Outdoor portable earth surface methane infrared gas analyzer

Abstract

The utility model provides a portable earth surface methane infrared ray gas analyzer used in the field, which belongs to the technical field of infrared ray gas analysis, and comprises a processing mechanism which comprises a storage groove box and a moisture absorption assembly used for drying processing; the moisture absorption assembly comprises a limiting shell sleeve and a connecting plate fixedly installed on the outer side of the limiting shell sleeve. Through the collaborative design of the protection mechanism, the processing mechanism and the positioning mechanism, the stability, the anti-interference performance and the portability of the instrument in a field complex environment are remarkably improved; the processing mechanism realizes 2,400 mm optical path and 1ppm high-resolution detection through a multi-reflection gas chamber and a gas filtering related technology, and a built-in gas pump ensures quick response; the positioning mechanism realizes rapid installation and stable fixation of the moisture absorption assembly, and optimizes internal drying treatment. The overall structure is compact, the aseismic design adapts to the complex field environment, and the requirements for high precision and high efficiency of earthquake monitoring and field operation are met.

Description

Technical Field

[0001] The utility model belongs to the technical field of infrared gas analysis, and particularly relates to a portable surface methane infrared gas analyzer for the field. Background Technique

[0002] The surface methane infrared gas analyzer is a device designed for seismic monitoring and methane concentration detection. Based on the infrared absorption spectroscopy technology, it analyzes the surface methane concentration by measuring the absorption intensity of methane molecules to infrared light of a specific wavelength. This device is mainly used for data collection in complex field environments and is applicable to fields such as geological exploration, environmental monitoring, and disaster warning, providing technical support for earthquake precursor research and natural gas leakage detection.

[0003] Currently, in the gas detection chamber, the measurement results of methane gas may fluctuate due to uneven diffusion or unstable flow rate, especially under low flow rate or complex air flow conditions. Moreover, in the field environment, water vapor or moisture is likely to be generated inside the surface methane infrared gas analyzer, which may have multiple impacts on the device performance. First of all, the water vapor will adhere to the optical window or mirror surface, forming a water film or fogging, interfering with the transmission of infrared light and reducing the measurement sensitivity and accuracy. Secondly, the water vapor may enter the gas detection chamber, react with methane or other gases, or directly absorb infrared light, resulting in spectral signal distortion and affecting data reliability. In addition, long-term exposure to a high humidity environment may accelerate the corrosion or aging of optical components and electronic components, shortening the service life of the device. Content of the Utility Model

[0004] The purpose of the utility model is to provide a portable surface methane infrared gas analyzer for the field, aiming to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution:

[0006] A portable surface methane infrared gas analyzer for the field, comprising,

[0007] A processing mechanism, including a storage groove box and a moisture absorption component for drying treatment;

[0008] The moisture absorption component includes a limit shell sleeve, a connecting plate fixedly installed on the outer side of the limit shell sleeve, a number of longitudinally infinitely arrayed ventilation holes, and a drying sheet placed in the inner cavity of the limit shell sleeve for moisture absorption;

[0009] A protection mechanism for protecting the analyzer;

[0010] And a positioning mechanism for quickly installing the moisture absorption component.

[0011] As a preferred solution of the present utility model, the moisture absorption component further includes a cylindrical rod fixedly installed on the outer side of the connecting plate, and a limiting groove opened on the outer side of the limiting shell sleeve.

[0012] As a preferred solution of the present utility model, the processing mechanism further includes a sampling component arranged in the inner cavity of the storage tank box, a groove opened in the inner cavity of the storage tank box for placing the moisture absorption component, and a gas analysis component arranged in the inner cavity of the storage tank box for analyzing the surface methane.

[0013] As a preferred solution of the present utility model, the gas analysis component includes a casing placed in the inner cavity of the storage tank box, an optical component arranged in the inner cavity of the casing, a display screen fixedly installed on the outer side of the casing for displaying readings, an air inlet pipe and an exhaust pipe respectively fixedly installed in the inner cavity of the casing, a battery block fixedly installed in the inner cavity of the casing for power supply, an air pump fixedly installed in the inner cavity of the casing, and an air inlet and an air outlet respectively opened on the outer side of the casing. One end of the air inlet pipe is fixedly connected and communicated with the air inlet, and one end of the exhaust pipe is fixedly connected and communicated with the air outlet.

