Residential cabin gas analysis system

Abstract

The invention discloses a residential cabin gas analysis system. The system comprises a residential cabin body, a gas supply assembly, a sensor assembly, a sampling pipe, a gas analyzer and a controller, the sensor assembly comprises an oxygen sensor, a carbon dioxide sensor, a moving part and a track, the track is laid along the linear air pipe and the air supply branch pipe, the oxygen sensor and the carbon dioxide sensor are carried on the moving part, and the moving part is matched with the track and can move along the track; the sampling pipe comprises a top end sampling port, a bottom end sampling port and a three-way valve which are arranged in the residential cabin body, two gas inlet ends of the three-way valve are respectively connected with the top end sampling port and the bottom end sampling port to switch the sampling ports, and the controller acquires data of the sensor assembly and the gas analyzer and compares the data. By combining the movable sensor assembly and the gas analyzer, the dynamic monitoring of the gas concentration of a plurality of areas in the residential cabin is realized, and the distribution conditions of oxygen and carbon dioxide can be obtained more comprehensively in real time.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of saturation diving life support, and particularly relates to a living cabin gas analysis system. BACKGROUND

[0002] The mobile saturation diving system is mainly used for deep diving operations, such as rescue and lifesaving, emergency rescue, and salvage tasks. The system is usually composed of multiple modules, including a living cabin module, a diving bell module, a hoisting module, a centralized operation control module, a life support equipment module, an emergency high-pressure escape cabin module, a support equipment module, and a gas source module (optional). The saturation living cabin serves as the main working and living space for divers, providing necessary gas supply and life support during deep-sea diving operations. The environmental gas in the living cabin and the transition cabin needs to be monitored by a special gas analysis system to ensure that the concentrations of oxygen and carbon dioxide meet safety requirements. Traditionally, these gas analysis systems set sampling ports and gas sampling pipelines to transport cabin air samples to oxygen and carbon dioxide analyzers for concentration analysis. The existing gas analysis method mainly relies on fixed sampling pipelines and sensor equipment, which sets sampling ports at different positions in the living cabin to send gas samples to the analysis instrument for testing.

[0003] Although the existing saturation diving system can monitor the cabin gas through the gas analyzer, the gas distribution in the living cabin is usually uneven due to the high cabin pressure and complex gas flow. The traditional gas sampling method transmits the gas sample to the analyzer for detection through the pipeline, which cannot effectively reflect the differences in oxygen and carbon dioxide concentrations in different areas of the cabin. A single gas sampling point may not capture the dynamic changes of the cabin gas, especially in a closed environment, where the gas concentration in local areas may differ greatly from the overall concentration, and the traditional sampling system cannot provide enough sampling points to cover all important areas. This makes the existing monitoring system unable to accurately warn of potential gas concentration problems in some cases, which may pose a certain safety risk. In addition, the gas analysis sampling pipeline system used in the existing technology is relatively simple and lacks dynamic monitoring of the cabin gas distribution, which cannot achieve fine management and real-time adjustment. Therefore, relying on fixed pipelines and sampling points for gas monitoring has great limitations, especially in complex environments and uneven gas flow, which makes it difficult to provide accurate and comprehensive monitoring results, affecting the safety and efficiency of divers. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides a living cabin gas analysis system, aiming to solve the problem that the traditional gas monitoring method cannot accurately reflect the uneven distribution of cabin gas, the system combines a movable sensor assembly and a gas analyzer to realize dynamic monitoring of the gas concentration in multiple areas of the living cabin, can more comprehensively and timely obtain the distribution of oxygen and carbon dioxide, thereby improving the accuracy and reliability of gas concentration monitoring.

