Deep ice while-drilling anti-vibration gas separation, enrichment and fusion detection device and method

Abstract

The invention discloses a deep ice while-drilling anti-vibration gas separation, enrichment and fusion detection device and method, and belongs to the technical field of polar region deep ice drilling. The deep ice while-drilling anti-vibration gas separation, enrichment and fusion detection device is mainly composed of a multi-gas enrichment end, a flow guide plate set, a sensor circuit board and an outer side vibration reduction structure. Wherein the separation and enrichment chamber can realize efficient enrichment and separation of target gas by simulating a turbinate structure of a mouse and a gas separation function. A flow guide structure designed by simulating the nasal cavity of a dog is utilized to guide gas to form vortex, so that the contact time of the gas and the sensor can be prolonged, and the detection sensitivity and accuracy are improved; the outer side vibration reduction structure simulates a sunflower marrow structure and a V-shaped structure of leech epidermis, the contact time can be prolonged, impact energy can be absorbed, the vibration reduction effect is achieved, and the stability and accuracy of a detection system are improved; according to the fusion detection method, multiple types of sensors are used for detecting the target gas, data fusion and dynamic error compensation are achieved, and the detection accuracy and the system stability are improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of polar deep ice drilling, and particularly relates to a deep ice drilling anti-vibration gas separation and enrichment fusion detection device and method. BACKGROUND

[0002] Polar deep ice drilling is of great significance for obtaining the historical records of Earth's climate and environmental change. Deep ice cores store climate information over millions of years, such as greenhouse gas concentrations, temperature changes, volcanic activity, and other key data. Analyzing these ice core samples can provide a deep understanding of the evolution of the Earth's climate system and provide important evidence for predicting future climate change. In polar deep ice drilling, accurate detection of gas components in ice core samples is crucial, as these gases are direct evidence of past atmospheric composition and climate and environmental change. Greenhouse gases such as methane and carbon dioxide, specific gases such as hydrogen sulfide and nitrogen dioxide, and oxygen gas concentration changes are closely related to Earth's climate change. Accurate measurement of their content and isotopic composition can reconstruct past climate records and reveal the mechanisms of climate system changes, providing valuable data for global climate change research.

[0003] In the field of polar deep ice drilling, gas detection equipment faces unique challenges. Most current equipment only detects a single gas, such as carbon dioxide or methane, making it difficult to meet the demand for simultaneous detection of multiple gases. Using multiple single-gas detection devices can lead to increased costs, complex operations, and hinder data collaborative analysis and comprehensive evaluation. Traditional gas detection methods, such as gas chromatography, can provide accurate gas component analysis, but due to the large size of the equipment and complex operation, they are not suitable for rapid, in-situ detection in polar field conditions, and sample pretreatment increases the risk of time and error. At the same time, the working conditions of deep ice drilling are very harsh, especially mechanical vibration and other interference factors, making it difficult for existing gas detection devices to operate stably, and their performance and accuracy are easily affected, and even may malfunction, resulting in data loss or inaccuracy. While portable gas detectors are convenient to carry, the gases trapped in ice bubbles are usually present in trace concentrations - their content can be as low as ppb or even ppt level. Portable gas detectors have deficiencies in precision and stability, making it difficult to meet the high precision requirements of polar deep ice drilling. Therefore, developing a gas detection device that can simultaneously detect multiple gases, is easy to operate, has high precision and can operate stably in extreme environments, has important practical significance for polar deep ice drilling research.

[0004] In terms of sensor technology, metal semiconductor oxide sensors have high sensitivity and can quickly detect small changes in gas concentration, but have poor selectivity and stability, are easily affected by temperature and humidity, and may decrease in performance over time; solid-state electrolyte sensors have high sensitivity and selectivity to target gases and respond quickly, but have a narrow linear range of detection and accuracy is compromised when gas concentration is too high or too low; optical sensors use non-contact measurement and are not affected by gas corrosiveness and toxicity, and have a long service life, but are easily disturbed by external environment, leading to data errors. These three types of sensors detect concentration by changing resistivity through chemical adsorption of gas-sensitive materials, generating current through oxidation and reduction of gas in electrolyte, or absorbing or scattering specific light spectrum of gas. Their differences in detection principles enable them to obtain gas concentration information from multiple dimensions when detecting the same gas. By mutual comparison and data fusion algorithm processing, the real concentration of the gas can be detected more accurately, and the detection reliability can be improved. In complex environments, a single sensor is easily disturbed by multiple factors, resulting in false positives, while the probability of false positives of three types of sensors simultaneously disturbed by the same interference is extremely low. Comprehensive analysis of data can effectively eliminate false signals and reduce the false positive rate. Moreover, the three types of sensors work independently and cooperatively, and when one sensor fails, ages or cannot work normally due to harsh environmental conditions, the other two types of sensors can still provide gas concentration data, ensuring uninterrupted operation of the monitoring system and improving system reliability. Multi-sensor fusion technology combines different types of sensors and uses data fusion algorithms to integrate and process data, achieving more accurate and comprehensive perception of target information. SUMMARY

[0005] The purpose of the present application is to provide a deep ice while drilling anti-vibration gas separation and enrichment fusion detection device and method with high precision, low cost and in-situ detection to solve the problems of complex operation, low detection precision, high cost and insufficient real-time performance in obtaining polar deep ice core gas information.

[0006] The deep ice while drilling anti-vibration gas separation and enrichment fusion detection device of the present application is composed of a gas-liquid separation cavity A, a multi-gas separation and enrichment end B, a guide plate group I C, a metal semiconductor sensor circuit board D, a solid-state electrolyte sensor circuit board E, a guide plate group II F, an optical sensor circuit board G, a middle section H, a gas outlet end I and a vibration reduction structure J. The gas-liquid separation cavity A is a hollow sphere, and the front and rear ends are respectively provided with a gas inlet 11a and a gas outlet 11b, and a gas-liquid separation membrane 2 is vertically and fixedly connected in the middle.

