Intelligent robot for hydrogen leakage detection

Abstract

The invention discloses an intelligent robot for hydrogen leakage detection, belongs to the technical field of hydrogen related equipment, and solves the problems of insufficient accuracy and poor timeliness of an existing detection method. According to the technical scheme, the automatic inspection device comprises an automatic inspection vehicle body, a spectrum detection assembly and a lifting part which are installed on the automatic inspection vehicle body, and a gas pool assembly connected with the lifting part, and the gas pool assembly comprises an annular gas pool with a laser reflection structure and a micro air pump connected with the annular gas pool; the micro air pump sucks gas to be detected into the annular gas pool, the spectrum detection assembly comprises a laser emitter, a laser detector and a data processor, the laser emitter emits laser with a set wavelength and emits the laser into an inner cavity of the annular gas pool, and the laser reflection structure reflects the laser and then emits the laser out of the annular gas pool. The laser detector captures laser emitted from the annular gas cell and transmits laser information data to the data processor, and the data processor carries out spectral analysis on the obtained laser information.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of hydrogen-related equipment, and particularly relates to a hydrogen leakage detection intelligent robot. BACKGROUND

[0002] Hydrogen (H2) is positioned as a key solution to the decarbonization challenge in the energy and transportation sectors. While hydrogen is a clean and versatile energy carrier, it poses significant safety risks due to its wide flammability and high explosion potential. Hydrogen leakage can occur throughout the hydrogen value chain, including production, storage, transportation, and utilization. Therefore, an effective leakage detection system is crucial for the safe handling, storage, and transportation of hydrogen. The current hydrogen detection equipment usually adopts sampling analysis method and electrochemical sensor method. The sampling method places the gas to be tested in the laboratory and analyzes the collected gas samples using chemical analysis method to determine the composition and concentration of the gas. The disadvantage of this method is that it cannot reflect the change of air quality in time, which greatly reduces the accuracy and timeliness of the measurement results. The electrochemical sensor method detects the gas to be tested and determines the concentration of the gas by the change of the current or voltage feedback of the sensor. However, the disadvantage of this method is that the sensor has a limited lifespan and is easily disturbed.

[0003] In summary, the conventional gas detection methods have the problems of low accuracy, poor timeliness, limited sensor lifespan, etc.

[0004] In addition, the hydrogen detection equipment used in the conventional gas detection method has a fixed position, and the detection accuracy is limited. SUMMARY

[0005] In view of the deficiencies in the prior art, the technical problem to be solved by the present application is to provide a hydrogen leakage detection intelligent robot, which solves the problems of insufficient accuracy and poor timeliness of the detection method in the prior art, and can realize gas detection at any height within any range.

[0006] To solve the above technical problems, the present application adopts the following technical solutions: The application discloses a hydrogen leakage detection intelligent robot, which comprises an automatic inspection vehicle body provided with a driving component, a spectrum detection assembly and a lifting component installed on the automatic inspection vehicle body, and a gas pool assembly connected with the lifting component, wherein the gas pool assembly comprises a ring-shaped gas pool provided with a laser reflection structure and a micro air pump connected with the ring-shaped gas pool; the micro air pump is used for sucking the gas to be detected into the ring-shaped gas pool; the spectrum detection assembly comprises a laser emitter, a laser detector and a data processor; the laser emitter emits laser beams with a set wavelength and emits the laser beams into the inner cavity of the ring-shaped gas pool; the laser reflection structure reflects the laser beams and then emits the laser beams out of the ring-shaped gas pool; the laser detector captures the laser beams emitted out of the ring-shaped gas pool and transmits the laser information data into the data processor; the data processor is used for performing spectrum analysis on the obtained laser information; the driving component is used for driving the automatic inspection vehicle body to move; and the lifting component is used for driving the gas pool assembly to lift.

[0007] Preferably, the intelligent robot further comprises a dust filtering channel provided with a dust filtering screen, wherein the input end of the dust filtering channel is connected with the micro air pump, and the output end of the dust filtering channel is connected with the ring-shaped gas pool.

[0008] Preferably, the dust filtering channel comprises a cylindrical part, a flange connecting part connected with the outer circle of the second end of the cylindrical part and a gas channel penetrating through the middle of the cylindrical part; the dust filtering screen is installed at the first end of the cylindrical part; and the flange connecting part is provided with a positioning hole, which is used for being connected with the ring-shaped gas pool through a fastener.