[0005] To achieve the above object, the technical scheme of the present application is as follows: A living cabin gas analysis system, comprising a living cabin body, a gas supply assembly, a sensor assembly, a sampling pipe, a gas analyzer and a controller; the gas supply assembly comprises a compressed oxygen source, a pressure reducing valve and an air supply module, compressed oxygen in the compressed oxygen source flows into the living cabin body through the air supply module after being reduced in pressure by the pressure reducing valve; the air supply module comprises a main air supply port arranged on the top of the living cabin body and connected to the compressed oxygen source, the main air supply port is connected to a plurality of annularly arranged air supply branch pipes through a straight air pipe on the top of the living cabin body, the air supply branch pipes extend from the top of the living cabin body along the side wall to the middle and lower side of the living cabin body, and a plurality of air supply ends are arranged on the side of the air supply branch pipes facing the inside of the living cabin body; the sensor assembly comprises an oxygen sensor, a carbon dioxide sensor, a moving part and a track, the track is laid along the straight air pipe and the air supply branch pipes, the oxygen sensor and the carbon dioxide sensor are carried on the moving part, and the moving part is matched with the track and can move along the track; the sampling pipe comprises a top sampling port, a bottom sampling port and a three-way valve arranged at the top end of the living cabin body, two gas inlet ends of the three-way valve are respectively connected to the top sampling port and the bottom sampling port for switching of the sampling ports, and a gas outlet end of the three-way valve is connected to the gas analyzer, the gas analyzer comprises an oxygen analysis module and a carbon dioxide analysis module; the controller acquires data of the sensor assembly and the gas analyzer and compares them.

[0006] Preferably, it further comprises an exhaust assembly, the exhaust assembly comprises exhaust pipes arranged along the length direction of the living cabin body near both sides of the bottom of the living cabin body, a plurality of exhaust ends are uniformly distributed on the exhaust pipes, and the exhaust pipes are connected to a main exhaust port arranged on the living cabin body and communicating between the inside and the outside through an annular pipe.

[0007] Preferably, the moving part comprises an electric roller and a driving motor, the driving motor drives the electric roller to move along the track, and the oxygen sensor and the carbon dioxide sensor transmit the detected gas concentration data to the controller in real time through a wireless communication module.

[0008] Preferably, the controller comprises a data storage module for recording historical gas concentration data obtained by the gas analyzer and the sensor assembly and predicting the variation trend of oxygen and carbon dioxide concentrations based on an analysis model.

[0009] Preferably, the controller comprises a correction module for dynamically correcting the gas concentration data obtained by the sampling tube and the gas analyzer based on the gas concentration data detected by the sensor assembly and generating an optimized result.

[0010] Preferably, the controller comprises an alarm module for triggering an audible and visual alarm and adjusting the working state of the gas supply assembly when any data of the sensor assembly and the gas analyzer exceeds a preset threshold.

[0011] Preferably, the controller comprises a data display module for generating a gas distribution map based on the gas concentration data detected by the sensor assembly and the gas analyzer and realizing the visualization of the distribution state of oxygen and carbon dioxide in the cabin.

[0012] Preferably, the mobile part comprises a cleaning device for cleaning the air supply end, and the cleaning device is started to clean the air supply end when the oxygen sensor detects that the oxygen concentration data of any air supply end is abnormal.

[0013] Preferably, the cleaning device comprises a flexible electrostatic brush and a mounting rod, and the flexible electrostatic brush is detachably inserted on the mobile part through the mounting rod.

[0014] Preferably, the air supply end is a hole plate, a diffuser or a grating air port, and a stop valve, a pressure reducing valve and a water trap are arranged between the gas analyzer and the three-way valve.

[0015] The present application has the following advantages: (1) The present application realizes the comprehensive monitoring and dynamic correction of the gas distribution in the living cabin by combining the movable sensor assembly and the fixed gas analyzer. Compared with the method of relying on a single detection means, the present application not only utilizes the stability and high precision of the fixed sampling pipeline, but also provides multi-point real-time dynamic data through the movable sensor assembly, thereby ensuring that the monitoring result is more accurate, reliable and comprehensive. At the same time, the controller can analyze and store the multi-point monitoring data, not only dynamically correct the monitoring result, but also generate a gas distribution map to realize the real-time visualization of the gas state and improve the intelligent level and safety of the system.