[0007] The multi-gas separation and enrichment end B is composed of an air inlet Ⅱ 3, a separation and enrichment section 4, a greenhouse gas enrichment front plate 5, a greenhouse gas enrichment rear plate 6, an inert gas enrichment front plate 7, an inert gas enrichment rear plate 8, a specific enrichment front plate 9, a specific enrichment rear plate 10, and a support 11. The air inlet Ⅱ 3 is fixed to the front end of the separation and enrichment section 4. The greenhouse gas enrichment plate Ⅰ 5, the greenhouse gas enrichment plate Ⅱ 6, the inert gas enrichment plate Ⅰ 7, the inert gas enrichment plate Ⅱ 8, the specific enrichment plate Ⅰ 9, and the specific enrichment plate Ⅱ 10 are all circular and arranged in order from front to back. The outer circle of the greenhouse gas enrichment front plate 5, the inert gas enrichment front plate 7, and the specific enrichment front plate 9 is fixed to the inner wall of the separation and enrichment section 4. The greenhouse gas enrichment rear plate 6, the inert gas enrichment rear plate 8, and the specific enrichment rear plate 10 are sequentially connected. The greenhouse gas enrichment front plate 5, the greenhouse gas enrichment rear plate 6, the inert gas enrichment front plate 7, the inert gas enrichment rear plate 8, the specific enrichment front plate 9, and the specific enrichment rear plate 10 are 3D printed from adsorbent, and the rear surface is provided with heating wires 12. The specific enrichment rear plate 10 has 8 flow guide openings 13 evenly distributed near the circumference, and the front end of the support 11 is fixed to the rear end center of the specific enrichment rear plate 10, and the rear part is provided with a boss pair Ⅰ 14 and a boss pair Ⅱ 15.

[0008] The guide plate group Ⅰ C is composed of a guide section Ⅰ 16 and 8 wave-shaped guide plates of a wave-shaped guide plate group 17. The 8 wave-shaped guide plates are evenly distributed and fixed to the inner circle of the guide section Ⅰ 16.

[0009] The metal semiconductor sensor circuit board D is composed of a substrate Ⅰ 18, a metal semiconductor sensor group 19, and a resistance group Ⅰ 20. The substrate Ⅰ 18 is circular ring-shaped, and the outer circle edge is evenly distributed with four grooves of a groove group Ⅰ 21. Eight sensors of the metal semiconductor sensor group 19 and eight resistors of the resistance group Ⅰ 20 are respectively evenly distributed and fixed to the front of the substrate Ⅰ 18.

[0010] The solid-state electrolyte sensor circuit board E is composed of a substrate Ⅱ 22, a solid-state electrolyte sensor group 23, and a resistance group Ⅱ 24. The substrate Ⅱ 22 is circular ring-shaped, and the inner circle edge is evenly distributed with four grooves of a groove group Ⅱ 25. Eight sensors of the solid-state electrolyte sensor group 23 and eight resistors of the resistance group Ⅱ 24 are respectively evenly distributed and fixed to the front of the substrate Ⅱ 22.

[0011] The guide plate group Ⅱ F is composed of a sleeve 26 and 8 rectangular guide plates of a rectangular guide plate group 27. The sleeve 26 has a key groove 28 in the inner circle, and the rectangular guide plate group 27 is evenly distributed and fixed to the outer circle of the sleeve 26.

[0012] The optical sensor circuit board G is composed of a substrate III 29, an optical sensor group 30 and a resistor group III 31. The substrate III 29 is annular, and the four grooves of the groove group III 32 are evenly distributed on its outer circle. The eight sensors of the optical sensor group 30 and the eight resistors of the resistor group III 31 are evenly spaced and fixed to the front of the substrate III 29.

[0013] The middle section H is a circular tube I 33 , and the front and rear parts of the inner ring of the circular tube I 33 are evenly distributed and fixedly connected with four bosses of the boss group 34 and the boss group 35 .

[0014] The air outlet end I is composed of a transition section 36 and an air outlet II 37 . The transition section 36 is a hollow hemispherical shape, and the air outlet II 37 is fixedly connected to the rear end of the transition section 36 .

[0015] The outer vibration damping structure J is composed of a hexagonal hole group 38, a circular tube II 39 and a V-shaped ring groove group 40. The hexagonal hole group 38 is composed of five circles of hexagonal holes. The five circles of hexagonal holes are arranged from the inside to the outside and from small to large on the cross section of the circular tube II 39 and penetrate the longitudinal section of the circular tube II 39. The six V-shaped ring grooves of the V-shaped ring groove group 40 are arranged on the longitudinal outer circle of the circular tube II 39, and the V-shaped angle is 45 degrees.

[0016] The gas-liquid separation chamber A, the multi-gas separation and enrichment end B, the guide plate group ⅠC, the metal semiconductor sensor circuit board D, the middle section H and the gas outlet end I are arranged in order from front to back; the gas outlet Ⅰ1b of the gas-liquid separation chamber A is fixedly connected to the gas inlet Ⅱ3 of the multi-gas separation and enrichment end B; the guide section Ⅰ16 of the guide plate group ⅠC is fixedly connected to the front end of the circular tube Ⅰ33 of the middle section H; the circular tube Ⅰ33 of the middle section H is fixedly connected to the transition section 36 of the gas outlet end I; the solid electrolyte sensor circuit board E is fixedly connected to the front of the guide plate group ⅡF, the inner ring of the sleeve 26 of the guide plate group ⅡF is connected to the key 11, and the sleeve 26 is limited in front by the boss pair Ⅰ14 of the pillar 11 in the multi-gas separation and enrichment end B; the outer ring of the substrate Ⅰ18 of the metal semiconductor sensor circuit board D and the outer ring of the substrate Ⅲ29 of the optical sensor circuit board G are respectively fixed to the boss group Ⅰ34 and the boss group Ⅱ35 of the middle section H; the circular tube Ⅱ39 of the outer vibration damping structure J is sleeved on the separation and enrichment section 4 of the multi-gas separation and enrichment end B, the guide section Ⅰ16 of the guide plate group ⅠC, the metal semiconductor sensor circuit board D, the circular tube Ⅰ33 of the middle section H and the outer ring of the transition section 36 of the gas outlet end I, and are interference connected.

