An automatic sampling system and method suitable for ultra-high pressure environment calibration

Abstract

The application relates to a full-automatic sampling system suitable for calibration in an ultrahigh-pressure environment, which comprises a normal-pressure online gas detection system and a high-pressure in-situ online detection system. The normal-pressure online gas detection system samples and detects the environmental gas in the pressurized cabin under a normal-pressure environment and generates a normal-pressure detection signal. The high-pressure in-situ online detection system samples and detects the environmental gas in the pressurized cabin under a high-pressure environment and generates a high-pressure detection signal. The normal-pressure online gas detection system can realize real-time monitoring and rapid response of the to-be-detected gas and has the characteristics of high-sensitivity detection, thereby guaranteeing real-time monitoring of each component of the cabin gas. The high-pressure in-situ online detection system can construct a carbon dioxide concentration distribution gradient in the cabin according to the generation and deposition characteristics of carbon dioxide in the high-pressure cabin, the targeted sampling points and the detection data of the sensor.

Description

Technical Field

[0001] The present application relates to the technical field of high-pressure chamber gas detection, and in particular to a fully automatic sampling system and a sample delivery method suitable for ultra-high pressure environment calibration. Background Art

[0002] Deep saturation diving involves prolonged underwater exposure to depths exceeding 120 meters (or even 300-500 meters). This type of operation requires divers to first spend an extended period in a hyperbaric chamber to acclimate to the high-pressure environment at great depths before returning to work at depths. This can last up to a month. According to diving medicine, the atmosphere within these chambers typically consists of a mixture of helium, oxygen, a small amount of carbon dioxide, water, and nitrogen, and the pressure can exceed 120 atmospheres depending on the situation. While acclimatizing and resting in the chamber, divers need to ingest oxygen and exhale carbon dioxide to maintain their health. Under high pressure, the human body is extremely sensitive to the partial pressure of carbon dioxide, which typically cannot exceed 0.5 kPa. Exceeding this threshold can threaten the life and health of those inside. Therefore, carbon dioxide levels must be monitored and discharged in real time to protect the physical and mental well-being of those inside.

[0003] Conventional high-pressure environmental chambers typically incorporate an environmental control unit that removes harmful gases by absorbing them with an absorbent. Pre-spraying the gas with water improves absorption efficiency. The purified gas passes through a fan tank, where it is pressurized and then enters a condenser tank. Inside the condenser tank, the gas undergoes heat exchange with refrigerant water, cooling and dehumidifying it. The dehumidified gas then enters a heating tank, where it undergoes heat exchange with the heating water, raising its temperature before being delivered into the chamber.

[0004] The existing process of controlling the ambient gas in a high-pressure environmental chamber has the following defects: on the one hand, it is not convenient to quickly detect and display the low-concentration components in the ambient gas; on the other hand, it is not convenient to detect the oxygen and carbon dioxide concentrations in different areas of the pressurized chamber, making it difficult to control the air supply in the pressurized chamber according to the local environment. Summary of the Invention

[0005] In order to improve the problems raised in the above background technology, the present application provides, on the one hand, a fully automatic sampling system suitable for ultra-high pressure environment calibration, and on the other hand, provides a sample delivery method suitable for the above-mentioned fully automatic sampling system for ultra-high pressure environment calibration.

[0006] The fully automatic sampling system provided in this application, which is suitable for calibration in ultra-high pressure environments, adopts the following technical solutions:

[0007] A fully automatic sampling system suitable for ultra-high pressure environment calibration includes a normal pressure online gas detection system and a high pressure in-situ online detection system. The normal pressure online gas detection system samples and detects the ambient gas in a pressurized cabin under normal pressure and generates a normal pressure detection signal; the high pressure in-situ online detection system samples and detects the ambient gas in a pressurized cabin under high pressure and generates a high pressure detection signal; the normal pressure detection signal and the high pressure detection signal are processed by a processing module and output to a display instrument for display and storage.