[0009] Preferably, the laser reflection structure comprises a plurality of reflecting mirrors distributed in the circumferential direction of the inner wall of the ring-shaped gas pool; the incident laser beams are continuously reflected through the plurality of reflecting mirrors; a through hole is formed in the side wall of the ring-shaped gas pool; and an optical lens is installed at the through hole, which simultaneously serves as an incident port and an emission port.

[0010] Preferably, the intelligent robot further comprises a gas chamber, wherein the gas chamber is provided with a dust filtering channel interface connected with the dust filtering channel and a gas inlet connected with the micro air pump.

[0011] Preferably, the ring-shaped gas pool and the dust filtering channel are both provided with two; the left and right sides of the gas chamber are symmetrically provided with two dust filtering channel interfaces; and the gas inlet is arranged at the front side of the gas chamber.

[0012] Preferably, the gas chamber is provided with a gas chamber filter screen in the inner side of the dust filtering channel interface.

[0013] Preferably, the gas chamber is a cuboid, the two dust filtering channel interfaces are correspondingly arranged at the length sides of the cuboid, the gas inlet is arranged at the middle position of one side of the width of the cuboid, and the gas chamber filter screen is a rectangular body and covers the length direction section of the cuboid.

[0014] Preferably, the annular gas cell is provided with a fiber channel for laser transmission between the annular gas cell and the spectral detection assembly; and / or the bottom of the lifting component is fixed on the shell of the spectral detection assembly by a positioning ring, and the top of the lifting component is connected with the gas chamber.

[0015] Preferably, the shell of the spectral detection assembly is provided with a data interface and a heat dissipation structure.

[0016] The present application has the following technical effects by adopting the above technical solutions: On the one hand, the annular gas cell is used in combination with the micro air pump to effectively control the filling amount of the sample gas into the annular gas cell, and effectively avoid the situation that the sample gas is filled too much or too little; on the other hand, the spectral detection assembly is used to detect the gas composition, after the gas reaches the annular gas cell, the laser emitter of the annular gas cell lens emits laser of a specific wavelength through the fiber channel into the annular cavity of the annular gas cell, the laser is emitted from the lens by the reflector in the annular multi-optical path absorption light path, then the laser detector captures the emitted laser through the fiber channel and transmits the information data carried by the laser into the data processor, the data processor performs spectral analysis on the obtained information to realize spectral detection of the pipeline leakage gas, and the wavelength modulation method in the TDLAS technology is used for concentration inversion, which has high sensitivity and good accuracy compared with the direct absorption spectrum technology, can effectively ensure the accuracy of the detection result, and can improve the detection efficiency and ensure the timeliness. Therefore, the hydrogen leakage detection intelligent robot can monitor the gas composition and concentration in real time, can quickly reflect the change of air quality, and can provide more timely and accurate data support for pipeline leakage gas.

[0017] Further, in order to prevent dust or other solid particles in the gas from entering the annular gas cell and ensure the accuracy of the detection result, a dust filtering channel is also provided. After the micro air pump inhales the gas, the filter screen provided in the dust filtering channel can effectively filter out the relatively large impurities in the air to improve the accuracy of the detection result.

[0018] In addition, the detection is carried out in a double-channel mode, the annular gas cell and the dust filtering channel are each provided with two, and two fiber channels are correspondingly provided, the sample gas is controlled by the micro air pump to enter the two annular gas cells in two paths, and is detected by the spectral detection assembly through the two fiber channels, so that the amount of information of the data is increased and the sensitivity of the detection is improved.

[0019] The hydrogen leakage detection part is carried on the automatic inspection vehicle body with a driving component to form an intelligent robot, which can be moved to a corresponding detection position, and cooperates with the adjustable lifting component to realize lifting of the gas cell assembly and gas detection at any height in any range.