[0017] The thickness d1 of the gas inlet Ⅱ3, the separation and enrichment section 4, the guide section Ⅰ16 of the guide plate group ⅠC, the circular tube Ⅰ33 in the middle section H, the transition section 36 and the gas outlet Ⅱ37 in the gas outlet end I is 1.5-2mm; the inner diameter D1 of the gas inlet Ⅱ3 and the gas outlet Ⅱ37 is 8-10mm, and the length L1 is 8-10mm; the outer diameter D2 of the separation and enrichment section 4, the guide section Ⅰ16, the circular tube Ⅰ33 and the transition section 36 is 80-85mm, and the length L2 of the separation and enrichment section 4 is 80-85mm; the length L3 of the support 11 is 100-110mm; the height L4 of the wave-shaped guide plate 17 and the rectangular guide plate 27 is 12-15mm, and the length L5 is 30-40mm; the outer diameter of the substrate Ⅰ18 in the metal semiconductor sensor circuit board D and the inner diameter D3 of the circular tube Ⅰ33 in the middle section H are 70-80mm, the inner diameter D4 is 45-50mm, and the thickness d2 is 2-2.3mm; the outer diameter of the support 11 in the multi-gas separation and enrichment end B, the inner diameter D5 of the substrate Ⅱ22 in the solid-state electrolyte sensor detection circuit board E and the sleeve 26 of the guide plate group ⅡF are all 18-20mm; the outer diameter D6 of the substrate Ⅱ22 in the solid-state electrolyte sensor detection circuit board D and the sleeve 26 of the guide plate group ⅡF is 50-55mm; the length L6 of the circular tube Ⅰ33 in the middle section H is 90-100mm, and the thickness d1 is 1.5-2mm; the length L7 of the transition section 36 in the gas outlet end I is 35-40mm; the length L8 of the outer side damping structure J is 140-150mm, the outer diameter D7 is 95-100mm, the side length of the six-hole hole arranged in five layers from inside to outside is 0.3-0.45mm, 0.45-0.60mm, 0.60-0.75mm, 0.9-1.05mm and 1.20-1.35mm, respectively, the interval between each layer is 0.25-0.5mm, and the interval between two six-hole holes in each layer is 0.5-1mm.

[0018] The deep ice while-drilling anti-vibration gas separation and enrichment fusion detection method of the application comprises the following steps:

[0019] 1. The while-drilling multi-gas sensor fusion detection device of claim 1 is set up;

[0020] 2. In the drilling process of the hot melt drill, the gas-liquid separation cavity A delivers gas to the multi-gas separation and enrichment end B for a multi-gas detection process, which includes multi-gas separation and enrichment, greenhouse gas desorption detection, inert gas desorption detection, specific gas desorption detection and sensor fusion detection, specifically:

[0021] 2.1 Multi-gas enrichment: After the gas enters the multi-gas enrichment end B, the greenhouse gas enrichment front plate 5, the greenhouse gas enrichment rear plate 6, the inert gas enrichment front plate 7, the inert gas enrichment rear plate 8, the specific enrichment front plate 9, and the specific enrichment rear plate 10 enrich the target gas. The background gas not absorbed by enrichment passes through the guide port 13, the wave-shaped guide plate 17, the metal semiconductor sensor circuit board D, the solid-state electrolyte sensor detection circuit board E, the rectangular guide plate 27, and the optical sensor detection circuit board G in turn for background gas detection, and then is discharged through the gas outlet II 37, obtaining a detection signal 1;

[0022] 2.2 Greenhouse gas desorption detection: The heating wire 12 on the greenhouse gas enrichment front plate 5 and the greenhouse gas enrichment rear plate 6 starts to work for heating desorption. After reaching the greenhouse gas desorption temperature, the greenhouse gas passes through the guide port 13, the wave-shaped guide plate 17, the metal semiconductor sensor circuit board D, the solid-state electrolyte sensor detection circuit board E, the rectangular guide plate 27, and the optical sensor detection circuit board G in turn for greenhouse gas detection, and then is discharged through the gas outlet II 37, obtaining a detection signal 2;

[0023] 2.3 Inert gas desorption detection: The heating wire 12 on the inert gas enrichment front plate 7 and the inert gas enrichment rear plate 8 starts to work for heating desorption. After reaching the inert gas desorption temperature, the inert gas passes through the guide port 13, the wave-shaped guide plate 17, the metal semiconductor sensor circuit board D, the solid-state electrolyte sensor detection circuit board E, the rectangular guide plate 27, and the optical sensor detection circuit board G in turn for inert gas detection, and then is discharged through the gas outlet II 37, obtaining a detection signal 3;

[0024] 2.4 Specific gas desorption detection: The heating wire 12 on the specific enrichment front plate 9 and the specific enrichment rear plate 10 starts to work for heating desorption. After reaching the specific gas desorption temperature, the specific gas passes through the guide port 13, the wave-shaped guide plate 17, the metal semiconductor sensor circuit board D, the solid-state electrolyte sensor detection circuit board E, the rectangular guide plate 27, and the optical sensor detection circuit board G in turn for specific gas detection, and then is discharged through the gas outlet II 37, obtaining a detection signal 4;

[0025] 2.5 Sensor fusion detection: After obtaining the detection signal 4, the gas inlet exhausts the residual gas in the device and reduces the enrichment plate temperature to the adsorption temperature, preparing for the next round of enrichment-detection. At the same time, the detection signal 1, the detection signal 2, the detection signal 3, and the detection signal 4 analyze the concentration and composition of the sampling gas, and output the analysis results;

[0026] 2.6 Complete the detection of the concentration and composition of the deep trace gas in situ while drilling.

[0027] The external vibration-damping structure of the present invention mimics the "pith" structure of a sunflower and the microgrooves of the leech's epidermis. The "pith" structure exhibits excellent vibration resistance and energy absorption capabilities. Its porous design, characterized by pore size and thickness gradients, achieves lightweighting while also providing lateral vibration reduction. By mimicking the V-shaped corrugations of the leech's epidermis, the V-shaped corrugations transform longitudinal compression into lateral extension when subjected to vertical impact forces, converting vertical motion during impact into lateral motion, thereby increasing contact time. The deformation of the V-shaped corrugations also absorbs significant impact energy. By connecting the flexible vibration-damping material to the hot-melt drill bit, most low- and high-frequency vibrations are filtered out, improving the stability and accuracy of the detection system.

[0028] The working principles of the greenhouse gas enrichment plate front plate 5, greenhouse gas enrichment plate rear plate 6, inert gas enrichment plate front plate 7, inert gas enrichment plate rear plate 8, specific enrichment plate front plate 9, and specific enrichment plate rear plate 10 of the present invention are as follows: the greenhouse gas enrichment plate front plate 5 and the greenhouse gas enrichment plate rear plate 6 are 3D printed from greenhouse gas adsorbent; the inert gas enrichment plate front plate 7 and the inert gas enrichment plate rear plate 8 are 3D printed from inert gas adsorbent; the specific enrichment plate front plate 9 and the specific enrichment plate rear plate 10 are 3D printed from specific gas adsorbent. During the enrichment and adsorption stage, the temperature of the adsorbent is controlled to be the optimal adsorption temperature of the target gas. After adsorption saturation, the enrichment plate is heated to the optimal desorption temperature of the target gas by the heating wire 12. After the enriched gas is desorbed, gas is introduced to dissipate heat, so that the enrichment plate is cooled back to the optimal adsorption temperature of the target gas, waiting for the next round of gas enrichment.