[0014] As a preferred solution of the present utility model, the optical component includes an air chamber pipe fixedly installed in the inner cavity of the casing, a / reflecting mirror fixedly installed at one end of the air chamber pipe, a main reflecting mirror fixedly installed at the other end of the air chamber pipe, a detector fixedly installed on one side of the air chamber pipe, and an optical element fixedly installed on the other side of the air chamber pipe.

[0015] As a preferred solution of the present utility model, the sampling component includes a filter handle placed in the inner cavity of the storage tank box, a sampling rod fixedly installed at the end of the filter handle, a rear cover movably installed on the outer side of the sampling rod, and an air pipe fixedly installed on the outer side of the rear cover.

[0016] As a preferred solution of the present utility model, the positioning mechanism includes a fixing plate fixedly installed in the inner cavity of the groove, a square pipe fixedly installed on the outer side of the fixing plate for inserting the cylindrical rod, a limiting strip fixedly installed on the inner wall of the square pipe, a pressing rod movably inserted into the inner cavity of the square pipe, a return spring movably sleeved on the outer side of the pressing rod, a connecting rod fixedly installed at the bottom of the pressing rod, a connecting shaft hinged at the end of the connecting rod, a swing rod fixedly installed on the outer side of the connecting shaft for automatically pushing towards the drying sheet side when receiving a downward pressure, and a limiting rod fixedly installed at the bottom of the square pipe for guiding the movement track of the swing rod.

[0017] As a preferred embodiment of the present utility model, the protection mechanism includes a housing, an adjustable leg hinged to the surface of the housing for supporting the housing, a housing cover hinged to the outside of the housing, a buckle fixedly installed on the top of the housing, and a handle fixedly installed on the top of the housing.

[0018] To solve the potential deficiencies in the stability, anti-interference ability, and portability of analytical instruments, the present utility model also proposes a methane infrared gas analysis system. The analysis system includes a power supply module, a gas path system electrically connected to the output end of the power supply module, an optical module electrically connected to the output end of the gas path system, a preamplifier electrically connected to the output end of the optical module, a signal processing unit electrically connected to the output end of the preamplifier by wire, a display control unit electrically connected to the output end of the signal processing unit, and the output end of the power supply module is electrically connected to the input ends of the display control unit, the signal processing unit, the preamplifier, and the optical module respectively.

[0019] Compared with the prior art, the beneficial effects of the present utility model are as follows: Through the collaborative design of the protection mechanism, the processing mechanism, and the positioning mechanism, the stability, anti-interference ability, and portability of the instrument in the wild and complex environment are significantly improved; the processing mechanism realizes high-resolution detection with a light path of 2400 mm and a resolution of 1 ppm through the multiple reflection gas chamber and gas filtering correlation technology, and the built-in air pump ensures a rapid response; the positioning mechanism realizes the rapid installation and stable fixation of the moisture absorption component and optimizes the internal drying process. The overall structure is compact, and the anti-seismic design adapts to the wild and complex environment, meeting the high-precision and high-efficiency requirements of seismic monitoring and field operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. Among them:

[0021] Figure 1 is the overall structural schematic diagram of the present utility model;

[0022] Figure 2 is the schematic diagram of the inside of the housing after the housing cover structure of the present utility model is unfolded;

[0023] Figure 3 is the partial cross-sectional view of the housing structure of the present utility model;

[0024] Figure 4 is the partial schematic diagram of the moisture absorption component and the positioning mechanism of the present utility model;

[0025] Figure 5 Structural schematic diagram of the moisture absorption component of the present utility model;

[0026] Figure 6 Schematic diagram of the other side of the structure of the moisture absorption component of the present utility model;

[0027] Figure 7 Partial cross-sectional view of the square tube structure of the present utility model;

[0028] Figure 8 Partial exploded view of the optical component structure of the present utility model;

[0029] Figure 9 System schematic diagram of the optical component structure of the present utility model.