[0016] (2) The application makes full use of the pipeline structure of the air supply module arrangement, and the track is arranged in the pipeline, so that the sensor assembly can move along the track, and the structure is simple, compact, convenient to arrange and maintain, and the cost and implementation difficulty are reduced. At the same time, the sensor assembly can not only monitor the gas distribution state of the air supply end along the track, but also can obtain the working state of each air supply end in real time, and can automatically start the cleaning device to maintain the air supply end when detecting abnormal gas concentration, to ensure the uniformity of oxygen supply and the stability of equipment operation. The design integrates the detection and maintenance functions, improves the automation level and intelligent maintenance ability, effectively reduces the artificial maintenance cost and prolongs the service life of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0017] One or more embodiments are illustrated by way of example in the accompanying drawings that are not intended to be limiting of the embodiments so that the embodiments will be properly construed and understood. In the drawings, the same reference numerals are used to refer to similar elements throughout the various figures and embodiments of the application, in which:

[0018] Figure 1 It is a whole schematic view of the living cabin gas analysis system shown in the embodiment of the application. Figure 2 It is a cross-sectional schematic view of the living cabin body shown in the embodiment of the application. Figure 3 It is a connection schematic view of the controller shown in the embodiment of the application. Figure 4 It is a structural schematic view of the sensor assembly shown in the embodiment of the application. Figure 5 It is a structural schematic view of the cleaning device of the sensor assembly shown in the embodiment of the application.

[0019] Reference signs: 1-living cabin body; 2-gas supply assembly; 21-compressed oxygen source; 22-pressure reducing valve; 23-air supply module; 24-main air supply port; 25-straight air pipe; 26-air supply branch pipe; 27-air supply end; 3-sensor assembly; 31-oxygen sensor; 32-carbon dioxide sensor; 33-moving part; 34-track; 35-cleaning device; 351-flexible electrostatic brush; 352-mounting rod; 353-water storage tank; 4-sampling pipe; 41-top sampling port; 42-bottom sampling port; 43-three-way valve; 5-gas analyzer; 6-controller; 7-exhaust assembly; 71-exhaust pipe; 72-exhaust end; 73-annular pipeline; 74-main exhaust port. DETAILED DESCRIPTION

[0020] For the purpose of facilitating the understanding of the present application, the present application will be described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or one or more intervening elements can be present therebetween. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or one or more intervening elements can be present therebetween. The terms "vertical", "horizontal", "left", "right", "inner", "outer", and similar terms used in the description of the present application are for the purpose of illustration only. In the description of the present application, the terms "first", "second" are used only for the purpose of description and should not be construed as indicating relative importance or implying a specific number of the technical features indicated. Thus, unless otherwise specified, the features defined with "first", "second" can explicitly or implicitly include one or more of the features; the meaning of "plurality" is two or more. The term "comprising" and any variation thereof means non-exclusive inclusion, and one or more other features, integers, steps, operations, units, components and / or combinations thereof can be present or added.

[0021] In addition, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or internal communication of two elements. All technical and scientific terms used in the specification have the same meaning as understood by those skilled in the art to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing the specific embodiments and are not used to limit the present application. The term "and / or" used in the specification includes any and all combinations of one or more related listed items.

[0022] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0023] Please refer to Figures 1-5 The embodiment provides a living cabin gas analysis system, which comprises a living cabin body 1, a gas supply assembly 2, a sensor assembly 3, a sampling pipe 4, a gas analyzer 5 and a controller 6. The system provides compressed oxygen to the living cabin body 1 through the gas supply assembly 2, and monitors and analyzes the oxygen and carbon dioxide concentrations of the cabin gas, to ensure the safety and stability of the cabin environment. The gas supply assembly 2 comprises a compressed oxygen source 21, a pressure reducing valve 22 and a air supply module 23, the compressed oxygen source 21 is used to provide high-pressure oxygen, the oxygen is reduced through the pressure reducing valve 22, so that it is suitable for the working environment inside the living cabin body 1, and then is uniformly delivered to the living cabin body 1 through the air supply module 23.

[0024] The air supply module 23 includes a main air supply port 24 arranged on the top of the living cabin body 1 and connected to the compressed oxygen source 21, which serves as the starting point of oxygen delivery. The oxygen is delivered to a plurality of air supply branch pipes 26 arranged in a ring shape through a straight air pipe 25. The straight air pipe 25 is arranged along the top of the living cabin body 1 to provide a delivery channel for the air supply branch pipes 26, which extend from the top of the living cabin body 1 along the side wall to the middle and lower side of the living cabin body 1 to ensure that the oxygen covers the entire cabin space. A plurality of air supply ends 27 are arranged on the side facing the inside of the living cabin body 1 of the air supply branch pipes 26, which can adopt a hole plate, a diffuser or a grating air port structure to ensure uniform distribution of oxygen in the cabin while avoiding local gas concentration deviation.

