treatment cylinder (3); an air intake pump (6) extending to the bottom of the device housing (1) fixedly mounted on the inner side of the mounting pipe (5); Also includes: A drying mechanism, used for replacing the desiccant in the processing cylinder (3), the drying mechanism being installed on the inner side of the processing cylinder (3); A feeding mechanism, used for replenishing the desiccant in the processing cylinder (3), the feeding mechanism being installed on the outside of the device housing (1); A discharge mechanism is used to quickly discharge the desiccant from the processing cylinder (3), and the discharge mechanism is installed at the bottom of the processing cylinder (3).

2. A laser combustible gas concentration monitoring device according to claim 1, characterized in that: The drying mechanism comprises a mounting rod (7) rotatably mounted on the inner side of the treatment cylinder (3); a turntable (8) is fixedly mounted on the outer side of the mounting rod (7); the outer side of the turntable (8) is in contact with the inner side of the treatment cylinder (3); four centrally symmetrical drying chambers (9) are provided on the surface of the turntable (8); a driving motor (10) is fixedly mounted on the top of the treatment cylinder (3); the output end of the driving motor (10) is fixedly connected to the top of the mounting rod (7); an arc-shaped scraping strip (11) is fixedly mounted on the inner side of the drying chamber (9); the bottom of the arc-shaped scraping strip (11) is in contact with the bottom inner wall of the treatment cylinder (3); a filter plate (12) is fixedly mounted on the top of the mounting tube (5); the top of the filter plate (12) is on the same horizontal line as the bottom inner wall of the treatment cylinder (3).

3. A laser combustible gas concentration monitoring device according to claim 2, characterized in that: The feeding mechanism comprises a storage tank (14) fixedly mounted on the outside of the device housing (1), a feed pipe (15) fixedly mounted between the bottom of the storage tank (14) and the top of the processing cylinder (3), the feed pipe (15) being located directly above any one of the drying chambers (9), a pull rod (16) extending to the top of the device housing (1) being slidably mounted on the top of the storage tank (14), a pressure plate (17) being fixedly connected to the bottom of the pull rod (16), a spring (18) being fixedly mounted between the top of the pressure plate (17) and the top inner wall of the storage tank (14), a feed trough (19) being fixedly mounted on the outside of the storage tank (14), and a scale bar (31) being fixedly mounted on the outside of the pull rod (16).

4. A laser combustible gas concentration monitoring device according to claim 3, characterized in that: The discharge mechanism comprises a discharge cylinder (20) fixedly mounted on the bottom of the processing cylinder (3), the discharge cylinder (20) being located directly below any one of the drying chambers (9), a storage cylinder (21) being arranged at the bottom of the discharge cylinder (20), the storage cylinder (21) penetrating the bottom of the device housing (1), a mounting box (22) being fixedly mounted on the inner side of the discharge cylinder (20), a driven rod (23) being rotatably mounted on the inner side of the mounting box (22), the driven rod (23) extending to the outer side of the mounting box (22), the driven rod (23) A plurality of stirring blades (24) are fixedly mounted at the bottom end of the discharging barrel (20), the stirring blades (24) being of a spiral structure and being located on the inner side of the storage barrel (21). A driven rod 2 (32) is fixedly mounted at the bottom end of the mounting rod (7), the driven rod 2 (32) being rotatably mounted on the bottom inner wall of the device housing (1), a synchronous belt (25) penetrating the discharging barrel (20) being rotatably mounted between the driven rod 2 (32) and the driven rod 1 (23), the synchronous belt (25) being located on the inner side of the mounting box (22).

5. The laser combustible gas concentration monitoring device according to claim 1 is characterized in that: A monitoring panel (26) is fixedly mounted on the outside of the device housing (1), and the monitoring panel (26) is connected to the infrared monitor (2) via wiring.

6. The laser combustible gas concentration monitoring device according to claim 3 is characterized in that: A pull ring (27) is fixedly mounted on one end of the pull rod (16) away from the pressure plate (17).

7. The laser combustible gas concentration monitoring device according to claim 3 is characterized in that: The bottom of the pressure plate (17) and the bottom inner wall of the storage tank (14) are both conical structures.

8. The laser combustible gas concentration monitoring device according to claim 4 is characterized in that: A plurality of centrally symmetrical positioning clips (28) are fixedly mounted on the outside of the material storage barrel (21), and a limiting clip frame (13) for limiting insertion of the positioning clips (28) is fixedly mounted on the bottom of the device housing (1).

9. The laser combustible gas concentration monitoring device according to claim 4 is characterized in that: A handle (29) is fixedly mounted on the bottom of the storage barrel (21).

10. The laser combustible gas concentration monitoring device according to claim 4, characterized in that: A plurality of scrapers (30) are fixedly mounted on the top of the driven rod 1 (23) in a centrally symmetrical manner, and the bottoms of the scrapers (30) are in contact with the top of the mounting box (22).

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