Automatic cleaning device for lens of gas analyzer for air-sea flux observation

Abstract

The invention discloses an automatic cleaning device for a gas analyzer lens for air-sea flux observation, and relates to the field of ocean. Comprising a fixing frame, a cleaning liquid box is placed on one side of the fixing frame, the cleaning liquid box is connected with a control box through a water pipe, the control box is connected with a cleaning machine box through a washing guide pipe, the cleaning machine box is fixedly connected to the fixing frame, and a driving mechanism is arranged in the cleaning machine box; the driving mechanism is connected with an open-circuit gas analyzer and a two-way spray head, the two-way spray head is connected with a washing guide pipe, and two lenses are arranged on the open-circuit gas analyzer.

Description

Technical Field

[0001] The invention relates to the marine field, and in particular to an automatic cleaning device for a lens of a gas analyzer used for sea-air flux observation. Background Art

[0002] As an important boundary condition between the ocean and the atmosphere, the accurate expression of air-sea flux is crucial to the development of air-sea coupled numerical models. The air-sea flux exchange process largely determines and regulates the dynamic and thermodynamic structure within the boundary layer, plays a key role in the accurate forecast of marine disasters such as storm surges and typhoons, and is also of great significance to global climate change and carbon cycle. At present, the most effective way to study air-sea flux is to conduct field observations, combined with theoretical analysis, to achieve quantitative expression of air-sea flux, and then apply it to numerical models. However, air-sea flux data based on field observations are still relatively lacking, especially air-sea heat flux and CO 2 The most direct way to observe air-sea flux is the commonly used Eddy Covariance Method (EC). Based on direct eddy covariance observation data, the existing air-sea flux algorithm is verified and updated, and a new air-sea flux parameterization scheme is developed.

[0003] A core device in the eddy covariance flux system is an open-path infrared gas analyzer (IRGA), which is used to realize in-situ H 2 O and CO 2 The high-frequency measurement of concentration, combined with the high-frequency three-dimensional wind data of the three-dimensional ultrasonic anemometer, is used to obtain the sea-air heat flux, water vapor flux and CO by using the eddy correlation method. 2 Flux. The infrared gas analyzer uses the absorption bands of carbon dioxide and water vapor in the near-infrared band (approximately 4.26 μm and 2.59 μm, respectively) to measure the concentration of carbon dioxide and water vapor in the air. However, its optical lens is directly exposed to the harsh environment at sea and is significantly affected by strong winds, sea fog, marine aerosols, etc. The optical lens is easily contaminated with foreign matter such as sea salt particles, thereby blocking the measurement optical path of the infrared gas analyzer, resulting in data signal strength far below the minimum signal strength value (0.8) required by scientific research institutes, resulting in missing or unavailable measurement data.

[0004] In the field observation of sea-air flux, it is often based on offshore tower platforms, buoys, etc. The maintenance cost of these platforms or equipment is extremely high. Therefore, the maintenance cycle of sea-air flux equipment is 3-6 months. However, according to the preliminary experiments, H 2 O and CO 2The signal intensity of the concentration was far below 0.8 after 15 days. In order to avoid data loss, improve data quality and ensure data continuity, the analyzer lens is currently cleaned manually using lens cleaning paper regularly, which has high operating costs at sea. In addition, the lens cleaning paper will cause certain wear and tear on the analyzer lens, reducing the service life of the open-circuit gas analyzer, further affecting the quality of observation data and increasing equipment costs.

[0005] In order to avoid data loss, save costs, and obtain long-term continuous high-quality observation data, a new device is needed that can automatically clean the optical lens of the gas analyzer based on signal strength. This device should be integrated into the existing eddy covariance system to achieve long-term, continuous, and high-quality observation of sea-air flux. Summary of the invention

[0006] The purpose of the present invention is to solve the problems raised in the above background technology, and then proposes an automatic cleaning device for the lens of a gas analyzer for sea-air flux observation.

[0007] The technical solution adopted by the present invention to solve the technical problem is: An automatic cleaning device for the lens of a gas analyzer for sea-air flux observation comprises a fixed frame, a cleaning liquid tank is placed on one side of the fixed frame, the cleaning liquid tank is connected to a control box through a water pipe, the control box is connected to a cleaning machine box through a flushing duct, the cleaning machine box is fixedly connected to the fixed frame, a driving mechanism is arranged in the cleaning machine box, the driving mechanism is connected to an open-circuit gas analyzer and a two-way nozzle, the two-way nozzle is connected to a flushing duct, and two lenses are arranged on the open-circuit gas analyzer.