[0025] The sensor assembly 3 includes an oxygen sensor 31, a carbon dioxide sensor 32, a moving part 33 and a track 34. The track 34 is laid along the straight air pipe 25 and the air supply branch pipe 26 to provide a moving path for the moving part 33 to monitor the gas concentration in different areas. The oxygen sensor 31 and the carbon dioxide sensor 32 are installed on the moving part 33, which can move along the track 34 to detect the oxygen and carbon dioxide concentrations at multiple positions in real time by moving along the air supply pipe.

[0026] The sampling pipe 4 includes a top end sampling port 41 arranged at the top end of the living cabin body 1 and a bottom end sampling port 42 arranged at the bottom end, and the switching of the sampling ports is controlled by a three-way valve 43. The top end sampling port 41 is used to collect the gas in the top area of the cabin, and the bottom end sampling port 42 is used to collect the gas in the bottom area of the cabin, thereby covering the gas distribution at different heights in the cabin. Two gas inlet ends of the three-way valve 43 are respectively connected to the top end sampling port 41 and the bottom end sampling port 42, and the gas outlet end is connected to the gas analyzer 5. The gas analyzer 5 includes an oxygen analysis module and a carbon dioxide analysis module, which can analyze the oxygen and carbon dioxide content of the sampled gas respectively to provide real-time monitoring data for the controller 6.

[0027] The controller 6 acquires and compares the detection data of the sensor assembly 3 and the gas analyzer 5. By comparing the dynamic detection data of the sensor assembly 3 and the fixed monitoring data of the sampling pipe 4, the controller 6 can generate more accurate gas concentration distribution, and record the historical data through data analysis and storage function. At the same time, the controller 6 can generate a gas distribution map to display the real-time distribution state of oxygen and carbon dioxide in the cabin, thereby improving the visual management level of the gas environment.

[0028] The exhaust assembly 7 in this embodiment includes exhaust pipes 71 arranged along the length of the living cabin body 1 on both sides near the bottom of the living cabin body 1. The arrangement of the exhaust pipes 71 enables them to cover the air flow area at a lower position in the cabin, facilitating the removal of accumulated gas and impurities at the bottom and ensuring the uniformity and flowability of air circulation in the cabin. The exhaust pipes 71 are uniformly distributed with multiple exhaust ends 72 arranged at a reasonable distance to achieve uniform distribution of exhaust flow and speed, thereby avoiding the problem of abnormal concentration caused by gas accumulation in local areas. The exhaust pipes 71 are connected to the main exhaust port 74 on the living cabin body 1 through an annular pipe 73, which reduces pressure loss in the exhaust path and improves exhaust efficiency. At the same time, the main exhaust port 74, as a gas discharge outlet, maintains unobstructed connection with the outside, enabling the cabin to quickly exhaust waste gas and effectively maintain the freshness and safety of the cabin air.

[0029] The moving part 33 includes an electric roller and a driving motor that drives the electric roller to move along the track 34. The electric roller is arranged on the track 34 and can run smoothly in cooperation with the track 34. At the same time, at the corresponding track 34 at the connection between the straight air pipe 25 and the air supply branch pipe 26, the electric roller can realize steering, thereby ensuring that the sensor assembly 3 can move along different air supply branch pipes 26 and realize detection coverage of each air supply branch pipe 26, further improving the comprehensiveness and accuracy of monitoring. The oxygen sensor 31 and the carbon dioxide sensor 32 are mounted on the moving part 33 and interact with the controller 6 through a wireless communication module to transmit real-time detection gas concentration data to the controller 6. The application of the wireless communication module enables the sensor assembly 3 to move without complex cable connections, improving the flexibility of operation and reducing maintenance difficulty and system complexity. At the same time, the moving monitoring of the sensor assembly 3 can be combined with the fixed monitoring of the sampling pipe 4 to realize dynamic adjustment and optimization analysis of the cabin gas distribution through the analysis and comparison function of the controller 6, ensuring that the cabin gas environment is always in a safe and stable state.