[0030] In the figure: 100, protection mechanism; 110, outer shell; 120, adjusting leg; 130, shell cover; 140, buckle; 150, handle; 200, processing mechanism; 210, storage groove box; 220, moisture absorption component; 221, limit shell sleeve; 222, connecting plate; 223, ventilation hole; 224, drying sheet; 225, cylindrical rod; 226, limit groove; 230, sampling component; 231, filtering handle; 232, sampling rod; 233, rear cover; 234, connecting air pipe; 240, groove; 250, gas analysis component; 251, machine shell; 252, optical component; 2521, air chamber tube; 2522, 1 / 2 reflector; 2523, main reflector; 2524, detector; 2525, optical element; 253, display screen; 254, intake pipe; 255, exhaust pipe; 256, battery block; 257, air pump; 258, air inlet; 259, air outlet; 300, positioning mechanism; 310, fixing plate; 320, square tube; 330, limit strip; 340, pressing rod; 350, return spring; 360, connecting rod; 370, connecting shaft; 380, swing rod; 390, limit rod. Detailed implementation manners

[0031] In order to make the above objects, features and advantages of the present utility model more obvious and understandable, the following will describe the detailed implementation manners of the present utility model in conjunction with the accompanying drawings of the specification.

[0032] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Those skilled in the art can make similar promotions without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0033] Secondly, the so-called "one embodiment" or "embodiment" herein refers to specific features, structures or characteristics that may be included in at least one implementation manner of the present utility model. The appearances of "in one embodiment" in different places in this specification do not all refer to the same embodiment, nor are they separate or alternative embodiments that are mutually exclusive of other embodiments.

[0034] Embodiment 1

[0035] Referring to Figures 1-9 , which is the first embodiment of the present utility model. This embodiment provides a portable surface methane infrared gas analyzer for the field, including

[0036] A processing mechanism 200, including a storage groove box 210 and a moisture absorption component 220 for drying treatment;

[0037] The moisture absorption component 220 includes a limit shell sleeve 221, a connecting plate 222 fixedly installed on the outer side of the limit shell sleeve 221, a plurality of longitudinally infinitely arrayed ventilation holes 223, and a drying sheet 224 placed in the inner cavity of the limit shell sleeve 221 for moisture absorption;

[0038] A protection mechanism 100 for protecting the analyzer;

[0039] And a positioning mechanism 300 for quickly installing the moisture absorption component 220.

[0040] Among them, the protection mechanism 100 provides comprehensive protection for the optical component 252, ensuring its stability and durability in the complex field environment. The core of the moisture absorption component 220 is the drying sheet 224, which is made of a highly hygroscopic material and can quickly absorb the water vapor inside the housing 110, preventing moisture from damaging the optical components, electronic components and optical component 252. In the high-humidity field environment, water vapor is likely to condense on the optical window or mirror surface, interfering with the transmission of infrared light and reducing the measurement accuracy.

[0041] Specifically, the moisture absorption component 220 further includes a cylindrical rod 225 fixedly installed on the outer side of the connecting plate 222 and a limit groove 226 opened on the outer side of the limit shell sleeve 221.

[0042] Among them, the drying sheet 224 effectively avoids this problem through continuous moisture absorption, ensuring the stability of the optical system and the accuracy of the measurement data; the ventilation holes 223 not only provide a channel for the drying sheet 224 to contact the outside air, but also optimize the air circulation inside the housing 110. The design of the ventilation holes 223 enables moisture to quickly enter the moisture absorption range of the drying sheet 224, while avoiding local moisture accumulation caused by poor air flow, further improving the drying effect;

[0043] The design of the moisture absorption component 220 fully considers the needs of complex outdoor environments. Whether in high humidity, low temperature or high temperature environments, the drying sheet 224 can stably absorb moisture to ensure that the inside of the instrument is always in a dry state. The array distribution design of the air holes 223 also enables the moisture absorption component 220 to adapt to different airflow conditions, further enhancing its environmental adaptability.

[0044] The design of the desiccant component 220 fully considers the user's convenience of operation. The easily replaceable drying sheet 224 allows the user to quickly complete maintenance work. In addition, the stability and efficiency of the desiccant component 220 also reduce the user's measurement errors or equipment failures caused by humidity problems.

[0045] Furthermore, the processing mechanism 200 also includes a sampling component 230 disposed in the inner cavity of the storage tank box 210, a groove 240 opened in the inner cavity of the storage tank box 210 for placing the moisture absorption component 220, and a gas analysis component 250 disposed in the inner cavity of the storage tank box 210 for analyzing surface methane.

[0046] Among them, the design of the sampling component 230 simplifies the gas collection process and improves the convenience and efficiency of operation. The filter handle 231 has built-in filter material, which can effectively remove particulate matter and impurities in the gas, ensure that the gas entering the gas chamber is pure, and avoid interference with the measurement results.