[0008] Furthermore, the fixing frame includes a vertical rod, a horizontal support plate is provided on the top of the vertical rod, an upper connecting rod is provided on the top of the horizontal support plate, an extension plate is fixedly connected to the upper connecting rod, and a supporting plate is provided on the vertical rod.

[0009] Furthermore, a control box is placed on the supporting plate.

[0010] Furthermore, the control box has a built-in charging controller, a data acquisition controller, a high-pressure pump and a three-way solenoid valve, and the side of the control box is provided with a water inlet, an air inlet, a cleaning machine signal control line interface and an open-circuit gas analyzer signal line interface.

[0011] Furthermore, a water tank joint and a water filling port are provided on the top of the cleaning liquid tank.

[0012] Furthermore, the driving mechanism includes a driving motor and a driving gear, the driving motor is fixedly connected in the cleaning case, the output shaft of the driving motor is connected to the driving gear, an upper slide groove and a lower slide groove are provided on the inner wall of the cleaning case, an upper slide groove is inserted between the two upper slide grooves, and a lower slide groove is inserted between the two lower slide grooves, the upper slide slide is directly above the lower slide slide, an upper rack is provided at the bottom of the upper slide slide, and a lower rack is provided at the top of the lower slide slide, the driving gear is respectively meshed with the upper rack and the lower rack, an open-circuit gas analyzer is installed on the lower slide, a connecting pipe is provided on the upper slide slide, a telescopic pipe is connected to the left end of the connecting pipe, the telescopic pipe is connected to a flushing duct, the right end of the connecting pipe is connected to an oblique pipe, and a two-way nozzle is provided at the end of the oblique pipe.

[0013] Furthermore, the connecting pipe is fixedly connected to the upper slide plate via a clamp.

[0014] Furthermore, upper sliding guide blocks cooperating with the upper sliding grooves are provided on both sides of the upper sliding plate.

[0015] Furthermore, lower sliding guide blocks matching with the lower sliding grooves are provided on both sides of the lower sliding plate.

[0016] Furthermore, the open-circuit gas analyzer includes an analyzer body, wherein an outer connecting rod is respectively provided on the upper and lower sides of the analyzer body, a mounting plate is provided on the outer connecting rod, and a lens is respectively provided on the two mounting plates.

[0017] Furthermore, the oblique tube is inclined to the lower left so that the bidirectional nozzle is located directly in front of the analyzer body.

[0018] Furthermore, a linkage mechanism is provided in the cleaning cabinet, and the linkage mechanism can horizontally rotate the open-circuit gas analyzer by 90°.

[0019] Furthermore, the linkage mechanism includes a fixed rack, a first bevel gear, a second bevel gear and a driven gear. A rotating shaft seat is provided on the lower sliding plate, and a rotating shaft is rotatably connected in the rotating shaft seat. One end of the rotating shaft is fixedly connected to the driven gear, and the other end is fixedly connected to the first bevel gear. A rotating sleeve is provided on the lower sliding plate, and an analyzer body is rotatably connected in the rotating sleeve. A second bevel gear is provided on the left end of the analyzer body, the first bevel gear is meshed with the second bevel gear, the fixed rack is meshed with the driven gear, and the two outlet ends of the bidirectional nozzle are horizontally arranged.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention can automatically judge and clean the gas analyzer lens according to the signal strength, avoiding the high cost of manual periodic cleaning and the inconvenience of offshore operations, and improving the timeliness and accuracy of cleaning; adopting a two-way nozzle for flushing and blowing cleaning avoids the wear of the lens by the lens cleaning paper, prolongs the service life of the open-circuit gas analyzer, and improves the quality of observation data; through the automatic cleaning device, the cleanliness of the gas analyzer lens is guaranteed, thereby ensuring the continuity and accuracy of the measurement data, and providing a guarantee for the long-term, continuous, and high-quality observation of sea-air flux. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 for Figure 1 A partial enlarged view of the middle A; Figure 3 is a structural schematic diagram of the driving mechanism; Figure 4 for Figure 2 A cross-sectional view along the BB direction; Figure 5 This is the internal layout of the control box.