[0008] The atmospheric pressure online gas detection system includes a sampling module, a mass spectrometry detection module and a carbon monoxide detection module. The ambient gas in the pressurized cabin is sampled by the sampling module to obtain a sample airflow, and the sample airflow is input into the mass spectrometry detection module and the carbon monoxide detection module respectively. The mass spectrometry detection module is used to detect the gas concentrations of ammonia, hydrogen sulfide, carbon dioxide, oxygen, methane, nitrogen and helium in the ambient gas in the pressurized cabin, and the carbon monoxide detection module is used to detect the gas concentration of carbon monoxide in the ambient gas in the pressurized cabin.

[0009] The high-pressure in-situ online detection system includes an oxygen in-situ online detection device and a carbon dioxide in-situ online detection device. The oxygen in-situ online detection device and the carbon dioxide in-situ online detection device independently perform in-situ online detection of oxygen and carbon dioxide in the pressurized cabin. The oxygen in-situ online detection device or the carbon dioxide in-situ online detection device is provided with a plurality of sampling points. The plurality of sampling points are evenly arranged along the pressurized cabin, and the plurality of sampling points have a height difference in height position.

[0010] Furthermore, the mass spectrometry detection module is provided with dual mass spectrometry sources, and the dual mass spectrometry sources are respectively provided as a PTR mass spectrometry source and an EI mass spectrometry source.

[0011] Furthermore, an electric regulating valve and a pressure controller are installed at the air inlet end of the sampling module. The electric regulating valve adjusts the input state according to the feedback signal of the pressure controller, so that the sample airflow input into the sampling module can be pressure-controlled.

[0012] Furthermore, the sampling module includes two groups of sampling pipes, dewatering pipes and pre-concentration and enrichment pipes, and the two groups of sampling pipes are respectively arranged at the two ends of the sampling module, and one section of the sampling pipe is connected to the pressurized cabin, and the other section of the sampling pipe is connected to the mass spectrometry detection module and the carbon monoxide detection module. The dewatering pipe and the pre-concentration and enrichment pipe are arranged in sequence between the two groups of sampling pipes along the air flow conveying direction, and the two ends of the dewatering pipe are respectively connected to the two groups of sampling pipes, or one end of the dewatering pipe is connected to the adjacent sampling pipe, and the other end is connected to the pre-concentration and enrichment pipe.

[0013] Furthermore, the dewatering pipe includes a pipe body that is respectively connected to the adjacent sample inlet pipe and the pre-concentration and enrichment pipe, and the pipe body includes an input section, a first transition section, a water guide section, a second transition section, an output section, a condenser, a drip pipe, a water inlet pipe and a water outlet pipe. The input section and the output section are arranged at both ends of the pipe body along the same axis, and the opposite ends of the input section and the output section are respectively connected to the first transition section and the second transition section. The first transition section and the second transition section are connected by a condenser, and the water guide section cover is arranged on the outside of the condenser, and the two ends of the water guide section are respectively connected to the first transition section and the second transition section. The transition section is connected and fixed, the bottom of the condenser is connected to be provided with a drip pipe, the bottom and top of the water guide section are respectively connected to be provided with a water inlet pipe and a water outlet pipe, the water inlet pipe and the water outlet pipe input and output cooling water respectively, the sample airflow flows through the input section, the first transition section, the condenser, the second transition section and the output section in sequence and is input into the pre-concentration enrichment tube, the dewatering pipe also includes a drainage block, the drainage block is formed at the bottom of the inner wall of the condenser, and the top of the drainage block is set to an inclined surface, and the inclined surface of the drainage block decreases in height from the side close to the second transition section to the side close to the drip pipe.

[0014] Furthermore, the water removal pipe further includes an adsorption layer, and the adsorption layer is arranged in the second transition section.

[0015] The sample delivery method provided in this application, which is suitable for ultra-high pressure environment calibration, adopts the following technical solution:

[0016] A sample delivery method suitable for ultra-high pressure environment calibration, which is carried out in the following steps:

[0017] Step 1: Perform atmospheric pressure online gas sampling and testing, and generate atmospheric pressure detection signals based on the test results;

[0018] Step 2: Perform high-voltage in-situ online sampling and testing, and generate a high-voltage detection signal based on the test results;

[0019] Step 3: The normal pressure detection signal and the high pressure detection signal are transmitted to the display instrument, and the output shows the gas concentration of each component of the ambient gas in the pressurized cabin at normal pressure, as well as the concentration distribution of oxygen and carbon dioxide in different areas of the pressurized cabin.