[0029] The multi-gas separation and enrichment terminal B of the present invention mimics the nasal drainage structure of mice, which have a keen sense of smell. The chamber is designed with a "small opening and large cavity" shape, and multiple enrichment plates are staggered. When the target gas enters the device, this structure effectively reduces the gas flow rate, increases the contact area and contact time with the enrichment plates, and improves enrichment efficiency. Simultaneously, by mimicking the separation function of the mammalian nasal cavity, it achieves specific acquisition and detection of the target gas.

[0030] In view of the fact that most gases in the ice layer are trace gases, the present invention utilizes a three-layer detection system designed based on the principle of bionics to improve detection efficiency and accuracy. The three-layer structure of the detection system: first, the separation and enrichment layer, second, the guide layer, and finally the multi-sensor fusion layer. The separation and enrichment layer increases the specific surface area by imitating the complex nasal concha structure of mammals with a keen sense of smell, optimizes the gas flow path, and allows more gas molecules to be adsorbed, thereby improving the enrichment and separation efficiency of the target gas. The guide layer designs the chamber structure by imitating the nasal structure to avoid local concentration or dispersion of the airflow, allowing the gas to fully contact the sensor surface, thereby improving detection sensitivity and accuracy. The multi-sensor fusion layer achieves accurate detection of trace gases through a multi-sensor array.

[0031] The beneficial effects of the present application are:

[0032] 1. The present application provides a deep ice while-drilling anti-vibration gas separation and enrichment fusion detection device and method, which can analyze the concentration and composition of gases in different depth ice layers in situ during ice core drilling. Compared with traditional laboratory detection, it avoids pollution in the sampling, transportation and analysis process, improves the accuracy and real-time performance of gas data, at the same time, simplifies the detection process, reduces the cost and provides data support for optimizing the drilling process.

[0033] 2. The present application provides a multi-gas separation and enrichment end built-in biomimetic separation and enrichment structure, which can classify and enrich trace multi-component gases in the ice core and release them, thereby generating targeted detection signals, thereby improving the performance, sensitivity and accuracy of the detection device.

[0034] 3. The present application provides a multi-gas separation and enrichment end that simulates the nasal turbinate flow guiding structure characteristics of a mouse nose, designs the chamber into an open shape and arranges multiple enrichment plates staggered, when the target gas enters the device, this structure can effectively reduce the gas flow rate, increase its contact area and contact time with the enrichment plate, thereby improving the enrichment efficiency.

[0035] 4. The present application provides a deep ice while-drilling anti-vibration gas separation and enrichment fusion detection device and method, which uses multi-sensor fusion technology by combining multiple different types of sensors together, and uses data fusion algorithm to process and integrate data from each sensor, thereby achieving more accurate and comprehensive perception of target information.

[0036] 5. The present application provides an outer side vibration reduction structure, which reduces the influence of vibration on the detection process caused by the violent friction between the drill bit and the ice layer and the operation of the drilling equipment during drilling by using flexible damping materials, thereby improving the sensor accuracy and enhancing the stability of the detection device in a vibrating environment. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 is an exploded view of the deep ice while-drilling anti-vibration gas separation and enrichment fusion detection device;

[0038] Figure 2 is a sectional view of the deep ice while-drilling anti-vibration gas separation and enrichment fusion detection device;

[0039] Figure 3 is a sectional view of the gas-liquid separation chamber A;

[0040] Figure 4 is a sectional view of the multi-gas separation and enrichment end B;

[0041] Figure 5 is a rear view of the multi-gas separation and enrichment end B;

[0042] Figure 6Front view of deflector set ⅠC;

[0043] Figure 7 Side view of wave-shaped deflector;

[0044] Figure 8 Front view of metal semiconductor sensor circuit board D;

[0045] Figure 9 Side view of metal semiconductor sensor circuit board D

[0046] Figure 10 Front view of solid electrolyte sensor circuit board E;

[0047] Figure 11 Side view of solid electrolyte sensor circuit board E;

[0048] Figure 12 Front view of deflector set ⅡF;

[0049] Figure 13 Front view of optical sensor circuit board G;

[0050] Figure 14 Side view of optical sensor circuit board G;

[0051] Figure 15 Side view of middle section H;

[0052] Figure 16 Front view of middle section H;

[0053] Figure 17 Sectional view of gas outlet end I;

[0054] Figure 18 Side view of outer side damping structure J;

[0055] Figure 19 Front view of outer side damping structure J;

[0056] Figure 20 Overall layout of deep ice while-drilling anti-vibration gas separation and enrichment fusion detection device;

[0057] Figure 21 Flow chart of deep ice while-drilling anti-vibration gas separation and enrichment fusion detection method;

[0058] Wherein: A. gas-liquid separation chamber B. multi-gas separation enrichment end C. guide plate group I D. metal semiconductor sensor circuit board E. solid-state electrolyte sensor circuit board F. guide plate group II G. optical sensor circuit board H. middle section I. gas outlet end J. damping structure 1a. gas inlet I 1b. gas outlet I 2. gas-liquid separation membrane 3. gas inlet II 4. separation enrichment section 5. greenhouse gas enrichment plate front plate 6. greenhouse gas enrichment plate rear plate 7. inert gas enrichment plate front plate 8. inert gas enrichment plate rear plate 9. specific enrichment plate front plate 10. specific enrichment plate rear plate 11. support 12. heating wire 13. guide opening 14. boss pair I 15. boss pair II 16. guide section I 17. wave-shaped guide plate group 18. base plate I 19. metal semiconductor sensor group 20. resistance group I 21. groove group I 22. base plate II 23. solid-state electrolyte sensor group 24. resistance group II 25. groove group II 26. sleeve 27. rectangular guide plate group 28. key groove 29. base plate III 30. optical sensor group 31. resistance group III 32. groove group III 33. circular tube I 34. boss group 35. boss group 36. transition section 37. gas outlet II 38. hexagonal hole group 39. circular tube II 40. V-shaped ring groove group. DETAILED DESCRIPTION

[0059] The application will be described below with reference to the drawings.