[0047] Furthermore, the gas analysis component 250 includes a casing 251 placed in the inner cavity of the storage tank box 210, an optical component 252 arranged in the inner cavity of the casing 251, a display screen 253 fixedly installed on the outside of the casing 251 for displaying readings, an air inlet pipe 254 and an exhaust pipe 255 respectively fixedly installed in the inner cavity of the casing 251, a battery block 256 fixedly installed in the inner cavity of the casing 251 for power supply, an air pump 257 fixedly installed in the inner cavity of the casing 251, and an air inlet port 258 and an exhaust port 259 respectively opened on the outside of the casing 251, one end of the air inlet pipe 254 is fixedly connected to the air inlet port 258 and communicated with each other, and one end of the exhaust pipe 255 is fixedly connected to the exhaust port 259 and communicated with each other.

[0048] Among them, the gas analysis component 250 significantly improves the detection efficiency and portability of the instrument through integrated design. The housing 251 provides solid protection for the optical component 252 and electronic components to ensure stability in complex outdoor environments; the built-in air pump 257 realizes active gas sampling, and cooperates with the air inlet pipe 254 and the exhaust pipe 255 to form a closed-loop gas circuit to avoid external interference; the battery block 256 supports long-term continuous power supply, and the display screen 253 provides real-time data feedback, which is convenient for quick reading of results on site. The overall structure is compact, and the gas circuit and circuit are optimized in coordination, taking into account high-precision detection 1ppm resolution and convenient operation, meeting high-demand outdoor scenarios such as earthquake monitoring.

[0049] Further, the optical component 252 includes an air chamber tube 2521 fixedly installed in the inner cavity of the housing 251, a 1 / 2 reflector 2522 fixedly installed at one end of the air chamber tube 2521, a main reflector 2523 fixedly installed at the other end of the air chamber tube 2521, a detector 2524 fixedly installed on one side of the air chamber tube 2521, and an optical element 2525 fixedly installed on the other side of the air chamber tube 2521.

[0050] Among them, the 1 / 2 reflector 2522 and the air chamber tube 2521 achieve an optical path of 2400 mm through multiple reflection techniques, significantly improving the detection resolution for low-concentration methane of 1 ppm; the precise cooperation between the detector 2524 and the main reflector 2523 further optimizes the reception and processing of optical signals, reducing measurement errors, and the design of the optical element 2525 ensures the stability and efficiency of the optical path, enhancing the overall performance of the instrument.

[0051] Still further, the sampling component 230 includes a filter handle 231 placed in the inner cavity of the storage groove box 210, a sampling rod 232 fixedly installed at the end of the filter handle 231, a rear cover 233 movably installed outside the sampling rod 232, and a connecting air pipe 234 fixedly installed outside the rear cover 233.

[0052] Among them, the movable installation design of the sampling rod 232 and the rear cover 233 facilitates quick disassembly and cleaning by the user, extending the service life of the sampling component 230, and the connecting air pipe 234 ensures the smooth transmission of gas from the sampling point to the air chamber, reducing the possibility of gas leakage or contamination.

[0053] Still further, the protection mechanism 100 includes a housing 110, an adjustment leg 120 hinged on the surface of the housing 110 for supporting the housing 110, a housing cover 130 hinged outside the housing 110, a buckle 140 fixedly installed on the top of the housing 110, and a handle 150 fixedly installed on the top of the housing 110.

[0054] Among them, the housing 110 is made of a strong material, which can effectively resist external impacts, vibrations, and harsh weather conditions, extending the service life of the optical component 252; the adjustment leg 120 is installed on the surface of the housing 110 by a hinged manner, which not only facilitates adjusting the height and levelness of the overall device but also provides stable support on uneven ground to ensure the accuracy of measurement data. The housing cover 130 is connected to the housing 110 by a hinged manner, facilitating quick opening and closing, and convenient for the user to perform equipment maintenance or replace internal components; the designs of the buckle 140 and the handle 150 further enhance the overall portability and operability. The handle 150 is convenient for carrying, while the buckle 140 ensures that the housing cover 130 will not accidentally open during transportation or use, enhancing the safety of the device.