[0020] Furthermore, the atmospheric pressure online gas sampling in step 1 includes the following steps:

[0021] Step 11: Using flow limiting and pressure control to adjust the pressure of the sample airflow in the sampling pipe of the input sampling module so that the sample airflow in the input sampling module remains stable;

[0022] Step 12: Dewatering the sample airflow input into the sampling module;

[0023] Step 13: Concentrate and enrich the sample airflow after step 12.

[0024] Furthermore, the high-pressure in-situ online sampling in step 2 includes the following steps:

[0025] Step 21: Select 5 to 15 sampling points according to the structure of the pressurized cabin;

[0026] Step 22: Install a carbon dioxide detection sensor and an oxygen detection sensor at the sampling point, and perform sampling and testing at the sampling point.

[0027] The beneficial technical effects of the present application are as follows: by providing a normal pressure online gas detection system, it can have real-time monitoring and rapid response to the gas to be tested, and has the characteristics of high-sensitivity detection, thereby ensuring real-time monitoring of various components of the gas in the cabin; by providing a high-pressure in-situ online detection system, targeted sampling points can be taken according to the characteristics of the generation and deposition of carbon dioxide in the high-pressure cabin, and the carbon dioxide concentration distribution gradient in the cabin can be constructed according to the detection data of the sensor, thereby facilitating the air supply system to start or increase the working power according to the changes in the carbon dioxide concentration distribution gradient. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 Schematic diagram of the structure of a fully automatic sampling system suitable for calibration in an ultra-high pressure environment according to an embodiment of the present application;

[0029] Figure 2 This is a schematic diagram of the system structure of the sampling module in an embodiment of the present application;

[0030] Figure 3 This is a schematic diagram of the structure of the water removal pipe after being cut open in the embodiment of the present application;

[0031] Figure 4 yes Figure 3 Schematic diagram of the structure of the middle tube body;

[0032] Figure 5 is a cross-sectional view of a pre-concentration and enrichment tube in an embodiment of the present application;

[0033] Figure 6 This is a schematic diagram of the performance indicators of the atmospheric pressure online gas detection system in the embodiment of the present application;

[0034] Figure 7 This is a schematic diagram of the performance indicators of the high-voltage in-situ online detection system in the embodiment of the present application;

[0035] Figure 8 1. It is a top view of the sampling point of the high-voltage in-situ online detection system in the embodiment of the present application;

[0036] Figure 9It is a front view of the sampling points of the high-voltage in-situ online detection system in the embodiment of the present application.

[0037] Figure numerals: 10, water removal pipe; 11, pipe body; 111, input section; 112, first transition section; 113, water guide section; 114, second transition section; 115, output section; 116, condenser; 117, drip pipe; 118, water inlet pipe; 119, water outlet pipe; 12, drainage block; 13, adsorption layer. DETAILED DESCRIPTION

[0038] The following will clearly and completely describe the technical solution of this application in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this application.

[0039] The embodiments of the present application disclose a fully automatic sampling system and a sample delivery method suitable for calibration in an ultra-high pressure environment.

[0040] The fully automatic sampling system suitable for ultra-high pressure environment calibration includes a normal pressure online gas detection system and a high pressure in-situ online detection system. The normal pressure online gas detection system is used to sample and detect the ambient gas in the pressurized cabin under normal pressure and generate a normal pressure detection signal; the high pressure in-situ online detection system is used to sample and detect the ambient gas in the pressurized cabin under high pressure and generate a high pressure detection signal; the normal pressure detection signal and the high pressure detection signal obtained by the normal pressure online gas detection system and the high pressure in-situ online detection system are processed by the processing module and output to the display instrument for display and storage. In this application, the normal pressure environment detection pressure referred to is about 1 bar, and the high pressure environment detection pressure referred to is at least 10 bar. In this application, the processing module referred to is a computer system commonly used in this field, which uses a computer program pre-stored in a storage medium to convert the received detection signal into readable data for display on the display instrument.