[0020] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and accompanying drawings. Attached Figure Description

[0021] The invention will be further described below with reference to the accompanying drawings: Figure 1 A schematic diagram of the overall structure of the intelligent robot for detecting hydrogen leaks; Figure 2 This is a schematic diagram of the dust filtration channel structure in this invention; Figure 3 This is a schematic diagram of the internal structure of the gas chamber in this invention; Figure 4 This is a schematic diagram of the micro air pump structure in this invention; Figure 5 This is a schematic diagram of the annular gas pool structure in this invention; Figure 6 This is a top view of the annular gas pool structure in this invention; Figure 7 This is a schematic diagram of the optical path distribution structure of the annular gas cell in this invention; Figure 8 This is a schematic diagram of the optical fiber channel in this invention; Figure 9 This is a schematic diagram of the bolts in this invention; Figure 10 This is a schematic diagram of the spectral detection component in this invention; Figure 11 This is a schematic diagram of the spectral detection component in this invention; In the diagram: 1. Dust filter channel; 1-1. Flange connection; 1-2. Gas channel; 1-3. Dust filter channel positioning hole; 1-4. Dust filter screen; 2. Miniature air pump; 2-1. Air chamber; 2-2. Air chamber filter screen; 2-3. Gas inlet; 2-4. Dust filter channel interface; 3. Annular gas pool; 3-1. Annular gas pool sidewall; 3-2. Reflector; 3-3. Optical lens; 3-4. Gas pool positioning hole; 4. Lifting component; 5. Fiber optic channel; 6. Positioning ring; 7. Spectroscopic detection component; 8. Data interface; 9. Heat dissipation structure; 10. Automatic inspection vehicle body; 11. Drive component; 12. First cylindrical connection; 13. Second cylindrical connection; 14. Air pump positioning hole; 15. Air pump connecting shaft; 16. Fan blade; 17. Incident fiber optic; 18. Outgoing fiber optic; 19. Fiber optic; 21. Bolt; 22. Fiber optic channel hole; 23. Data processor; 24. Connecting cable; 25. Laser detector; 26. Laser emitter. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of the present invention and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of the present invention.

[0023] Those skilled in the art will understand that, without conflict, the features in the following embodiments and implementations can be combined with each other.

[0024] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. For example, terms such as "upper," "lower," "front," and "rear" that indicate orientation or positional relationship are based solely on the orientation or positional relationship shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device / element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention.

[0025] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "fixation," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0026] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0027] like Figures 1 to 11As shown, a hydrogen leak detection device is mounted on a robot body, forming a hydrogen leak detection intelligent robot. The hydrogen leak detection device includes a gas pool assembly and a spectral detection assembly 7. The gas pool assembly includes a miniature air pump 2, a gas chamber 2-1, a dust filter channel 1, and an annular gas pool 3. The dust filter channel 1 connects the gas chamber 2-1 and the annular gas pool 3, and has a dust filter screen 1-4. The gas chamber 2-1 has a dust filter channel interface 2-4 connected to the dust filter channel 1 and a gas inlet 2-3 connected to the miniature air pump 2. The annular gas pool 3 has an annular cavity, with an optical lens 3-3 on the sidewall and a laser reflection structure on the inner wall. The spectral detection assembly 7 includes a housing and a laser emitter 26, a laser detector 25, and a data processor 23 housed within the housing. The robot body includes an automatic inspection vehicle body 10 with a drive component 11 and a positioning device to achieve autonomous walking and positioning. In addition, the robot body is also equipped with a structure that cooperates with the gas pool component and the spectral detection component 7, including a lifting component 4, an optical fiber channel 5, a positioning ring 6, a data interface 8, etc.

[0028] The drive unit can move the robot to any position. It works in conjunction with its dust filter channel, air chamber, and micro air pump to efficiently collect the gas to be tested. The gas passes through the filter screen of the air chamber and dust filter channel into the annular gas pool. At this time, the laser emitter in the spectral detection component emits laser light through the fiber optic channel, which passes through the optical lens and enters the annular gas pool to form a specific optical path to detect the gas to be tested. At the same time, the laser detector of the spectral detection component receives the laser light transmitted through the fiber optic channel and transmits the data to the data processor through the connecting line. The data is then processed to determine the concentration of the gas to be tested.

[0029] On the one hand, the gas pool assembly employs a ring-shaped gas pool combined with a micro-pump, which effectively controls the amount of sample gas injected into the ring-shaped gas pool, preventing over- or under-injection of sample gas. On the other hand, a spectral detection component is used to detect the gas composition, employing wavelength modulation methods in TDLAS technology for concentration inversion. Compared to direct absorption spectroscopy, this method offers higher sensitivity and accuracy, ensuring both accurate detection results and improved efficiency and timeliness. Therefore, this intelligent robot for hydrogen leak detection can monitor gas composition and concentration in real time, rapidly reflecting changes in air quality and providing more timely and accurate data support for leaking gas from pipelines.