[0055] During use, the moisture inside the outer shell 110 enters the inner cavity of the moisture absorption component 220 through the ventilation holes 223, and then is quickly absorbed by the drying sheet 224 made of highly hygroscopic material, thereby reducing the internal humidity;

[0056] While the drying sheet 224 continuously absorbs moisture, the ventilation holes 223 optimize air circulation, ensuring uniform distribution of moisture and efficient treatment. Finally, through this cyclic process, the moisture absorption component 220 protects the internal optical and electronic components of the instrument from moisture erosion;

[0057] The adjusting legs 120 stably support the instrument to ensure a stable measurement environment; the user collects a gas sample through the sampling rod 232 of the sampling component 230. After the filter handle 231 removes impurities, the air pump 257 actively inhales the gas to be measured through the air inlet 258 and the intake pipe 254. After the gas enters the inner cavity of the gas chamber tube 2521, the optical component 252 uses infrared spectroscopy technology to analyze the methane concentration, and the detection data is transmitted to the display screen 253 in real time; the analyzed gas is discharged through the exhaust pipe 255 and the exhaust port 259 to form an efficient closed-loop system; the battery block 256 provides stable power for the entire process to ensure field operation for more than 12 consecutive hours; the gas is reflected multiple times in the gas chamber tube 2521 through the 1 / 2 mirror 2522 and the main mirror 2523, and the detector 2524 receives the optical signal and transmits it to the optical component 2525 for signal processing; the processed data is displayed in real time through the display screen 253. The user can carry the instrument through the handle 150 and ensure the stable closure of the shell cover 130 through the buckle 140 to complete the entire measurement process.

[0058] In summary, through the collaborative design of the protection mechanism 100, the processing mechanism 200, and the positioning mechanism 300, the stability, anti-interference ability, and portability of the instrument in the complex field environment are significantly improved. Through the optimization of efficient moisture absorption and optimized air circulation, the moisture absorption component 220 provides a reliable internal drying treatment function for the portable surface methane infrared gas analyzer; its design not only significantly improves the adaptability and measurement accuracy of the instrument in the complex field environment, but also extends the service life of the equipment, reduces the maintenance cost, and brings a more convenient and efficient operation experience to users;

[0059] The outer shell 110 of the protection mechanism 100 is made of a strong material, effectively resisting external impacts and bad weather, while the adjusting legs 120 and the shell cover 130 provide stable support and convenient maintenance; the optical component 252 in the gas analysis component 250 realizes an optical path of 2400 mm through multiple reflection technologies, ensuring high-precision detection of low-concentration methane at 1 ppm. The sampling component 230 simplifies the gas collection process, and the filter handle 231 and the connecting air pipe 234 ensure pure gas and smooth transmission.

[0060] Embodiment 2

[0061] Reference Figure 4 、 Figure 6 and Figure 7 This is the second embodiment of the present utility model. Different from the previous embodiment, this embodiment provides a positioning mechanism 300 for quickly installing the moisture absorption component 220.

[0062] Among them, the positioning mechanism 300 includes a fixing plate 310 fixedly installed in the inner cavity of the groove 240, a square tube 320 fixedly installed outside the fixing plate 310 for inserting the cylindrical rod 225, a limiting strip 330 fixedly installed on the inner wall of the square tube 320, a pressing rod 340 movably inserted into the inner cavity of the square tube 320, a return spring 350 movably sleeved outside the pressing rod 340, a connecting rod 360 fixedly installed at the bottom of the pressing rod 340, a connecting shaft 370 hinged at the end of the connecting rod 360, a swing rod 380 fixedly installed outside the connecting shaft 370 for automatically pushing towards the side of the drying sheet 224 when a downward pressure is applied, and a limiting rod 390 fixedly installed at the bottom of the square tube 320 for guiding the movement trajectory of the swing rod 380.

[0063] During use, the user inserts the cylindrical rod 225 of the moisture absorption component 220 into the inner cavity of the square tube 320, and then presses down the pressing rod 340. The pressing rod 340 drives the swing rod 380 to push towards the side of the drying sheet 224 through the connecting rod 360 and the connecting shaft 370. At the same time, the return spring 350 is compressed;

[0064] The swing rod 380 accurately pushes the drying sheet 224 in place under the guidance of the limiting rod 390 to ensure its stable installation. At the same time, the swing rod 380 can prevent one side of the drying sheet 224 from adhering to the inner wall of the square tube 320, ensuring the drying and ventilation area of the drying sheet 224.