[0022] Figure 6 It is a schematic diagram of the structure on the side of the control box.

[0023] Figure 7 Schematic diagram of the cleaning fluid tank structure.

[0024] Figure 8 is a schematic structural diagram of a second embodiment of the present invention; Fig. 9 It is a structural diagram of the linkage mechanism; Among them: 1. Fixed frame; 11. Vertical rod; 12. Horizontal support plate; 13. Support plate; 14. Upper connecting rod; 15. Extension plate; 2. Cleaning liquid tank; 21. Water tank joint; 22. Water filling port; 3. Control box; 31. Charging controller; 32. Data acquisition controller; 33. High-pressure pump; 34. Three-way solenoid valve; 35. Water inlet; 36. Air inlet; 37. Cleaning machine signal control line interface; 38. Open-circuit gas analyzer signal line interface; 41. Water pipe; 42. Flushing catheter; 5. Cleaning chassis; 51. Upper slide; 52. Lower slide; 6. Open-circuit gas analyzer; 61. analyzer body; 62. external connecting rod; 63. mounting plate; 64. lens; 71. drive motor; 72. drive gear; 73. lower slide plate; 731. lower sliding guide block; 74. lower rack; 75. upper slide plate; 751. upper sliding guide block; 76. upper rack; 81. telescopic tube; 82. clamp; 83. connecting tube; 84. oblique tube; 85. two-way nozzle; 91. fixed rack; 92. rotating shaft seat; 93. rotating shaft; 94. driven gear; 95. first bevel gear; 96. second bevel gear; 97. rotating sleeve. DETAILED DESCRIPTION

[0025] 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 work are within the scope of protection of the present invention. The present invention is further described in combination with the drawings and embodiments: like Figure 1-Figure 7 As shown, an automatic cleaning device for the lens of a gas analyzer for sea-air flux observation comprises a fixed frame 1, a cleaning liquid tank 2 is placed on one side of the fixed frame 1, the cleaning liquid tank 2 is connected to a control box 3 through a water pipe 41, the control box 3 is connected to a cleaning machine box 5 through a flushing duct 42, the cleaning machine box 5 is fixedly connected to the fixed frame 1, a driving mechanism is arranged in the cleaning machine box 5, the driving mechanism is connected to an open-circuit gas analyzer 6 and a two-way nozzle 85, the two-way nozzle 85 is connected to the flushing duct 42, the open-circuit gas analyzer 6 is provided with two lenses 64, and the driving mechanism can make the two-way nozzle 85 and the lens 64 approach or move away from each other.

[0026] In at least one embodiment, the fixing frame 1 includes a vertical rod 11, a horizontal support plate 12 is provided on the top of the vertical rod 11, an upper connecting rod 14 is provided on the top of the horizontal support plate 12, an extension plate 15 is fixedly connected to the upper connecting rod 14, and a supporting plate 13 is provided on the vertical rod 11.

[0027] Furthermore, a control box 3 is placed on the supporting plate 13 .

[0028] In at least one embodiment, the control box 3 has a built-in charging controller 31, a data acquisition controller 32, a high-pressure pump 33 and a three-way solenoid valve 34, and a water inlet 35, an air inlet 36, a cleaning machine signal control line interface 37 and an open-circuit gas analyzer signal line interface 38 are provided on the side of the control box 3.

[0029] As a preferred solution, the model of the data acquisition controller 32 is CR1000X of Campbell Company of the United States, the model of the charging controller 31 is SunSaver-10L of Morningstar Company of the United States, the three-way solenoid valve 34 is a water-gas dual-purpose solenoid valve, the high-pressure pump 33 is a water-gas dual-purpose low-power high-pressure pump, the water inlet 35, the air inlet 36, etc. are all quick connectors, and the cleaning machine signal control line interface 37 and the open-circuit gas analyzer signal line interface 38 are aviation plug connectors.

[0030] In at least one embodiment, Figure 7 As shown, a water tank joint 21 and a water filling port 22 are provided on the top of the cleaning liquid tank 2 .