[0030] In some embodiments, a dual-channel mode is used for detection. This mode employs only one gas chamber 2-1 and one micro-pump 2. Two annular gas cells 3 and two dust filter channels 1 are provided, each with a corresponding fiber optic channel 5. The two dust filter channels 1 are distributed on the left and right sides of the gas chamber, forming a symmetrical structure. Each dust filter channel 1 is connected to one of the two annular gas cells 3. The micro-pump 2 controls the sample gas to enter the two annular gas cells 3 in two separate paths, and then, via the two fiber optic channels 5, is detected by the spectral detection component 7. This increases the amount of data information and improves the detection sensitivity.

[0031] In some embodiments, the bottom of the lifting component 4 is fixed to the housing of the spectral detection assembly via a positioning ring 6, and the top of the lifting component is connected to the gas chamber 2-1. The lifting component can employ a linear actuator, allowing the gas chamber assembly to collect gas at different heights through lifting and lowering. Since the robot can move to the corresponding detection position and cooperate with the adjustable lifting component to lift and lower the gas pool assembly, gas detection at any height within any range can be achieved.

[0032] In addition, the spectral detection component 7 is equipped with a heat dissipation structure 9 to prevent the data processor from overheating and damaging the device; for example, heat dissipation holes are provided on the housing of the spectral detection component. Furthermore, the data interface 8 can receive information from the data processor and transmit it to the PC for subsequent processing.

[0033] To prevent dust or other solid particles in the gas from entering the annular gas cell and to ensure the accuracy of the test results, a dust filtration channel was installed. Figure 2 The dust filter channel 1 shown includes a cylindrical portion, a flange connecting portion 1-1 connected to the outer circle of the second end of the cylindrical portion, and a gas channel 1-2 penetrating the middle of the cylindrical portion. The dust filter 1-4 is installed at the first end of the cylindrical portion, and the first end of the cylindrical portion is connected to the dust filter channel interface 2-4, which is the air inlet side. The dust filter can further filter out large particulate impurities such as dust. The flange connecting portion 1-1 is provided with a dust filter channel positioning hole 1-3, which is used to connect and fix the two together with the annular gas pool 3 by fasteners, such as bolts.

[0034] like Figure 3 The gas chamber 2-1 shown is rectangular in shape, extending along its length (left-right). Both sides have dust filter channel interfaces 2-4, connecting to the cylindrical portion of the dust filter channel. A gas inlet 2-3 is located in the center of the front side for drawing in the gas to be tested. The interior has a symmetrical structure, with a layer of gas chamber filter screens 2-2 on both sides, located inside the dust filter channel interfaces. These screens initially filter out impurities from the gas before it enters the dust filter channel. The main function of the gas chamber is to temporarily store the gas to be tested and then deliver it into the dust filter channel for subsequent processing.

[0035] likeFigure 4 The miniature air pump 2 shown primarily functions to draw leaked gas into the air chamber. It has a first cylindrical connecting part 12 and a second cylindrical connecting part 13. The diameter of the first cylindrical connecting part 12 is larger than that of the second cylindrical connecting part 13, forming a stepped column structure. The second cylindrical connecting part 13 has an air pump positioning hole 14, to which a bolt 21 is connected for mounting and fixing the miniature air pump within the air chamber. The specific mounting position is between the two air chamber filters 2-2. Furthermore, the fan blade 16 of the miniature air pump is connected to the air pump connecting shaft 15.

[0036] like Figure 5 The annular gas cell shown includes a laser reflection structure comprising several reflectors 3-2 circumferentially distributed along the sidewall 3-1 of the annular gas cell. Each reflector 3-2 is rectangular and identical in size. Taking 12 reflectors 3-2 as an example, the 12 reflectors 3-2 on the inner wall of the annular gas cell form an equilateral dodecagonal structure. The incident laser is reflected by these 12 reflectors 3-2, enabling the laser to form a specific optical path, increasing the contact area between the laser and the gas to be measured, and enhancing the accuracy of information acquisition and spectral detection. Additionally, a through-hole is formed in the sidewall of the annular gas cell, at which an optical lens 3-3 is installed, allowing both incident and outgoing light to pass through. In operation, the annular gas cell is axially parallel to the horizontal plane, with the optical lens 3-3 facing downwards to connect with the fiber optic channel 5.

