Configuration system of carbon dioxide mixed gas and control method thereof

By using high -precision intelligent sensor modules and automated control systems in the hybrid gas configuration system, the problem of low accuracy and unstable control of hybrid gases, high precision and stable control of mixed gas, improvement of production efficiency and product products quality.

CN119374034APending Publication Date: 2025-01-28QINGYUAN LIANXHENG AIR LIQUEFACTION CO LTD

Patent Information

Application Number
CN202411539866.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-10-31
Publication Date
2025-01-28

AI Technical Summary

Technical Problem

In the prior art, the mixing gas has low proportional accuracy and unstable control, resulting in uneven mixing process, affecting the quality and consistency of the final product, and increasing production costs and energy consumption.

Method used

Adopt high -precision intelligent sensor modules and automated control systems to monitor the concentration, pressure and temperature of mixed gas in real time, automatically adjust the gas flow to ensure the accurate ratio and stable control of mixed gas.

Benefits of technology

Improve the proportion accuracy and control stability of the mixed gas, ensure the consistency and efficiency of the hybrid process, and reduce production costs and energy consumption.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of mixed gas distribution, and discloses a carbon dioxide mixed gas configuration system and a control method thereof, and the carbon dioxide mixed gas configuration system comprises a gas storage tank, a high-precision intelligent sensor module, a control system module, a user interface and a mixing unit. The gas storage tank stores high-purity carbon dioxide and mixed gas, the mixing unit is a mixing chamber, the gas flow is accurately controlled through the flow control valve, and mixing in a preset formula proportion is achieved. By integrating a high-precision sensor, automatic control and a user-friendly operation interface, accurate proportioning, stability and high-efficiency preparation of mixed gas are realized. The system has the characteristic of high automation, and realizes accurate proportioning, stability and high-efficiency preparation of mixed gas through accurate control of gas flow, real-time monitoring and feedback adjustment and a user-friendly operation interface. Meanwhile, the system considers cost effectiveness, environmental protection requirements and safety, and a reliable mixed gas configuration solution is provided for enterprises.
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Description

Technical Field

[0001] The present invention belongs to the technical field of mixed gas distribution, and in particular relates to a configuration system for a carbon dioxide mixed gas and a control method thereof. Background Art

[0002] With the growing demand for mixed gases in industries such as industry, scientific research, and environmental protection, particularly for CO2 mixed gases, existing methods for preparing mixed gases suffer from shortcomings in terms of mixing accuracy and control stability. Traditional methods often rely on manual operation or simple automated control, resulting in insufficient mixing accuracy, unstable control processes, and potential unevenness during mixing. These issues not only affect the quality and consistency of the final product but also increase production costs and energy consumption.

[0003] To address these issues, we have proposed a novel CO2 gas mixture configuration system and control method. This system aims to improve gas mixture ratio accuracy, control stability, and overall efficiency through a high-precision intelligent sensor module, an automated control system, and a user-friendly interface. By monitoring various gas mixture parameters (such as concentration, pressure, and temperature) in real time, the system automatically adjusts gas flow to ensure consistent and stable mixing. Furthermore, the user interface allows operators to easily set parameters and monitor the mixing process, improving operational convenience. Summary of the Invention

[0004] The present invention aims to solve the technical problems of low ratio accuracy and unstable control in the traditional mixed gas configuration method in the above-mentioned prior art.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A carbon dioxide mixed gas configuration system, comprising:

[0007] Gas storage tanks, which are provided with several gas storage tanks and are used to store high-purity carbon dioxide and gases that need to be mixed;

[0008] High-precision intelligent sensor module, which includes gas concentration sensor, pressure sensor and temperature sensor;

[0009] The control system module includes a central processing unit, a control algorithm, and a data acquisition and analysis module for real-time monitoring and analysis of mixed gas parameters;

[0010] User interface, used for operator interaction with the system to set parameters and monitor;

[0011] A mixing unit, used to mix different gases to prepare the required mixed gas;

[0012] The gas storage tank is connected to the mixing unit through a pipeline. The high-precision intelligent sensor module is installed on the gas flow path to monitor gas parameters in real time. The high-precision intelligent sensor module is connected to the control system module. The control system module is adjusted according to the data provided by the high-precision intelligent sensor module. The control system module is also connected to the user interface. The operator sends control instructions and monitors the mixing process through the user interface. The data acquisition and analysis module receives data from the high-precision intelligent sensor module, and provides the data to the control system module and the user interface, and stores it for subsequent analysis.

[0013] Preferably, the mixing unit is a mixing chamber, and flow control valves are provided on the pipeline connecting the gas storage tank and the mixing unit to adjust the flow of the different gases. The flow control valves can precisely control the flow of the different gases, ensuring that the gases are mixed according to the preset formula ratio. Operators can quickly adjust the gas flow rates based on real-time monitoring data to address any changes during the mixing process.

[0014] Preferably, a gas concentration sensor is installed at the outlet of the mixing chamber to monitor the concentration of each gas in the mixed gas. The concentration sensor installed at the outlet of the mixing chamber can monitor the actual concentration of the mixed gas in real time to ensure that the final product meets the quality standards.