[0030] The controller 6 includes a data storage module for recording historical gas concentration data obtained by the gas analyzer 5 and the sensor assembly 3. The data storage module can store the collected gas concentration data by time period and support long-term data accumulation analysis, making it convenient for operators to master the changes in oxygen and carbon dioxide concentrations in the cabin through historical data trends. At the same time, the controller 6 predicts the change trend of oxygen and carbon dioxide concentrations based on an analysis model, analyzes the correlation between historical data and real-time monitoring data through an algorithm, provides prediction results for gas concentration adjustment, and takes adjustment measures in advance to ensure the stability of the cabin gas environment.

[0031] The controller 6 also includes a correction module, which dynamically corrects the gas concentration data obtained by the sampling tube 4 and the gas analyzer 5 according to the gas concentration data detected by the sensor component 3. The correction module can automatically calculate the error and compensate for it by comparing the data differences between the sensor component 3 and the sampling tube 4, thereby generating more accurate optimization results and improving the accuracy of gas analysis.

[0032] In practice, the correction module of controller 6 dynamically corrects gas concentration data to ensure the accuracy and reliability of monitoring results. For example, during a specific test, gas analyzer 5 detects an oxygen concentration of φ1 through top sampling port 41 of sampling tube 4 and an oxygen concentration of φ2 through bottom sampling port 42. Simultaneously, sensor assembly 3 moves along track 34 and calculates an average concentration of φ3 from the oxygen concentration data measured by oxygen sensor 31 at multiple detection points. Because the sampling data φ1 and φ2 from sampling tube 4 only reflect the concentration distribution at fixed sampling points, while the average concentration φ3 from sensor assembly 3 covers a wider area, combining the two can further improve the accuracy of data analysis.

[0033] The correction module of controller 6 first performs linear interpolation on φ1 and φ2 to calculate the theoretical average concentration φ4, which is:

[0034] Then, the correction module compares φ4 with the average concentration φ3 detected by sensor component 3 and calculates the error Δφ between the two:

[0035] Based on the error Δφ, the controller 6 determines whether the detection data of the gas analyzer 5 needs to be corrected. If Δφ exceeds the preset threshold ε, it is considered that the analysis results of the sampling tube 4 are biased. The correction module dynamically compensates φ1 and φ2 based on Δφ. For example, the correction module can adjust the weight ratio of φ1 and φ2 so that the final corrected concentration result φ5 is closer to φ3. The formula is:

[0036] Where k is a correction factor, which is dynamically calculated by the controller 6 based on historical data and environmental characteristics. Based on this, the controller 6 uses the corrected concentration result φ5 as the final gas concentration, which is further used to control the oxygen supply of the gas supply component 2 and determine the threshold of the alarm module.

[0037] For example, the gas analyzer 5 detects the oxygen concentration of φ1 = 18.0% through the top sampling port 41 of the sampling tube 4, detects the oxygen concentration of φ2 = 23.0% through the bottom sampling port 42, and the sensor assembly 3 moves along the track 34 and detects the average oxygen concentration of φ3 = 21.0% at multiple detection points through the oxygen sensor 31. Since the sampling data φ1 and φ2 of the sampling tube 4 only reflect the concentration distribution of the fixed sampling points, and the average concentration φ3 of the sensor assembly 3 can cover a wider area, the combination of the two can further improve the accuracy of data analysis. The correction module of the controller 6 first linearly interpolates φ1 and φ2 to calculate the theoretical average concentration φ4 = 20.5%; then, the correction module compares φ4 with the average concentration φ3 detected by the sensor assembly 3 and calculates the error Δφ = 0.5%. According to the error Δφ, the controller 6 judges whether the detection data of the gas analyzer 5 needs to be corrected. If Δφ exceeds the preset threshold ε (for example, 0.2%), it is considered that the analysis result of the sampling tube 4 is deviated, and the correction module dynamically compensates φ1 and φ2 based on Δφ, assuming k = 0.6, φ5 = 0.6 x 20.5% + 0.4 x 21.0% = 20.7% is calculated. At this time, the controller 6 takes 20.7% as the final concentration data, and sends adjustment instructions to the gas supply assembly 2 to adjust the oxygen supply amount or adjust the exhaust speed to ensure that the oxygen concentration gradually returns to the preset safe range. Through this correction process, the controller 6 can dynamically correct the deviation of fixed sampling and mobile detection, ensure the accuracy and real-time of gas concentration monitoring, and further improve the safety management level of the cabin gas environment.