[0060] As shown in Figure 1 and Figure 2 , the deep ice while drilling anti-vibration gas separation enrichment fusion detection device of the application is composed of a gas-liquid separation chamber A, a multi-gas separation enrichment end B, a guide plate group I C, a metal semiconductor sensor circuit board D, a solid-state electrolyte sensor circuit board E, a guide plate group II F, an optical sensor circuit board G, a middle section H, a gas outlet end I, and a damping structure J.

[0061] As shown in Figure 3 , the gas-liquid separation chamber A is a hollow sphere, and a gas inlet I 1a and a gas outlet I 1b are respectively arranged at the front end and the rear end of the gas-liquid separation chamber A, and a gas-liquid separation membrane 2 is vertically and fixedly arranged in the middle of the gas-liquid separation chamber A.

[0062] As shown in Figure 4 and Figure 5As shown, the multi-gas separation and enrichment end B is composed of an air inlet Ⅱ 3, a separation and enrichment section 4, a methane enrichment plate front plate 5, a methane enrichment plate rear plate 6, a carbon dioxide enrichment plate front plate 7, a carbon dioxide enrichment plate rear plate 8, a nitrogen dioxide enrichment plate front plate 9, a nitrogen dioxide enrichment plate rear plate 10, and a support 11. The air inlet Ⅱ 3 is fixed to the front end of the separation and enrichment section 4. The methane enrichment plate front plate 5, the methane enrichment plate rear plate 6, the carbon dioxide enrichment plate front plate 7, the carbon dioxide enrichment plate rear plate 8, the nitrogen dioxide enrichment plate front plate 9, and the nitrogen dioxide enrichment plate rear plate 10 are all circular and arranged in order from front to back. The outer circles of the methane enrichment plate front plate 5, the carbon dioxide enrichment plate front plate 7, and the nitrogen dioxide enrichment plate front plate 9 are fixed to the inner wall of the separation and enrichment section 4. The methane enrichment plate rear plate 6, the carbon dioxide enrichment plate rear plate 8, and the nitrogen dioxide enrichment plate rear plate 10 are sequentially connected. The methane enrichment plate front plate 5, the methane enrichment plate rear plate 6, the carbon dioxide enrichment plate front plate 7, the carbon dioxide enrichment plate rear plate 8, the nitrogen dioxide enrichment plate front plate 9, and the nitrogen dioxide enrichment plate rear plate 10 are 3D printed from the adsorbent 3D, and the rear surface is provided with heating wires 12. Eight flow guide openings 13 are uniformly distributed on the near-circumference of the specific enrichment rear plate 10. The front end of the support 11 is fixed to the rear end center of the specific enrichment rear plate 10, and the rear part is provided with a boss pair Ⅰ 14 and a boss pair Ⅱ 15.

[0063] As shown in Figure 6 and Figure 7 The guide plate group Ⅰ C is composed of a guide section Ⅰ 16 and 8 wave-shaped guide plates of a wave-shaped guide plate group 17. The 8 wave-shaped guide plates are uniformly distributed and fixed to the inner circle of the guide section Ⅰ 16.

[0064] As shown in Figure 8 and Figure 9 The metal semiconductor sensor circuit board D is composed of a substrate Ⅰ 18, a metal semiconductor sensor group 19, and a resistance group Ⅰ 20. The substrate Ⅰ 18 is circular ring-shaped, and the outer circle edge is uniformly distributed with four grooves of a groove group Ⅰ 21. Eight sensors of the metal semiconductor sensor group 19 and eight resistors of the resistance group Ⅰ 20 are respectively uniformly distributed and fixed to the front of the substrate Ⅰ 18.

[0065] As shown in Figure 10 and Figure 11 The solid-state electrolyte sensor circuit board E is composed of a substrate Ⅱ 22, a solid-state electrolyte sensor group 23, and a resistance group Ⅱ 24. The substrate Ⅱ 22 is circular ring-shaped, and the inner circle edge is uniformly distributed with four grooves of a groove group Ⅱ 25. Eight sensors of the solid-state electrolyte sensor group 23 and eight resistors of the resistance group Ⅱ 24 are respectively uniformly distributed and fixed to the front of the substrate Ⅱ 22.

[0066] As shown in Figure 12As shown in the figure, the guide plate group II F is composed of sleeve 26 and 8 rectangular guide plates of rectangular guide plate group 27. The inner circle of sleeve 26 is provided with keyway 28, and rectangular guide plate group 27 is evenly distributed and fixed to the outer circle of sleeve 26.

[0067] As shown in the figure, Figure 13 and Figure 14 As shown in the figure, the optical sensor circuit board G is composed of base plate III 29, optical sensor group 30 and resistance group III 31. The outer circle of base plate III 29 is evenly distributed with four grooves of groove group III 32. Eight sensors of optical sensor group 30 and eight resistors of resistance group III 31 are evenly distributed and fixed to the front of base plate III 29.

[0068] As shown in the figure, Figure 15 and Figure 16 As shown in the figure, the middle section H is circular tube I 33. The front and back of the inner circle of circular tube I 33 are evenly distributed and fixed with four bosses of boss group 34 and boss group 35 respectively.

[0069] As shown in the figure, Figure 17 As shown in the figure,

[0070] As shown in the figure, Figure 18 and Figure 19 As shown in the figure, the outer side damping structure J is composed of hexagonal hole group 38, circular tube II 39 and V-shaped ring groove group 40. Hexagonal hole group 38 is composed of 5 circles of hexagonal holes. The 5 circles of hexagonal holes are arranged from inside to outside and from small to large on the cross section of circular tube II 39, and penetrate the longitudinal section of circular tube II 39. Six V-shaped ring grooves of V-shaped ring groove group 40 are arranged on the outer circle of circular tube II 39 in the longitudinal direction, and the angle of V-shaped is 45 degrees.

[0071] As shown in the figure, Figure 1 and 2As shown, the gas-liquid separation chamber A, the multi-gas separation enrichment end B, the flow guide plate group I C, the middle section H and the gas outlet end I are arranged in sequence from front to back; the gas outlet 11b of the gas-liquid separation chamber A is fixedly connected with the gas inlet 13 of the multi-gas separation enrichment end B; the flow guide section 116 of the flow guide plate group I C is fixedly connected with the front end of the circular tube 133 of the middle section H; the circular tube 133 of the middle section H is fixedly connected with the transition section 36 of the gas outlet end I; the solid electrolyte sensor circuit board E is fixedly connected in front of the flow guide plate group II F; the inner circle of the sleeve 26 of the flow guide plate group II F is connected with the 11 key, and the front of the sleeve 26 is limited by the boss of the support 11 in the multi-gas separation enrichment end B; the outer circle of the substrate 118 of the metal semiconductor sensor circuit board D and the outer circle of the substrate 129 of the optical sensor circuit board G are respectively fixed at the boss group 134 and the boss group 135 of the middle section H; the circular tube 139 of the outer side damping structure J is sleeved on the outer circle of the separation and enrichment section 4 of the multi-gas separation enrichment end B, the flow guide section 116 of the flow guide plate group I C, the circular tube 133 of the middle section H and the transition section 36 of the gas outlet end I, and is connected in an interference fit.