[0031] In at least one embodiment, the driving mechanism includes a driving motor 71 and a driving gear 72. The driving motor 71 is fixedly connected in the cleaning box 5, and the output shaft of the driving motor 71 is connected to the driving gear 72. An upper slide groove 51 and a lower slide groove 52 are provided on the inner wall of the cleaning box 5. An upper slide plate 75 is inserted between the two upper slide grooves 51, and a lower slide plate 73 is inserted between the two lower slide grooves 52. The upper slide plate 75 is located directly above the lower slide plate 73. An upper rack 76 is provided at the bottom of the upper slide plate 75, and a lower rack 74 is provided at the top of the lower slide plate 73. The driving gear 72 is meshed with the upper rack 76 and the lower rack 74 respectively. An open-circuit gas analyzer 6 is installed on the lower slide plate 73. A connecting pipe 83 is provided on the upper slide plate 75. The left end of the connecting pipe 83 is connected to a telescopic pipe 81, and the telescopic pipe 81 is connected to a flushing conduit 42. The right end of the connecting pipe 83 is connected to an oblique pipe 84, and a two-way nozzle 85 is provided at the end of the oblique pipe 84.

[0032] Furthermore, the connecting pipe 83 is fixedly connected to the upper slide plate 75 via a clamp 82 .

[0033] Furthermore, upper sliding guide blocks 751 cooperating with the upper sliding grooves 51 are provided on both sides of the upper sliding plate 75 .

[0034] Furthermore, lower sliding guide blocks 731 matching with the lower sliding grooves 52 are provided on both sides of the lower sliding plate 73 .

[0035] Furthermore, the open-circuit gas analyzer 6 comprises an analyzer body 61 , and an outer connecting rod 62 is respectively provided on the upper and lower sides of the analyzer body 61 , and a mounting plate 63 is provided on the outer connecting rod 62 , and a lens 64 is respectively provided on the two mounting plates 63 .

[0036] Further, such as Figure 4 As described, viewed along the BB direction, the oblique tube 84 is inclined to the lower left so that the two-way nozzle 85 is located directly in front of the analyzer body 61. In this way, when the driving mechanism is activated, the two-way nozzle 85 moves to the right while the two lenses 64 move to the left, so that the two-way nozzle 85 is located in the middle of the two lenses 64 to facilitate the cleaning of the lenses.

[0037] In working mode, the charging controller 31 supplies power to the open-circuit gas analyzer 6 and the data acquisition controller 32. The open-circuit gas analyzer 6 is connected to the data acquisition controller 32 through the open-circuit gas analyzer signal line interface 38. The data acquisition controller 32 collects the real-time data of the open-circuit gas analyzer 6 and the signal strength of the analyzer lens in real time. When the signal strength is lower than a preset threshold (such as 0.8), a cleaning instruction is sent to the charging controller 31.

[0038] After receiving the command, the charging controller 31 controls the three-way solenoid valve 34 to switch to the cleaning liquid channel and starts the high-pressure pump 33. The cleaning liquid in the cleaning liquid tank 2 is transported to the two-way nozzle 85 through the water pipe 41, the three-way solenoid valve 34 and the high-pressure pump 33 through the flushing conduit 42.

[0039] The driving motor 71 is started, driving the driving gear 72 to rotate. The driving gear 72 is meshed with the upper rack 76 and the lower rack 74, respectively, so that the upper slide plate 75 and the lower slide plate 73 are moved closer to or away from each other. The upper slide plate 75 drives the two-way nozzle 85 to move rightward, and the lower slide plate 73 drives the open-circuit gas analyzer 6 to move leftward, so that the two-way nozzle 85 gradually approaches the two lenses 64.

[0040] When the two-way nozzle 85 reaches the appropriate position, the high-pressure pump 33 sprays the cleaning liquid from the two-way nozzle 85 at a certain pressure to flush the two lenses 64. After flushing for a period of time, the three-way solenoid valve 34 switches to the gas channel, and the high-pressure pump 33 sends high-pressure gas through the air inlet 36 on the side of the control box 3, the three-way solenoid valve 18, the high-pressure pump 17, and the flushing conduit 5 to the two-way nozzle 85 to blow away the dust or condensed water droplets remaining on the lens 64, so as to achieve the purpose of thorough cleaning.