[0041] Reference Figure 1The normal pressure online gas detection system may include an electric regulating valve, a pressure controller, a sampling module, a mass spectrometry detection module and a carbon monoxide detection module. The electric regulating valve and the pressure controller are installed at the air inlet end of the sampling module. The electric regulating valve can adjust the input state according to the feedback signal of the pressure controller, so that the sample airflow input to the sampling module can be pressure-controlled and kept relatively stable at normal pressure. After the ambient gas in the pressurized cabin is sampled by the sampling module to obtain the sample airflow, it can be input into the mass spectrometry detection module and the carbon monoxide detection module for detection. The mass spectrometry detection module can adopt a dual mass spectrometry source provided with a PTR mass spectrometry source and an EI mass spectrometry source to detect the gas concentrations of ammonia, hydrogen sulfide, carbon dioxide, oxygen, methane, nitrogen and helium in the ambient gas in the pressurized cabin. The carbon monoxide detection module can adopt the technical solution of combined detection of optical cavity ring-down spectroscopy to detect the gas concentration of carbon monoxide in the ambient gas in the pressurized cabin.

[0042] See Figure 8 and Figure 9 The high-pressure in-situ online detection system may include an oxygen in-situ online detection device and a carbon dioxide in-situ online detection device. The oxygen in-situ online detection device and the carbon dioxide in-situ online detection device can independently perform in-situ online detection of oxygen and carbon dioxide in the pressurized cabin. The oxygen in-situ online detection device or the carbon dioxide in-situ online detection device is provided with a plurality of sampling points, which are evenly arranged along the pressurized cabin, and the plurality of sampling points have height differences in their height positions. For example, Figure 8 and Figure 9 In the diagram, asterisks indicate sampling points, and seven sampling points are set up for sampling at different locations and altitudes in the pressurized cabin. Carbon dioxide and oxygen sensors can be installed at each sampling point, and sampling and testing can be performed in situ at each sampling point.

[0043] See Figure 2The sampling module may include two sets of sampling pipes, a water removal pipe 10, and a pre-concentration enrichment pipe. In this embodiment, considering that ammonia and hydrogen sulfide are viscous and corrosive, the sampling pipes may be passivated stainless steel pipes or polytetrafluoroethylene pipes, and the sampling pipes may be heated and temperature-controlled to reduce gas transmission losses. The two sets of sampling pipes may be respectively arranged at both ends of the sampling module, and one section of the sampling pipe is used to connect to the pressurized cabin, and the other section of the sampling pipe is used to connect to the mass spectrometry detection module and the carbon monoxide detection module, so that the sampling airflow can be guided through the two sets of sampling pipes to flow through the sampling module. The dewatering pipe 10 and the pre-concentration and enrichment pipe are arranged in sequence between the two groups of sampling pipes along the air flow conveying direction. The two ends of the dewatering pipe 10 are respectively connected to the two groups of sampling pipes, or one end of the dewatering pipe 10 is connected to the adjacent sampling pipe, and the other end is connected to the pre-concentration and enrichment pipe. The sampling airflow can pass through the dewatering pipe 10 to reduce the moisture in the airflow, and part of the sampling airflow can also use the pre-concentration and enrichment pipe to enrich the trace components in the sample airflow, and then output it to the mass spectrometry detection module and the carbon monoxide detection module.

[0044] See Figure 3 and Figure 4The dewatering tube 10 may include a tube body 11 and a drainage block 12, each connected to the adjacent sample inlet pipe and pre-concentration and enrichment tube. The tube body 11 may include an input section 111, a first transition section 112, a water guide section 113, a second transition section 114, an output section 115, a condenser 116, a drip tube 117, an inlet pipe 118, and an outlet pipe 119. The input section 111 and the output section 115 are arranged along the same axis at opposite ends of the tube body 11. The first and second transition sections 112, 114 are connected at their facing ends. The first and second transition sections 112, 114 are connected by a condenser 116. The sample gas flow can flow through the input section 111, the first transition section 112, the condenser 116, the second transition section 114, and the output section 115 in sequence before being input into the pre-concentration and enrichment tube. The water guide section 113 is mounted on the outside of the condenser 116, and the two ends of the water guide section 113 are respectively connected and fixed to the first transition section 112 and the second transition section 114. Cooling water can be added to the gap between the water guide section 113 and the condenser 116 for heat exchange with the condenser 116, and can condense the moisture contained in the sample airflow in the condenser 116 into water droplets. The bottom of the condenser 116 is connected to the drip tube 117, which is used to drain the condensed water droplets. The drainage block 12 is formed at the bottom of the inner wall of the condenser 116, and the top of the drainage block 12 is configured as an inclined surface. The inclined surface of the drainage block 12 decreases in height from the side close to the second transition section 114 to the side close to the drip tube 117, so that the condensed water droplets can be guided by the drainage block 12 to the drip tube 117 for accumulation and drainage. The bottom and top of the water guide section 113 are connected to a water inlet pipe 118 and a water outlet pipe 119 respectively. The water inlet pipe 118 and the water outlet pipe 119 can be used to input and output cooling water respectively.