[0072] As shown in Figures 4 to 7 and Figures 15 to 17 , the thickness d1 of the gas inlet 13, the separation and enrichment section 4 in the multi-gas separation enrichment end B, the flow guide section 116 in the flow guide plate group I C, the circular tube 133 in the middle section H, the transition section 36 and the gas outlet 137 in the gas outlet end I are all 1.5-2mm; the inner diameter D1 of the gas inlet 13 and the gas outlet 137 is 8-10mm, and the length L1 is 8-10mm; the outer diameter D2 of the separation and enrichment section 4, the flow guide section 116, the circular tube 133 and the transition section 36 is 80-85mm, and the length L2 of the separation and enrichment section 4 is 80-85mm; the length L3 of the support 11 is 100-110mm; the height L4 of the wave-shaped flow guide plate 17 and the rectangular flow guide plate 27 is 12-15mm, and the length L5 is 30-40mm;

[0073] As shown in Figure 8 , Figure 9 , Figure 13 and Figure 14 , the outer diameter of the substrate 118 in the metal semiconductor sensor circuit board D and the inner diameter D3 of the circular tube 133 in the middle section H are both 70-80mm, the inner diameter D4 is 45-50mm, and the thickness d2 is 2-2.3mm;

[0074] As shown in Figure 2 , Figures 10 to 12As shown in the drawings, the outer diameter of the support 11 in the multi-gas separation and enrichment end B and the inner diameter D5 of the sleeve 26 of the base plate II 22 and the flow guide group II F in the solid electrolyte sensor detection circuit board E are both 18-20 mm; the outer diameter D6 of the sleeve 26 of the base plate II 22 and the flow guide group II F in the solid electrolyte sensor detection circuit board D is 50-55 mm;

[0075] As shown in the drawings, Figure 15 and Figure 16 As shown in the drawings, the length L6 of the circular tube I 33 in the middle section H is 90-100 mm, and the thickness d1 is 1.5-2 mm; the length L7 of the transition section 36 in the gas outlet end I is 35-40 mm;

[0076] As shown in the drawings, Figure 17 and Figure 18 As shown in the drawings, the length L8 of the outer side damping structure J is 140-150 mm, and the outer diameter D7 is 95-100 mm; the side length of the six hexagonal holes arranged circumferentially from the inside to the outside is 0.3-0.45 mm, 0.45-0.60 mm, 0.60-0.75 mm, 0.9-1.05 mm and 1.20-1.35 mm, respectively, and the interval between each layer is 0.25-0.5 mm, and the interval between two hexagonal holes in each layer is 0.5-1 mm.

[0077] As shown in the drawings, Figure 20 As shown in the drawings, the deep ice while drilling anti-vibration gas separation and enrichment fusion detection device is characterized in that it is arranged in a hot melt drill body, the circular tube II 39 in the outer side damping structure J is connected with the inner surface of the hot melt drill, the gas inlet 1a in the gas-liquid separation cavity A is connected with a liquid sampling device, and the gas outlet II 37 in the gas outlet end I is connected with a gas discharge pipeline.

[0078] As shown in the drawings, Figure 21 As shown in the drawings, the deep ice while drilling anti-vibration gas separation and enrichment fusion detection method of the present application comprises the following steps:

[0079] 1. The while drilling multi-gas sensor fusion detection device of claim 1 is set;

[0080] 2. In the drilling process of the hot melt drill, the gas-liquid separation cavity A delivers gas to the multi-gas separation and enrichment end B for a multi-gas detection process, and the detection process includes multi-gas separation and enrichment, methane gas desorption detection, carbon dioxide gas desorption detection, nitrogen dioxide gas desorption detection and sensor fusion detection, specifically:

[0081] 2.1 Multi-gas enrichment: After the gas enters the multi-gas enrichment end B, the target gas is enriched on the methane enrichment front plate 5, the methane enrichment rear plate 6, the carbon dioxide enrichment front plate 7, the carbon dioxide enrichment rear plate 8, the nitrogen dioxide enrichment front plate 9, and the nitrogen dioxide enrichment rear plate 10. The background gas that is not absorbed and enriched passes through the flow guide 13, the wavy flow guide plate 17, the metal semiconductor sensor circuit board D, the solid electrolyte sensor detection circuit board E, the rectangular flow guide plate 27, and the optical sensor detection circuit board G in turn for background gas detection, and then is discharged through the gas outlet 37 to obtain a detection signal 1;

[0082] 2.2 Methane gas desorption detection: The heating wires 12 on the methane enrichment front plate 5 and the methane enrichment rear plate 6 start to work for heating desorption. After the methane gas desorption temperature is reached, the methane gas passes through the flow guide 13, the wavy flow guide plate 17, the metal semiconductor sensor circuit board D, the solid electrolyte sensor detection circuit board E, the rectangular flow guide plate 27, and the optical sensor detection circuit board G in turn for greenhouse gas detection, and then is discharged through the gas outlet 37 to obtain a detection signal 2;

[0083] 2.3 Carbon dioxide gas desorption detection: The heating wires 12 on the carbon dioxide enrichment front plate 7 and the carbon dioxide enrichment rear plate 8 start to work for heating desorption. After the carbon dioxide gas desorption temperature is reached, the carbon dioxide gas passes through the flow guide 13, the wavy flow guide plate 17, the metal semiconductor sensor circuit board D, the solid electrolyte sensor detection circuit board E, the rectangular flow guide plate 27, and the optical sensor detection circuit board G in turn for inert gas detection, and then is discharged through the gas outlet 37 to obtain a detection signal 3;

[0084] 2.4 Nitrogen dioxide gas desorption detection: The heating wires 12 on the nitrogen dioxide enrichment front plate 9 and the nitrogen dioxide enrichment rear plate 10 start to work for heating desorption. After the nitrogen dioxide gas desorption temperature is reached, the nitrogen dioxide gas passes through the flow guide 13, the wavy flow guide plate 17, the metal semiconductor sensor circuit board D, the solid electrolyte sensor detection circuit board E, the rectangular flow guide plate 27, and the optical sensor detection circuit board G in turn for specific gas detection, and then is discharged through the gas outlet 37 to obtain a detection signal 4;

[0085] 2.5 Sensor fusion detection: After obtaining the detection signal 4, the gas inlet discharges the residual gas in the device, and the enrichment plate temperature is lowered to the adsorption temperature, preparing for the next round of enrichment-detection. At the same time, the detection signal 1, the detection signal 2, the detection signal 3, and the detection signal 4 are fused to analyze the concentration and composition of the sampling gas, and the analysis result is output;

[0086] 2.6 The detection of the concentration and composition of deep trace gas is completed in situ while drilling.