[0041] After cleaning is completed, the driving motor 71 is reversed, the upper slide plate 75 and the lower slide plate 73 are reset, and the two-way nozzle 85 is separated from the lens 64. The three-way solenoid valve 34 returns to the initial state, and the device waits for the next cleaning instruction.

[0042] After one cleaning is completed, if the signal strength value of the open-circuit gas analyzer is still lower than the set threshold, the acquisition controller 32 will control the three-way solenoid valve 34 again to connect the cleaning liquid and air in the cleaning liquid tank 2 in turn, and rinse and purge the lens 64 again, and repeat this process.

[0043] Because the two lenses 64 are arranged vertically, this design allows the two-way nozzle 85 to spray water, and part of the water will be sprayed onto the mounting plate 63. After blowing, sometimes some water will remain on the upper surface of the mounting plate 63, and the water will drip along the edge of the upper lens 64 to the lower lens 64, such as Figure 8 and Fig. 9 As shown, in this embodiment, the open circuit gas analyzer 6 can be horizontally rotated 90°, thereby eliminating this defect.

[0044] Specifically, a linkage mechanism is provided in the cleaning box 5 , and the linkage mechanism can enable the open-circuit gas analyzer 6 to rotate horizontally by 90°.

[0045] The linkage mechanism includes a fixed rack 91, a first bevel gear 95, a second bevel gear 96 and a driven gear 94. A rotating shaft seat 92 is provided on the lower slide 73. A rotating shaft 93 is rotatably connected in the rotating shaft seat 92. One end of the rotating shaft 93 is fixedly connected to the driven gear 94, and the other end is fixedly connected to the first bevel gear 95. A rotating sleeve 97 is provided on the lower slide 73. The analyzer body 61 is rotatably connected in the rotating sleeve 97. The left end of the analyzer body 61 is provided with a second bevel gear 96. The first bevel gear 95 is meshed with the second bevel gear 96, and the fixed rack 91 is meshed with the driven gear 94. In coordination with this, the two outlet ends of the two-way nozzle 85 are horizontally arranged to cooperate with the position of the lens 64 of the open-circuit gas analyzer 6 after the horizontal rotation of 90°.

[0046] When the driving mechanism is in operation, not only can the two-way multifunctional nozzle 85 move to the right while the two lenses 64 move to the left, but the existence of the linkage mechanism can also cause the open-circuit gas analyzer 6 to rotate horizontally 90° at the same time. Since the connecting tube 83 is located at the upper right of the analyzer body 61 when viewed along the BB direction, the oblique tube 84 is inclined to the lower left so that the two-way nozzle 85 is located directly in front of the analyzer body 61. When the gas analyzer 6 rotates 90° counterclockwise so that the two lenses 64 are horizontal, it will not interfere with the connecting tube 83 and the oblique tube 84, so that the two-way nozzle 85 is located in the middle of the two lenses 64 to facilitate the cleaning of the lenses.

[0047] Working mode, the data acquisition controller 32 collects signal strength data in real time, and sends a cleaning instruction to the charging controller 31 when the signal strength is lower than the threshold. After receiving the instruction, the charging controller 31 switches the three-way solenoid valve 34 and starts the high-pressure pump 33, so that the cleaning liquid is delivered to the two-way nozzle 85. The drive motor 71 is started, driving the drive gear 72 to rotate, so that the upper slide 75 and the lower slide 73 are close to each other, the two-way nozzle 85 moves to the right, and the open-circuit gas analyzer 6 moves to the left. At the same time, the driven gear 94 on the lower slide 73 rotates under the action of the fixed rack 91, driving the rotating shaft 93 and the first bevel gear 95 to rotate. The first bevel gear 95 is meshed with the second bevel gear 96, so that the analyzer body 61 rotates 90° counterclockwise around the rotating sleeve 97, and the two lenses 64 are in a horizontal position. After the two-way nozzle 85 reaches the appropriate position, the horizontally placed lens 64 is rinsed and blown clean, avoiding the problem of residual water on the mounting plate dripping onto the lens below. After cleaning is completed, the driving motor 71 reverses, the upper slide plate 75 and the lower slide plate 73 are reset, and the two-way nozzle 85 is separated from the lens 64. At the same time, under the action of the linkage mechanism, the analyzer body 61 rotates 90° clockwise and returns to the initial position. The three-way solenoid valve 34 returns to the initial state, and the device waits for the next cleaning instruction.