[0038] Further, the controller 6 includes an alarm module that triggers an audible and light alarm to alert the operator when any data in the sensor assembly 3 and the gas analyzer 5 exceeds the preset threshold, and automatically adjusts the oxygen supply amount of the compressed oxygen source 21 or stops the air supply module 23 to quickly restore the cabin gas concentration to the safe range and ensure personnel safety. The controller 6 also includes a data display module that generates a gas distribution map based on the gas concentration data detected by the sensor assembly 3 and the gas analyzer 5. The data display module can display the generated gas distribution map in two-dimensional or three-dimensional graphical form on the display screen, making the oxygen and carbon dioxide distribution state in the cabin visually intuitive. The operator can analyze the gas distribution changes according to the real-time graphics and adjust the air supply strategy or exhaust scheme in time, improving the intelligent level and operation convenience of environmental management.

[0039] In addition, the moving part 33 includes a cleaning device 35 for cleaning the air supply end 27. When the oxygen sensor 31 detects abnormal oxygen concentration data of any air supply end 27, the controller 6 will automatically start the cleaning device 35 to clean the air supply end 27. At this time, if the concentration data monitored by the oxygen sensor 31 deviates from the normal range, the controller 6 will determine that the air supply end 27 may have dust or blockage, thereby affecting the uniform distribution of oxygen, so the cleaning device 35 will be started to clean and ensure the normal working state of the air supply end. The cleaning device 35 includes a flexible electrostatic brush 351 and a mounting rod 352, the flexible electrostatic brush 351 is used to clean the dust and particles on the air supply end 27 by electrostatic adsorption, to avoid dust spreading into the cabin and maintain air quality. The mounting rod 352 enables the flexible electrostatic brush 351 to be firmly inserted into the moving part 33 and easily disassembled and replaced when needed, ensuring long-term use and convenient maintenance of the cleaning device. Through this design, the cleaning device 35 can quickly respond when the oxygen concentration is abnormal, automatically clean, avoid oxygen supply uneven or concentration abnormal due to air supply end blockage, and improve the automation level and reliability of the system.

[0040] Further, the end of the flexible electrostatic brush 351 can be provided with a water storage tank 353, which can store clean water. When the air supply end 27 needs to be cleaned, the controller 6 will automatically start the cleaning device 35, and the flexible electrostatic brush 351 removes dust and particles on the air supply end 27 by electrostatic adsorption, while the water in the water storage tank 353 can flow out along the brush, further enhancing the cleaning effect. The water flow is evenly distributed on the air supply end 27 through the end of the brush, helping to remove dust and dirt and improving cleaning efficiency. On the other hand, the humidity monitoring module in the gas analyzer 5 detects that the humidity in the living cabin body 1 is too low, the water in the water storage tank 353 will flow out along the brush, water the air supply end 27, and moisten the gas flowing out through the air supply end 27. This design not only improves the cleaning effect, but also effectively increases the humidity of the air in the cabin, improves the gas humidification effect, and ensures that the gas environment in the living cabin is in a suitable humidity range, avoiding the influence of low humidity on the comfort and health of the divers. Through this design of combining cleaning and humidification, the cleaning device 35 can improve the performance and practicality of the living cabin gas analysis system in multiple aspects.

[0041] In this embodiment, a stop valve, a pressure reducing valve and a water trap are provided between the gas analyzer 5 and the three-way valve 43. The stop valve is used to control the opening and closing of the gas flow, ensuring accurate flow regulation before the gas enters the gas analyzer 5, preventing inaccurate analysis results due to excessive or insufficient gas flow. The pressure reducing valve is used to adjust the gas pressure entering the gas analyzer 5, adjusting the gas pressure to an appropriate range to meet the working requirements of the gas analyzer 5, avoiding excessive pressure affecting the measurement accuracy of the analyzer or causing equipment damage. The role of the water trap is to remove water from the gas entering the gas analyzer 5, preventing water from entering the gas analyzer 5 and affecting the accuracy of the analysis results, or causing corrosion of the electronic components inside the equipment. Through the cooperation of these three devices, the gas analyzer 5 can run normally and stably, and the accuracy and reliability of gas analysis can be improved.