Claims

1. A deep ice drilling vibration-resistant gas separation, enrichment, fusion and detection device, characterized by: The invention is composed of a gas-liquid separation chamber (A), a multi-gas separation and enrichment end (B), a guide plate group I (C), a metal semiconductor sensor circuit board (D), a solid electrolyte sensor circuit board (E), a guide plate group II (F), an optical sensor circuit board (G), a middle section (H), an air outlet end (I) and a vibration reduction structure (J). The gas-liquid separation chamber (A) is a hollow sphere, and an air inlet I (1a) and an air outlet I (1b) are respectively provided at its front and rear ends, and a gas-liquid separation membrane (2) is vertically fixed in the middle; the multi-gas separation and enrichment end (B) is composed of an air inlet II (3), a separation and enrichment section (4), a greenhouse gas enrichment front plate (5), a greenhouse gas enrichment rear plate (6), an inert gas enrichment front plate (7), an inert gas enrichment rear plate (8), a specific The gas inlet II (3) is fixedly connected to the front end of the separation and enrichment section (4); the greenhouse gas enrichment plate I (5), the greenhouse gas enrichment plate II (6), the inert gas enrichment plate I (7), the inert gas enrichment plate II (8), the specific enrichment plate I (9) and the specific enrichment plate II (10) are all circular and arranged in sequence from front to back, wherein the outer circles of the greenhouse gas enrichment front plate (5), the inert gas enrichment front plate (7) and the specific enrichment front plate (9) are fixedly connected to the inner wall of the separation and enrichment section (4); the greenhouse gas enrichment rear plate (6), the inert gas enrichment rear plate (8) and the specific enrichment rear plate (10) are connected in sequence, and the greenhouse gas enrichment front plate (5), the greenhouse gas enrichment rear plate (7) and the specific enrichment rear plate (9) are fixedly connected to the inner wall of the separation and enrichment section (4); The plate (6), the inert gas enrichment front plate (7), the inert gas enrichment rear plate (8), the specific enrichment front plate (9) and the specific enrichment rear plate (10) are made of adsorbent 3D printing, and the rear surface is provided with a heating wire (12); 8 guide ports (13) are evenly distributed on the near circumference of the specific enrichment rear plate (10), the front end of the pillar (11) is fixed to the rear end center of the specific enrichment rear plate (10), and the rear part thereof is provided with a boss pair I (14) and a boss pair II (15); the guide plate group I (C) is composed of a guide section I (16) and 8 wavy guide plates of the wavy guide plate group (17), and the 8 wavy guide plates are evenly distributed and fixed on the inner circle of the guide section I (16); the metal semiconductor sensor circuit board (D) is composed of a substrate I (18 ), a metal semiconductor sensor group (19) and a resistor group I (20), the substrate I (18) is annular, and the outer edge of the substrate I is evenly distributed with four grooves of the groove group I (21), and the eight sensors of the metal semiconductor sensor group (19) and the eight resistors of the resistor group I (20) are evenly distributed and fixed on the front of the substrate I (18); the solid electrolyte sensor circuit board (E) is composed of a substrate II (22), a solid electrolyte sensor group (23) and a resistor group II (24), the substrate II (22) is annular, and the inner edge of the substrate II is evenly distributed with four grooves of the groove group II (25), and the eight sensors of the solid electrolyte sensor group (23) and the eight resistors of the resistor group II (24) are evenly distributed and fixed on the front of the substrate II (22);The guide plate group II (F) is composed of a sleeve (26) and eight rectangular guide plates of a rectangular guide plate group (27). The inner ring of the sleeve (26) is provided with a keyway (28). The rectangular guide plate group (27) is evenly distributed and fixed to the outer ring of the sleeve (26). The optical sensor circuit board (G) is composed of a substrate III (29), an optical sensor group (30) and a resistor group III (31). The substrate III (29) is annular, and its outer ring is evenly distributed with four grooves of the groove group III (32). The eight sensors of the optical sensor group (30) and the eight resistors of the resistor group III (31) are evenly distributed and fixed to the front of the substrate III (29). The middle section (H) is a circular tube I (33). The front and rear parts of the inner ring of the circular tube I (33) are evenly distributed and fixed with four bosses of the boss group (34) and the boss group (35); the air outlet (I) is composed of a transition section (36) and an air outlet II (37), the transition section (36) is a hollow hemispherical shape, and the air outlet II (37) is fixed to the rear end of the transition section (36); the outer vibration damping structure (J) is composed of a hexagonal hole group (38), a circular tube II (39) and a V-shaped ring groove group (40), the hexagonal hole group (38) is composed of 5 circles of hexagonal holes, and the 5 circles of hexagonal holes are arranged from the inside to the outside and from small to large on the cross section of the circular tube II (39) and pass through the longitudinal section of the circular tube II (39), and the 6 V-shaped ring groove group (40) are arranged on the cross section of the circular tube II (39) from the inside to the outside and from small to large. The V-shaped annular groove is arranged in the longitudinal outer circle of the circular tube II (39), and the V-shaped angle is 45 degrees; the gas-liquid separation chamber (A), the multi-gas separation enrichment end (B), the guide plate group I (C), the middle section (H) and the gas outlet end (I) are arranged in sequence from front to back; the gas outlet I (1b) of the gas-liquid separation chamber (A) is fixedly connected to the gas inlet II (3) of the multi-gas separation enrichment end (B); the guide section I (16) of the guide plate group I (C) is fixedly connected to the front end of the circular tube I (33) of the middle section (H); the circular tube I (33) of the middle section (H) is fixedly connected to the transition section (36) of the gas outlet end (I); the solid electrolyte sensor circuit board (E) is fixedly connected to the front of the guide plate group II (F); the sleeve (2 6) The inner ring is key-connected with (11), and the front of the sleeve (26) is limited by the boss pair I (14) of the support (11) in the multi-gas separation and enrichment end (B); the outer ring of the substrate I (18) of the metal semiconductor sensor circuit board (D) and the outer ring of the substrate III (29) of the optical sensor circuit board (G) are respectively fixed to the boss group I (34) and the boss group II (35) of the middle section (H); the circular tube II (39) of the outer vibration damping structure (J) is sleeved on the outer rings of the separation and enrichment section (4) of the multi-gas separation and enrichment end (B), the guide section I (16) of the guide plate group I (C), the circular tube I (33) of the middle section (H) and the transition section (36) of the gas outlet end (I), and are interference-connected.