[0045] In this embodiment, in order to better remove moisture from the sample airflow, the water removal tube 10 also includes an adsorption layer 13, which is arranged in the second transition section 114. The adsorption layer 13 can be made of a material with good water absorption in the prior art to form a sheet structure with a cross-section that is compatible with the cross-section of the second transition section 114. For example, the adsorption layer 13 can be made of a highly absorbent resin.

[0046] See Figure 5 In this application, a pre-concentration and enrichment tube made of Teflon AF 2400 amorphous fluoroplastic resin with a length of L, an inner diameter of D, and a wall thickness of X is used. The volume flow rates entering the tube, passing through the tube wall, and leaving the tube are respectively denoted by Q in , Q perm and Q outThe volume flow rate of the gaseous substance through the tube is represented by J. Teflon AF 2400, which is a commercially available amorphous glassy copolymer of tetrafluoroethylene (TFE) and 2,2-bis(trifluoromethyl)-4,5-difluoro-1,3-dioxole (BDD). The gas permeability of polytetrafluoroethylene AF 2400 follows the size sieving trend, that is, the permeability decreases with the increase of the critical volume of the gas species passing through the membrane. It can be understood that the aforementioned materials can be applied to other permeable materials instead, provided that the material has selective permeability between the relevant analyte and air. Each analyte has a certain permeability on the membrane depending on the critical volume, temperature, interaction with the tube polymer and to a certain extent the pressure difference. If the permeability of the analyte is lower than that of air, relatively more air will pass through the membrane, and Q relative to the remaining air. out The analyte concentration in the sample stream increases. This enrichment can be quantified as the excess concentration of the analyte in the outlet stream relative to the inlet stream. Pre-concentration tubes can be used to detect trace components such as ammonia, hydrogen sulfide, and methane in sample streams and enrich them before inputting them into the mass spectrometer detection module.

[0047] See Figure 6 The table shows the detection components and detection range requirements for the atmospheric pressure gas online detection in this application. The detection scheme for each detection component is given below:

[0048] 1. Detection scheme for ammonia and hydrogen sulfide

[0049] Because the proton affinities of the two gas molecules are high, a highly sensitive PTR ion source is used to achieve ionization and mass spectrometry detection via proton transfer reaction ionization. To meet the higher detection sensitivity requirements for hydrogen sulfide, an ion funnel source can also be used to extract water vapor and reduce the impact of humidity on hydrogen sulfide detection sensitivity.

[0050] 2. Detection solutions for carbon dioxide, oxygen (0-30% / 0-50%) and methane

[0051] Using EI source mass spectrometry mode, direct measurement of carbon dioxide, oxygen, (0-30% / 0-50%) is achieved through electron bombardment source, where (M / Z 16) There may be a small amount of O + (M / Z 16) ion signal interference, due to 70eV electron bombardment, The proportional relationship between them is fixed, so through Signal strength is obtained in real time + The signal intensity of O was deducted from the signal of (M / Z 16). + Signal strength, you can get The signal intensity is used to obtain the methane gas concentration.

[0052] 3. Detection solutions for high-purity helium, nitrogen and oxygen

[0053] For the detection of three high-purity gases, He (95%-100%), N2 (95%-100%), and O2 (95%-100%), the EI source mass spectrometry mode is adopted to achieve full spectrum detection of high-purity helium, nitrogen and oxygen gases through electron bombardment to obtain gas concentrations.