[0042] In some embodiments, multiple sensor assemblies 3 can be used. Compared with using only one sensor assembly 3, multiple sensor assemblies 3 can obtain the distribution of the gas in the living cabin body 1 more quickly, thereby improving the monitoring efficiency and accuracy. Each sensor assembly 3 moves along the track 34, covering different positions in the cabin, and achieving comprehensive monitoring of the gas concentration. However, since multiple sensor assemblies 3 move along the track 34, in order to avoid collisions or congestion between them, the motion path of the sensor assemblies 3 must be reasonably planned. Through precise motion path design and scheduling, each sensor assembly 3 can move independently and smoothly, and interference between different sensor assemblies 3 can be avoided. In addition, multiple sensor assemblies 3 can transmit data and coordinate work through wireless communication modules, ensuring that they can independently and smoothly complete the monitoring task of the gas concentration at the same time, ensuring the accuracy of the data and the stability of the system.

[0043] In summary, the present application discloses a living cabin gas analysis system, which combines a movable sensor assembly and a gas analyzer to achieve comprehensive and real-time monitoring of oxygen and carbon dioxide concentrations in the living cabin. The system accurately measures the distribution of the gas in the cabin, solving the problem of not being able to comprehensively monitor the gas concentration under traditional single detection methods, ensuring the accuracy and reliability of gas analysis. In addition, the system also corrects the gas concentration data through a dynamic correction module, providing more accurate results, and maintains the smoothness of the air supply end through a cleaning device, further improving the stability and maintainability of the system. The present application innovatively combines fixed sampling and mobile monitoring methods to improve the accuracy of gas monitoring, and provides powerful functions in real-time data correction, dynamic adjustment of gas concentration and visualization of gas distribution. In addition, the system adopts a simple and efficient pipeline structure design, combined with an automatic cleaning function, reducing the need for manual maintenance and improving the automation and intelligence level of the system.

[0044] The technical scheme of the present application provides an innovative solution for the field of cabin gas analysis, which not only effectively improves the management ability of the cabin gas environment, but also provides valuable reference for gas monitoring technology in high-risk and high-precision environments such as deep-sea diving and space exploration. The application of the system will greatly promote the technical progress and safety guarantee in this field, and has a wide market prospect and important practical significance.

[0045] The above examples are only used to illustrate the technical scheme of the present application, but not to limit it; under the idea of the present application, the technical features in the above examples or different examples can also be combined, the steps can be implemented in any order, and there are many other changes of different aspects of the present application as described above, which are not provided in details for simplicity; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical scheme recorded in the foregoing examples can still be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical scheme deviate from the scope of the technical scheme of each embodiment of the present application.