[0065] In summary, the structures of the fixing plate 310 and the square tube 320 provide a stable insertion channel for the cylindrical rod 225, ensuring that the moisture absorption component 220 can be quickly aligned and fixed in place. The cooperative design of the limiting strip 330 and the limiting rod 390 further restricts the movement trajectory of the swing rod 380, preventing it from shifting during the installation process and ensuring that the drying sheet 224 can be accurately positioned;

[0066] The linkage design of the pressing rod 340 and the return spring 350 enables the user to simply press down the pressing rod 340 to automatically push the drying sheet 224 in place through the swing rod 380, which is simple and labor-saving in operation.

[0067] Embodiment 3

[0068] Reference Figure 9 This is the third embodiment of the present utility model. Different from the previous embodiment, this embodiment provides a methane infrared gas analysis system for solving potential deficiencies in the stability and anti-interference of analytical instruments.

[0069] Specifically, the analysis system includes a power supply module, a gas path system electrically connected to the output end of the power supply module, an optical module electrically connected to the output end of the gas path system, a preamplifier electrically connected to the output end of the optical module, a signal processing unit electrically connected to the output end of the preamplifier, a display control unit electrically connected to the output end of the signal processing unit, and the output end of the power supply module is electrically connected to the input ends of the display control unit, the signal processing unit, the preamplifier, and the optical module respectively.

[0070] In use, the working process of the methane infrared gas analysis system starts with the power supply module providing stable power to the gas path system, the optical module, the preamplifier, the signal processing unit, and the display control unit; the gas path system actively collects gas samples through the built-in air pump 257 and transmits them to the optical module; the optical module uses the principle of multiple reflection gas chambers and gas filtering correlation to perform infrared spectral analysis on the gas samples and generate optical signals; the preamplifier preliminarily amplifies and filters the optical signals and then transmits them to the signal processing unit for high-precision data processing and anti-interference optimization; finally, the processed data is displayed in real time through the display control unit, and the user can intuitively view the measurement results and make operation adjustments. At the same time, a Bluetooth printer and a GPS positioning device can be optionally configured to achieve data recording and position marking, completing the entire analysis process.

[0071] In summary, the methane infrared gas analysis system significantly improves the performance of the instrument in terms of stability, anti-interference, and portability by integrating a power supply module, a gas path system, an optical module, a preamplifier, a signal processing unit, and a display control unit;

[0072] The power supply module provides stable power to each component. In the case of being fully charged, it can work continuously for more than 12 hours and can be powered by a 12-volt car power supply to ensure that the instrument can work continuously in the wild for a long time; the gas path system has a built-in air pump 257 to achieve active measurement, with a fast response time and improved measurement efficiency;

[0073] The optical module adopts the principle of multiple reflection gas chambers and gas filtering correlation, with an optical path of 2400 mm, achieving a high resolution of 1 ppm and being not interfered by other background gases; the preamplifier and the signal processing unit work together to enhance the accuracy and anti-interference ability of signal processing;

[0074] The display control unit provides an intuitive operation interface and data feedback, facilitating real-time monitoring and adjustment by the user. The overall structure is compact, and the anti-seismic design adapts to the complex field environment. At the same time, a Bluetooth printer and a GPS positioning device can be optionally configured to further improve portability and data recording ability, meeting the high-precision and high-efficiency requirements of seismic monitoring and field operations.

[0075] Importantly, it should be noted that the construction and arrangement of the present application shown in multiple different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who refer to this disclosure should easily understand that many modifications are possible without substantially departing from the novel teachings and advantages of the subject matter described in this application (e.g., changes in the size, scale, structure, shape and proportion of various elements, as well as parameter values (such as temperature, pressure, etc.), installation arrangements, use of materials, colors, orientations, etc.). For example, elements shown as integrally formed may be composed of multiple parts or elements, the positions of the elements may be inverted or otherwise changed, and the nature, number or position of discrete elements may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the present utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "means plus function" clause is intended to cover the structures that perform the recited function herein, and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present utility model. Therefore, the present utility model is not limited to a particular embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0076] In addition, in order to provide a concise description of the exemplary embodiments, not all features of the actual embodiments may be described (i.e., those features that are not relevant to the currently contemplated best mode of carrying out the present utility model or those features that are not relevant to the implementation of the present utility model).

[0077] It should be understood that in the development of any actual implementation, as in any engineering or design project, a large number of specific implementation decisions may be made. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, without excessive experimentation, such development efforts will be a routine task of design, manufacturing and production.

[0078] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and not to limit them. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present utility model may be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present utility model, and they should all be covered within the scope of the claims of the present utility model.