[0054] 4. Carbon monoxide detection solution

[0055] Mass spectrometry detection presents the challenge of distinguishing between nitrogen and carbon monoxide, as they share the same molecular weight (28). Therefore, a high-precision carbon monoxide detector based on the cavity ring-down principle can be used to independently measure carbon monoxide concentrations. Cavity ring-down spectroscopy (CRDS) systems achieve high-precision detection of trace gases by measuring and analyzing the time of laser ring-down signals. A typical CRS setup consists of a laser source that illuminates a high-finesse optical resonator and two highly reflective mirrors that form the cavity. When the laser and cavity modes resonate, the light intensity within the cavity rapidly increases due to constructive interference. The laser is then quickly switched off, allowing the exponential decay of the light escaping the cavity to be detected. During this decay, the light is reflected back and forth between the mirrors thousands of times, resulting in an effective absorption path length of several to tens of kilometers. If an absorbing material is placed within the cavity, the average lifetime of the photons within the cavity is reduced due to absorption. An intensity ring-down spectroscopy device measures the time required for the light intensity to decay to 1 / e of its previous intensity. This time is called the "ring-down time" and can be used to calculate the concentration of the light-absorbing substance in the cavity.

[0056] See Figure 7 The table shows the types of gases and detection ranges for in-situ online detection of high-pressure gases. Since each gas molecule has its own absorption (or radiation) spectrum characteristics, different gases correspond to different absorption spectra. When the same gas has different concentrations, the absorption intensity at the same absorption peak position is different. When the light source covers one or more absorption lines of the gas, the gas composition and concentration can be determined by detecting the degree of absorption of light of a specific wavelength by the gas. Therefore, a sensor that uses absorption spectroscopy technology to detect gas concentration can be used to detect the gas concentration of oxygen and carbon dioxide at different locations in the pressurized cabin. When arranging sampling points, it is important to avoid selecting air supply jet areas and avoid points that are too close to corners or walls to reduce detection errors.

[0057] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A fully automatic sampling system suitable for calibration in ultra-high pressure environments, characterized in that: It includes a normal pressure online gas detection system and a high pressure in-situ online detection system. The normal pressure online gas detection system samples and detects the ambient gas in the pressurized cabin under normal pressure and generates a normal pressure detection signal; the high pressure in-situ online detection system samples and detects the ambient gas in the pressurized cabin under high pressure and generates a high pressure detection signal; the normal pressure detection signal and the high pressure detection signal are processed by the processing module and output to the display instrument for display and storage. The atmospheric pressure online gas detection system includes a sampling module, a mass spectrometry detection module, and a carbon monoxide detection module. The ambient gas in the pressurized cabin is sampled by the sampling module to obtain a sample airflow, and the sample airflow is input into the mass spectrometry detection module and the carbon monoxide detection module respectively. The mass spectrometry detection module is used to detect the gas concentrations of ammonia, hydrogen sulfide, carbon dioxide, oxygen, methane, nitrogen, and helium in the ambient gas in the pressurized cabin, and the carbon monoxide detection module is used to detect the gas concentration of carbon monoxide in the ambient gas in the pressurized cabin. Among them, the high-pressure in-situ online detection system includes an oxygen in-situ online detection device and a carbon dioxide in-situ online detection device. The oxygen in-situ online detection device and the carbon dioxide in-situ online detection device independently perform in-situ online detection of oxygen and carbon dioxide in the pressurized cabin. The oxygen in-situ online detection device or the carbon dioxide in-situ online detection device is provided with a plurality of sampling points, and the plurality of sampling points are evenly arranged along the pressurized cabin, and the plurality of sampling points have a height difference in height position.

2. The fully automatic sampling system suitable for ultra-high pressure environment calibration according to claim 1, characterized in that: The mass spectrometry detection module is provided with dual mass spectrometry sources, which are respectively configured as a PTR mass spectrometry source and an EI mass spectrometry source.

3. The fully automatic sampling system suitable for ultra-high pressure environment calibration according to claim 1, characterized in that: The air inlet end of the sample module is installed with an electric regulating valve and a pressure controller. The electric regulating valve adjusts the input state according to the feedback signal of the pressure controller so that the sample airflow input to the sampling module can be pressure-controlled.