Claims

1. A living cabin gas analysis system, characterized in that: The invention comprises a living cabin body (1), an air supply assembly (2), a sensor assembly (3), a sampling tube (4), a gas analyzer (5) and a controller (6); the air supply assembly (2) comprises a compressed oxygen source (21), a pressure reducing valve (22) and an air supply module (23); the compressed oxygen in the compressed oxygen source (21) is reduced in pressure by the pressure reducing valve (22) and then flows into the living cabin body (1) through the air supply module (23); the air supply module (23) comprises a main air supply port (24) connected to the compressed oxygen source (21) on the top of the living cabin body (1); the main air supply port (24) is connected to a plurality of annularly arranged air supply branches (26) through a straight air duct (25) on the top of the living cabin body (1); the air supply branches (26) extend from the top of the living cabin body (1) along the side wall to the middle and lower side of the living cabin body (1); the air supply branches (26) are arranged on one side facing the inside of the living cabin body (1); the sensor assembly (3) comprises an oxygen supply source (21), a pressure reducing valve (22) and an air supply module (23); the compressed oxygen in the compressed oxygen source (21) is reduced in pressure by the pressure reducing valve (22) and then flows into the living cabin body (1) through the air supply module (23); the air supply module (23) comprises a main air supply port (24) connected to the compressed oxygen source (21) on the top of the living cabin body (1); the main air supply port (24) is connected to a plurality of annularly arranged air supply branches (26) through a straight air duct (25) on the top of the living cabin body (1); the air supply branches (26) extend from the top of the living cabin body (1) along the side wall to the middle and lower side of the living cabin body (1); the air supply branches (26) have a plurality of air supply terminals (27) arranged on one side facing the inside of the living cabin body (1); An oxygen sensor (31), a carbon dioxide sensor (32), a moving part (33) and a track (34), wherein the track (34) is laid along the linear air duct (25) and the air supply branch pipe (26), the oxygen sensor (31) and the carbon dioxide sensor (32) are mounted on the moving part (33), and the moving part (33) cooperates with the track (34) and can move along the track (34); the sampling pipe (4) comprises a top sampling port (41), a bottom sampling port (42) and a three-way valve (43) arranged on the living cabin body (1), the two air inlet ends of the three-way valve (43) are respectively connected to the top sampling port (41) and the bottom sampling port (42) for switching the sampling ports, and the air outlet end of the three-way valve (43) is connected to a gas analyzer (5), and the gas analyzer (5) comprises an oxygen analysis module and a carbon dioxide analysis module; the controller (6) obtains data from the sensor assembly (3) and the gas analyzer (5) and compares them.

2. The living cabin gas analysis system according to claim 1, characterized in that: The invention also includes an exhaust assembly (7), wherein the exhaust assembly (7) includes an exhaust pipe (71) arranged on both sides of the bottom of the living cabin body (1) and arranged along the length direction of the living cabin body (1), and a plurality of exhaust terminals (72) are evenly distributed on the exhaust pipe (71). The exhaust pipe (71) is connected to a main exhaust port (74) connected to the inside and outside of the living cabin body (1) through an annular pipe (73).

3. The living cabin gas analysis system according to claim 2, characterized in that: The moving part (33) includes an electric roller and a drive motor, wherein the drive motor drives the electric roller to move along the track (34), and the oxygen sensor (31) and the carbon dioxide sensor (32) transmit detected gas concentration data to the controller (6) in real time via a wireless communication module.

4. The living cabin gas analysis system according to claim 3, characterized in that: The controller (6) includes a data storage module for recording historical gas concentration data acquired by the gas analyzer (5) and the sensor assembly (3), and predicting the change trend of oxygen and carbon dioxide concentrations based on an analysis model.

5. The living cabin gas analysis system according to claim 4, characterized in that: The controller (6) includes a correction module for dynamically correcting the gas concentration data obtained by the sampling tube (4) and the gas analyzer (5) according to the gas concentration data detected by the sensor assembly (3), and generating an optimization result.

6. The habitation cabin gas analysis system according to claim 5, characterized in that: The controller (6) includes an alarm module, which triggers an audible and visual alarm when any data in the sensor component (3) and the gas analyzer (5) exceeds a preset threshold value, and adjusts the working state of the gas supply component (2).

7. The habitation cabin gas analysis system according to claim 6, characterized in that: The controller (6) includes a data display module, which generates a gas distribution map based on the gas concentration data detected by the sensor component (3) and the gas analyzer (5), thereby realizing visualization of the distribution status of oxygen and carbon dioxide in the cabin.

8. The living cabin gas analysis system according to any one of claims 3 to 7, characterized in that: The moving part (33) includes a cleaning device (35) for cleaning the air supply terminal (27). When the oxygen sensor (31) detects that the oxygen concentration data of any air supply terminal (27) is abnormal, the cleaning device (35) is activated to clean the air supply terminal (27).

9. The habitation cabin gas analysis system according to claim 8, characterized in that: The cleaning device (35) comprises a flexible electrostatic brush (351) and a mounting rod (352), and the flexible electrostatic brush (351) is detachably plugged into the moving part (33) via the mounting rod (352).

10. The habitation cabin gas analysis system according to claim 1, characterized in that: The air supply terminal (27) is an orifice plate, a diffuser or a grille air outlet, and a stop valve, a pressure reducing valve and a water remover are provided between the gas analyzer (5) and the three-way valve (43).

Images