2. The deep ice drilling vibration-resistant gas separation, enrichment, fusion and detection device according to claim 1 is characterized in that: The thickness d1 of the air inlet II (3) and the separation and enrichment section (4) in the multi-gas separation and enrichment end (B), the guide section I (16) in the guide plate group I (C), the circular tube I (33) in the middle section (H), the transition section (36) and the air outlet II (37) in the air outlet end (I) are all 1.5-2 mm; the inner diameter D1 of the air inlet II (3) and the air outlet II (37) are both 8-10 mm, and the length L1 is both 8-10 mm; the outer diameter D2 of the separation and enrichment section (4), the guide section I (16), the circular tube I (33) and the transition section (36) are all 80-85 mm. m, the length L2 of the separation and enrichment section (4) is 80-85 mm; the length L3 of the pillar (11) is 100-110 mm; the height L4 of the wavy guide plate (17) and the rectangular guide plate (27) are both 12-15 mm, and the length L5 are both 30-40 mm; the outer diameter of the substrate I (18) in the metal semiconductor sensor circuit board (D) and the optical sensor detection circuit board (G) composed of the substrate III (29) and the inner diameter D3 of the circular tube I (33) in the middle section (H) are both 70-80 mm, and the inner diameter D4 is both 45-50 mm m, and the thickness d2 is 2-2.3 mm; the outer diameter of the pillar (11) in the multi-gas separation enrichment end (B), the inner diameter D5 of the base plate II (22) in the solid electrolyte sensor detection circuit board (E) and the sleeve (26) of the guide plate group II (F) are all 18-20 mm; the outer diameter D6 of the base plate II (22) in the solid electrolyte sensor detection circuit board (D) and the sleeve (26) of the guide plate group II (F) are all 50-55 mm; the length L6 of the circular tube I (33) in the middle section (H) is 90-100 mm, and the thickness d1 is 1.5- 2mm; the length L7 of the transition section (36) in the air outlet end (I) is 35-40mm; the length L8 of the outer vibration damping structure (J) is 140-150mm, the outer diameter D7 is 95-100mm, and the side lengths of the five layers of hexagonal holes uniformly distributed from the inside to the outside are 0.3-0.45mm, 0.45-0.60mm, 0.60-0.75mm, 0.9-1.05mm and 1.20-1.35mm respectively, the interval between each layer is 0.25-0.5mm, and the interval between two hexagonal holes in each layer is 0.5-1mm.

3. A detection method based on the deep ice drilling vibration-resistant gas separation, enrichment and fusion detection device according to claim 1, characterized in that The following steps are involved: 1) The multi-gas sensor fusion detection device while drilling according to claim 1 is provided; 2) During the flow drill's drilling process, the gas-liquid separation chamber (A) transports the gas to the multi-gas separation and enrichment end (B) for a multi-gas detection process. The detection process includes: multi-gas separation and enrichment, greenhouse gas desorption detection, inert gas desorption detection, specific gas desorption detection, and sensor fusion detection. Specifically: 2.1 Multi-gas enrichment: After the gas enters the multi-gas enrichment end (B), the greenhouse gas enrichment front plate (5), the greenhouse gas enrichment rear plate (6), the inert gas enrichment front plate (7), the inert gas enrichment rear plate (8), the specific enrichment front plate (9), and the specific enrichment rear plate (10) enrich the target gas, and the background gas that is not enriched and absorbed passes through the guide port (13), the wavy guide plate group (17), the metal semiconductor sensor circuit board (D), the solid electrolyte sensor detection circuit board (E), the rectangular guide plate group (27), and the optical sensor detection circuit board (G) in sequence for background gas detection, and is then discharged through the gas outlet II (37) to obtain a detection signal 1; 2.2 Greenhouse gas desorption detection: The heating wires (12) on the greenhouse gas enrichment front plate (5) and the greenhouse gas enrichment rear plate (6) start to work for heating and desorption. After reaching the greenhouse gas desorption temperature, the greenhouse gas passes through the guide port (13), the wavy guide plate group (17), the metal semiconductor sensor circuit board (D), the solid electrolyte sensor detection circuit board (E), the rectangular guide plate group (27), and the optical sensor detection circuit board (G) in sequence for greenhouse gas detection, and is then discharged through the gas outlet II (37) to obtain a detection signal 2; 2.3 Inert gas desorption detection: The heating wires (12) on the inert gas enrichment front plate (7) and the inert gas enrichment rear plate (8) start to work for heating and desorption. After reaching the inert gas desorption temperature, the inert gas passes through the guide port (13), the wavy guide plate group (17), the metal semiconductor sensor circuit board (D), the solid electrolyte sensor detection circuit board (E), the rectangular guide plate group (27), and the optical sensor detection circuit board (G) in sequence for inert gas detection, and then is discharged through the gas outlet II (37) to obtain a detection signal 3; 2.4 Specific gas desorption detection: The heating wires (12) on the specific enrichment front plate (9) and the specific enrichment rear plate (10) start to work for heating and desorption. After reaching the specific gas desorption temperature, the specific gas passes through the guide port (13), the wavy guide plate group (17), the metal semiconductor sensor circuit board (D), the solid electrolyte sensor detection circuit board (E), the rectangular guide plate group (27), and the optical sensor detection circuit board (G) in sequence for specific gas detection, and is then discharged through the gas outlet II (37) to obtain a detection signal 4; 2.5 Sensor fusion detection: After obtaining detection signal 4, the air inlet is ventilated to discharge the residual gas in the device, and the temperature of the enrichment plate is lowered to the adsorption temperature to prepare for the next round of enrichment-detection; at the same time, the concentration and composition of the sampled gas are analyzed by fusing detection signals 1, 2, 3 and 4, and the analysis results are output; 2.6 Complete in-situ detection of deep trace gas concentration and composition while drilling.

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