[0037] like Figure 6 The top view of the annular gas pool shown indicates that the annular gas pool has 12 axially penetrating gas pool positioning holes 3-4, evenly distributed along the circumference of the annular gas pool 3. These holes can be connected to the flange connection part 1-1 via bolts 21, thus fixing the annular gas pool 3 to the dust filter channel 1. This ensures that the annular gas pool is integrally fixed with other components of the gas pool assembly, improving the overall system stability.

[0038] like Figure 7 The diagram shows the optical path distribution within the annular gas cell. The incident laser enters the annular gas cell via incident fiber 17, and the outgoing laser exits the annular gas cell and enters the laser detector 25 via exiting fiber 18. The optical path layout design principles are non-repetitive, multiple optical path crossings, and a long effective absorption path. Simulations are performed on multi-path absorption optical paths considering variables such as projection angle and the number of projected rays. Ray tracing is used to study the influence mechanism of optical path arrangement, optical window parameters, and polarization loss due to refraction on laser transmission. The correlation between the number of rays, projection angle, and concentration inversion accuracy is established, and the optimal optical path arrangement scheme is determined.

[0039] like Figure 8The fiber optic channel 5 shown is equipped with an optical fiber 19, which connects the annular gas cell 3 and the spectral detection component 7. This allows the laser emitter 26 to project laser light into the annular gas cell 3 via the optical fiber 19 and the fiber optic channel. Simultaneously, the laser light emitted from the annular gas cell 3 can be sent to the laser detector 25 via the fiber optic channel. In operation, the fiber optic channel 5 is vertically positioned, with its upper end connected to the optical lens 3-3.

[0040] like Figure 9 The bolt 21 shown is a conventional hexagonal bolt, whose threads can connect various devices, such as an annular gas pool and a dust filter channel, through the locating hole.

[0041] like Figure 10 and Figure 11 The schematic diagram of the spectral detection component shown illustrates that the spectral detection component 7 houses a laser emitter 26 and a laser detector 25 within its housing. The light emitted by the laser emitter 26 is transmitted through an optical fiber 19 into an annular gas cell for detection. The laser detector 25 receives the laser signal transmitted via the optical fiber and transmits it to the data processor 23 via a connecting cable 24. The information can then be sent to an external computer via a data interface 8 for further data processing. A fiber optic channel hole 22 is provided at the top of the housing for the optical fiber channel 5 to pass through, and one data processor 23 can be shared.

[0042] Laser absorption spectroscopy is based on Beer Lambert's law. Its detection process uses the ratio elimination method of the second harmonic and first harmonic signals to eliminate the influence of light intensity. The signal after elimination is the detection signal, and the concentration is inverted based on the spectrum of the signal.

[0043] Tunable diode laser absorption spectroscopy (TDLAS) utilizes the wavelength tuning characteristics of a diode laser to obtain the absorption spectrum of a selected characteristic absorption line of a analyte gas, thereby enabling qualitative or quantitative analysis of the gas. Because trace gases are present in very low concentrations and have weak absorption signals, second harmonic detection using lock-in amplifiers has been widely applied to the detection of atmospheric trace gases using Tunable diode laser absorption spectroscopy. According to Lambert-Beer's absorption law, the intensity emitted by the laser is... , frequency is A monochromatic laser, after passing through an absorbing medium of length l, has an intensity measured at the receiving end as... (1) Where l is the optical path length of the sample cell. is the absorption cross section, and c is the number concentration of the absorbing gas molecules. For near-infrared molecular absorption, it generally satisfies... Therefore, formula (1) can be approximated as: (2) That is, the change in light intensity after gas absorption is linearly related to the concentration and optical path length. To improve the system's detection sensitivity, a lock-in amplifier is often used to process the absorption signal. Analysis of the resulting second harmonic signal is as follows: (3) Where σ0 is the absorption cross section and N is the gas molecule number density.