4. A fully automatic sampling system suitable for ultra-high pressure environment calibration according to claim 1 or 3, characterized in that: The sampling module comprises two groups of sampling pipes, a dewatering pipe (10) and a pre-concentration and enrichment pipe, the two groups of sampling pipes are respectively arranged at the two ends of the sampling module, and one section of the sampling pipe is connected to the pressurized cabin, and the other section of the sampling pipe is connected to the mass spectrometry detection module and the carbon monoxide detection module. The dewatering pipe (10) and the pre-concentration and enrichment pipe are sequentially arranged between the two groups of sampling pipes along the air flow conveying direction, and the two ends of the dewatering pipe (10) are respectively connected to the two groups of sampling pipes, or one end of the dewatering pipe (10) is connected to the adjacent sampling pipe, and the other end is connected to the pre-concentration and enrichment pipe.

5. The fully automatic sampling system suitable for ultra-high pressure environment calibration according to claim 4, characterized in that: The dewatering pipe (10) includes a pipe body (11) which is respectively connected to an adjacent sample inlet pipe and a pre-concentration and enrichment pipe, and the pipe body (11) includes an input section (111), a first transition section (112), a water guide section (113), a second transition section (114), an output section (115), a condenser (116), a drip pipe (117), a water inlet pipe (118) and a water outlet pipe (119). The input section (111) and the output section (115) are arranged at two ends of the pipe body (11) along the same axis, and the opposite ends of the input section (111) and the output section (115) are respectively connected to the first transition section (112) and the second transition section (114). The water guide section (113) is connected by a condenser (116), and the water guide section (113) is covered on the outside of the condenser (116), and the two ends of the water guide section (113) are respectively connected and fixed to the first transition section (112) and the second transition section (114). The bottom of the condenser (116) is connected to a drip pipe (117), and the bottom and top of the water guide section (113) are respectively connected to a water inlet pipe (118) and a water outlet pipe (119). The water inlet pipe (118) and the water outlet pipe (119) input and output cooling water respectively. The sample airflow flows through the input section (111), the first transition section (112), the condenser (116), the second transition section (114) and the output section (115) in sequence and is input into the pre-concentration enrichment tube.

6. The fully automatic sampling system suitable for ultra-high pressure environment calibration according to claim 5, characterized in that: The dewatering pipe (10) further includes a drainage block (12), the drainage block (12) being formed at the bottom of the inner wall of the condenser pipe (116), and the top of the drainage block (12) being arranged as an inclined surface, and the inclined surface of the drainage block (12) being inclined in a manner that decreases in height from a side close to the second transition section (114) to a side close to the drip pipe (117).

7. The fully automatic sampling system suitable for ultra-high pressure environment calibration according to claim 6, characterized in that: The dewatering pipe (10) further comprises an adsorption layer (13), and the adsorption layer (13) is arranged in the second transition section (114).

8. A sample delivery method suitable for ultra-high pressure environment calibration, used in the fully automatic sample injection system suitable for ultra-high pressure environment calibration according to any one of claims 1 to 7, characterized in that Follow the steps below to send samples for testing: Step 1: Perform atmospheric pressure online gas sampling and testing, and generate atmospheric pressure detection signals based on the test results; Step 2: Perform high-voltage in-situ online sampling and testing, and generate a high-voltage detection signal based on the test results; Step 3: The normal pressure detection signal and the high pressure detection signal are transmitted to the display instrument, and the output shows the gas concentration of each component of the ambient gas in the pressurized cabin at normal pressure, as well as the concentration distribution of oxygen and carbon dioxide in different areas of the pressurized cabin.

9. The sample delivery method suitable for calibration in an ultra-high pressure environment according to claim 8, characterized in that: In step 1, the atmospheric pressure online gas sampling includes the following steps: Step 11: Using flow limiting and pressure control to adjust the pressure of the sample airflow in the sampling pipe of the input sampling module so that the sample airflow in the input sampling module remains stable; Step 12: Dewatering the sample airflow input into the sampling module; Step 13: Concentrate and enrich the sample airflow after step 12.

10. The sample delivery method suitable for ultra-high pressure environment calibration according to claim 8, characterized in that: In step 2, high-pressure in-situ online sampling includes the following steps: Step 21: Select 5 to 15 sampling points according to the structure of the pressurized cabin; Step 22: Install a carbon dioxide detection sensor and an oxygen detection sensor at the sampling point, and perform sampling and testing at the sampling point.

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