[0048] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. An automatic cleaning device for the lens of a gas analyzer for sea-air flux observation, characterized in that: It includes a fixed frame, a cleaning liquid tank is placed on one side of the fixed frame, the cleaning liquid tank is connected to a control box through a water pipe, the control box is connected to a cleaning machine box through a flushing duct, the cleaning machine box is fixedly connected to the fixed frame, a driving mechanism is arranged in the cleaning machine box, the driving mechanism is connected to an open-circuit gas analyzer and a two-way nozzle, the two-way nozzle is connected to a flushing duct, and two lenses are arranged on the open-circuit gas analyzer.

2. The automatic cleaning device for the lens of a gas analyzer for sea-air flux observation according to claim 1 is characterized in that: The fixing frame comprises a vertical rod, a horizontal support plate is arranged on the top of the vertical rod, an upper connecting rod is arranged on the top of the horizontal support plate, an extension plate is fixedly connected to the upper connecting rod, and a supporting plate is arranged on the vertical rod.

3. The automatic cleaning device for the lens of a gas analyzer for sea-air flux observation according to claim 1 is characterized in that: The driving mechanism includes a driving motor and a driving gear, the driving motor is fixedly connected in the cleaning case, the output shaft of the driving motor is connected to the driving gear, an upper slide groove and a lower slide groove are provided on the inner wall of the cleaning case, an upper slide plate is inserted between the two upper slide grooves, and a lower slide plate is inserted between the two lower slide grooves, the upper slide plate is directly above the lower slide plate, an upper rack is provided at the bottom of the upper slide plate, and a lower rack is provided at the top of the lower slide plate, the driving gear is respectively meshed with the upper rack and the lower rack, an open-circuit gas analyzer is installed on the lower slide plate, a connecting pipe is provided on the upper slide plate, a telescopic pipe is connected to the left end of the connecting pipe, the telescopic pipe is connected to a flushing conduit, the right end of the connecting pipe is connected to an oblique pipe, and a two-way nozzle is provided at the end of the oblique pipe.

4. The automatic cleaning device for the lens of a gas analyzer for sea-air flux observation according to claim 3 is characterized in that: The connecting pipe is fixedly connected to the upper slide plate through a clamp.

5. The automatic cleaning device for the lens of a gas analyzer for sea-air flux observation according to claim 3 is characterized in that: Upper sliding guide blocks matching with the upper sliding grooves are arranged on both sides of the upper sliding plate.

6. The automatic cleaning device for the lens of a gas analyzer for sea-air flux observation according to claim 3 is characterized in that: Lower sliding guide blocks matching with the lower sliding grooves are arranged on both sides of the lower sliding plate.

7. The automatic cleaning device for the lens of a gas analyzer for sea-air flux observation according to claim 1 is characterized in that: The open-circuit gas analyzer comprises an analyzer body. An outer connecting rod is respectively arranged on the upper and lower sides of the analyzer body. A mounting plate is arranged on the outer connecting rod. A lens is respectively arranged on the two mounting plates.

8. The automatic cleaning device for the lens of a gas analyzer for sea-air flux observation according to claim 3 is characterized in that: The oblique tube is inclined to the lower left so that the bidirectional nozzle is located directly in front of the analyzer body.

9. The automatic cleaning device for the lens of a gas analyzer for sea-air flux observation according to claim 8, characterized in that: A linkage mechanism is provided in the cleaning cabinet, and the linkage mechanism can make the open-circuit gas analyzer rotate horizontally by 90°.

10. The automatic cleaning device for the lens of a gas analyzer for sea-air flux observation according to claim 9, characterized in that: The linkage mechanism includes a fixed rack, a first bevel gear, a second bevel gear and a driven gear. A rotating shaft seat is provided on the lower sliding plate, and a rotating shaft is rotatably connected in the rotating shaft seat. One end of the rotating shaft is fixedly connected to the driven gear, and the other end is fixedly connected to the first bevel gear. A rotating sleeve is provided on the lower sliding plate, and an analyzer body is rotatably connected in the rotating sleeve. A second bevel gear is provided on the left end of the analyzer body. The first bevel gear is meshed with the second bevel gear, and the fixed rack is meshed with the driven gear. The two outlet ends of the two-way nozzle are horizontally arranged.

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