[0044] Based on the above embodiments, the intelligent robot for hydrogen leak detection of this invention utilizes the mid-wavelength modulation method of TDLAS technology for concentration inversion, which offers higher sensitivity and accuracy compared to direct absorption spectroscopy. When the gas concentration inside the detection pipeline is low, a micro-pump can be used to increase the concentration of the gas to be measured before further processing to obtain the gas concentration value. This can meet the detection requirements of complex environments with non-uniform flow fields, a capability not found in existing laser online detection instruments.

[0045] The above description is merely a specific embodiment of the invention, but the scope of protection of the invention is not limited thereto. Those skilled in the art should understand that the invention includes, but is not limited to, the contents described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of the invention will be included within the scope of the claims.

Claims

1. A hydrogen leakage detection intelligent robot, characterized in that, The application relates to an automatic inspection vehicle body with a driving component, a spectrum detection assembly and a lifting component installed on the automatic inspection vehicle body, and a gas pool assembly connected with the lifting component, wherein the gas pool assembly comprises a ring-shaped gas pool with a laser reflection structure and a micro air pump connected with the ring-shaped gas pool; the micro air pump sucks the gas to be detected into the ring-shaped gas pool; the spectrum detection assembly comprises a laser emitter, a laser detector and a data processor; the laser emitter emits laser beams with a set wavelength and emits the laser beams into the inner cavity of the ring-shaped gas pool; the laser reflection structure reflects the laser beams and then emits the laser beams from the ring-shaped gas pool; the laser detector captures the laser beams emitted from the ring-shaped gas pool and transmits the laser information data into the data processor; the data processor performs spectrum analysis on the obtained laser information; the driving component is used for driving the automatic inspection vehicle body to move; and the lifting component is used for driving the gas pool assembly to lift.

2. The intelligent robot for hydrogen leak detection as claimed in claim 1, wherein, The intelligent robot further comprises a dust filtering channel with a dust filtering screen, wherein the input end of the dust filtering channel is connected with the micro air pump, and the output end is connected with the ring-shaped gas pool.

3. The intelligent robot for hydrogen leak detection as claimed in claim 2, wherein, The dust filtering channel comprises a cylindrical part, a flange connecting part connected with the outer circle of the second end of the cylindrical part, and a gas channel penetrating through the middle of the cylindrical part; the dust filtering screen is installed at the first end of the cylindrical part; the flange connecting part is provided with a positioning hole for being connected with the ring-shaped gas pool through a fastener.

4. The intelligent robot for hydrogen leak detection as claimed in claim 1, wherein, The laser reflection structure comprises a plurality of reflecting mirrors distributed along the circumferential direction of the inner wall of the ring-shaped gas pool; the incident laser beams are continuously reflected through the plurality of reflecting mirrors; a through hole is formed in the side wall of the ring-shaped gas pool; and an optical lens is installed at the through hole, which simultaneously serves as an incident port and an exit port.

5. The intelligent robot for hydrogen leak detection as claimed in claim 2, wherein, The intelligent robot further comprises a gas chamber, wherein the gas chamber is provided with a dust filtering channel interface connected with the dust filtering channel and a gas inlet connected with the micro air pump.

6. The intelligent robot for hydrogen leak detection as claimed in claim 5, wherein, The ring-shaped gas pool and the dust filtering channel are both provided with two; the left and right sides of the gas chamber are symmetrically provided with two dust filtering channel interfaces; and the gas inlet is arranged at the front side of the gas chamber.

7. The intelligent robot for hydrogen leak detection as claimed in claim 6, wherein, The gas chamber is provided with a gas chamber filter screen inside the dust filtering channel interface.

8. The intelligent robot for hydrogen leak detection as claimed in claim 7, wherein, The gas chamber is a cuboid, the two dust filtering channel interfaces are correspondingly arranged at the length sides of the cuboid, the gas inlet is arranged at the middle position of one side of the width of the cuboid, and the gas chamber filter screen is a rectangular body and covers the length direction section of the cuboid.

9. The intelligent robot for hydrogen leak detection as claimed in claim 5, wherein, An optical fiber channel for transmitting laser beams is arranged between the ring-shaped gas pool and the spectrum detection assembly; and / or the bottom of the lifting component is fixed on the shell of the spectrum detection assembly through a positioning ring, and the top of the lifting component is connected with the gas chamber.

10. The intelligent robot for hydrogen leak detection as claimed in claim 9, wherein, The shell of the spectrum detection assembly is provided with a data interface and a heat dissipation structure.

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