Claims

1. A portable surface methane infrared gas analyzer for field use, characterized in that: include, The processing mechanism (200) comprises a storage tank box (210) and a moisture absorption component (220) for performing a drying process; The moisture absorption component (220) comprises a limiting shell (221), a connecting plate (222) fixedly mounted on the outside of the limiting shell (221), a plurality of air holes (223) distributed in an infinite array in the longitudinal direction, and a drying sheet (224) placed in the inner cavity of the limiting shell (221) for moisture absorption; A protection mechanism (100) for protecting the analyzer; And, a positioning mechanism (300) for quickly installing the moisture absorbing component (220).

2. A portable surface methane infrared gas analyzer for field use according to claim 1, characterized in that: The moisture absorption component (220) further comprises a cylindrical rod (225) fixedly mounted on the outside of the connecting plate (222), and a limiting groove (226) provided on the outside of the limiting shell (221).

3. A portable surface methane infrared gas analyzer for field use according to claim 2, characterized in that: The processing mechanism (200) further comprises a sampling component (230) arranged in the inner cavity of the storage tank box (210), a groove (240) provided in the inner cavity of the storage tank box (210) for placing a moisture absorption component (220), and a gas analysis component (250) arranged in the inner cavity of the storage tank box (210) for analyzing surface methane.

4. A portable surface methane infrared gas analyzer for field use according to claim 3, characterized in that: The gas analysis component (250) comprises a housing (251) placed in the inner cavity of the storage tank box (210), an optical component (252) arranged in the inner cavity of the housing (251), a display screen (253) fixedly mounted on the outer side of the housing (251) for displaying readings, an air intake pipe (254) and an air exhaust pipe (255) respectively fixedly mounted in the inner cavity of the housing (251), a battery block (256) fixedly mounted in the inner cavity of the housing (251) for power supply, an air pump (257) fixedly mounted in the inner cavity of the housing (251), and an air intake port (258) and an air exhaust port (259) respectively opened on the outer side of the housing (251), one end of the air intake pipe (254) is fixedly connected to the air intake port (258) and communicates with each other, and one end of the air exhaust pipe (255) is fixedly connected to the air exhaust port (259) and communicates with each other.

5. A portable surface methane infrared gas analyzer for field use according to claim 4, characterized in that: The optical component (252) comprises an air chamber tube (2521) fixedly mounted in the inner cavity of the housing (251), a 1 / 2 reflector (2522) fixedly mounted at one end of the air chamber tube (2521), a main reflector (2523) fixedly mounted at the other end of the air chamber tube (2521), a detector (2524) fixedly mounted on one side of the air chamber tube (2521), and an optical component (2525) fixedly mounted on the other side of the air chamber tube (2521).

6. A portable surface methane infrared gas analyzer for field use according to claim 5, characterized in that: The sampling assembly (230) comprises a filter handle (231) placed in the inner cavity of the storage tank box (210), a sampling rod (232) fixedly mounted on the end of the filter handle (231), a rear cover (233) movably mounted on the outside of the sampling rod (232), and a connecting air pipe (234) fixedly mounted on the outside of the rear cover (233).

7. A portable surface methane infrared gas analyzer for field use according to claim 6, characterized in that: The positioning mechanism (300) comprises a fixing plate (310) fixedly mounted on the inner cavity of the groove (240), a square tube (320) fixedly mounted on the outer side of the fixing plate (310) for inserting a cylindrical rod (225), a limiting strip (330) fixedly mounted on the inner wall of the square tube (320), a pressure rod (340) movably inserted into the inner cavity of the square tube (320), a return spring (350) movably sleeved on the outer side of the pressure rod (340), a connecting rod (360) fixedly mounted on the bottom of the pressure rod (340), a connecting shaft (370) hinged on the end of the connecting rod (360), a swinging rod (380) fixedly mounted on the outer side of the connecting shaft (370) for automatically pushing the drying sheet (224) toward one side when subjected to downward pressure, and a limiting rod (390) fixedly mounted on the bottom of the square tube (320) for guiding the movement trajectory of the swinging rod (380).

8. A portable surface methane infrared gas analyzer for field use according to claim 7, characterized in that: The protective mechanism (100) comprises a shell (110), an adjustment leg (120) hinged on the surface of the shell (110) for supporting the shell (110), a shell cover (130) hinged on the outside of the shell (110), a buckle (140) fixedly mounted on the top of the shell (110), and a handle (150) fixedly mounted on the top of the shell (110).

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