[0015] Preferably, pressure sensors are installed in the piping before and after the mixing chamber to monitor the pressure of the gas as it enters and leaves the mixing chamber. Monitoring the pressure entering and leaving the mixing chamber helps understand pressure changes during the mixing process and ensure stable operation of the system.

[0016] Preferably, a temperature sensor is installed inside the mixing chamber to monitor temperature changes of the gases during the mixing process. This ensures that the reaction proceeds at the optimal temperature. Temperature changes may affect the density and volume of the gases, and the temperature sensor can help correct for these effects, improving mixing accuracy.

[0017] A method for controlling a carbon dioxide mixed gas configuration system comprises the following steps:

[0018] S1. System initialization

[0019] When the system is started, input the target ratio, pressure, and temperature parameters of the mixed gas through the user interface and check whether all devices in the system are in normal working condition;

[0020] S2. Gas preparation

[0021] Ensure that the gas storage tanks for carbon dioxide and the gas required for mixing are full and have reached the required purity, open the valves from the gas storage tanks to the mixing unit, and prepare for gas flow;

[0022] S3. Mixed gas preparation

[0023] The flow rate of different gases is controlled by flow control valves to meet the preset mixing ratio. Gas concentration sensors, pressure sensors, and temperature sensors are used to monitor gas parameters in real time during the mixing process. Based on the data provided by the high-precision intelligent sensor module, the gas flow rate is automatically adjusted to ensure the accurate ratio of the mixed gas.

[0024] S4. Mixing process

[0025] The gases are initially mixed in the mixing chamber, and proper stirring or flow path design is used to promote gas mixing. Based on the initial mixing, the flow rates of each gas are further fine-tuned to improve the mixing accuracy.

[0026] S5. Data Collection and Analysis

[0027] The data acquisition and analysis module records various parameters of the mixed gas in real time, including flow, pressure, temperature and concentration, and performs real-time analysis on the collected data to evaluate the mixing effect and system performance;

[0028] S6. Quality Control

[0029] Extract samples from the mixed gas and perform offline analysis to verify the actual quality of the mixed gas. Adjust the mixing parameters based on the test results to optimize the mixing effect.

[0030] S7, Security Monitoring

[0031] Real-time monitoring of the pressure in the mixing unit and storage tank to ensure that it does not exceed safety limits. When abnormal conditions are detected, safety procedures are automatically or manually triggered;

[0032] S8, Output and Storage

[0033] The prepared mixed gas is output to the storage tank or directly supplied to the user. For the stored mixed gas, its quality is regularly checked to ensure long-term stability.

[0034] Preferably, in step S1, the gas concentration sensor, pressure sensor, temperature sensor, flow control valve, mixing chamber, and gas storage tank in the system are checked to see if they are in normal working condition. This can ensure the reliability of the entire system. Through pre-checking, problems can be discovered and maintained in a timely manner to avoid failures during operation.

[0035] Preferably, in step S7, when an abnormality is detected, the safety procedures triggered include closing valves and venting gas. This allows for a quick response to potential safety threats and reduces risks. Timely safety procedures can prevent system damage, reducing maintenance costs and downtime.

[0036] Compared with the prior art, the technical effects and advantages of the present invention are: the configuration system and control method of the carbon dioxide mixed gas, BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 is a system block diagram of the present invention;

[0038] Figure 2 It is a process flow chart of the present invention. DETAILED DESCRIPTION

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0040] The following is combined with Figure 1-2 To further explain this application,

[0041] The embodiment of the present application discloses a configuration system for a carbon dioxide mixed gas, including a gas storage tank, a high-precision intelligent sensor module, a control system module, a user interface, and a mixing unit;

[0042] The gas storage tank is equipped with several units, each used to store high-purity carbon dioxide and the gas to be mixed; the mixing unit is used to mix different gases to prepare the required mixed gas; the mixing unit is a mixing chamber, and the pipeline connecting the gas storage tank and the mixing unit is provided with a flow control valve for adjusting the flow of different gases. The flow control valve can accurately control the flow of different gases to ensure that the gases are mixed according to the preset formula ratio. The operator can quickly adjust the gas flow based on the real-time monitoring data to respond to any changes in the mixing process. By accurately controlling the flow, the mixing effect can be optimized, and the uniformity and stability of the mixed gas can be improved. Accurate flow control helps reduce the waste of raw materials and reduce costs.

[0043] High-precision intelligent sensor module includes gas concentration sensor, pressure sensor and temperature sensor;

[0044] Gas concentration sensors are installed at the outlet of the mixing chamber to monitor the concentration of each gas in the mixed gas. This sensor monitors the actual concentration of the mixed gas in real time, ensuring that the final product meets quality standards. This concentration data is fed back to the control system to adjust gas flow rates and ratios for greater mixing accuracy, aiding in final product quality control and ensuring the uniformity and consistency of the mixed gas.

[0045] Pressure sensors are installed in the piping before and after the mixing chamber to monitor the pressure of the gas as it enters and leaves the mixing chamber. Monitoring the pressure entering and leaving the mixing chamber helps understand pressure changes during the mixing process and ensures stable system operation. If the pressure rises abnormally, the system can respond promptly to avoid exceeding safety limits and protect equipment safety. Pressure data can be used to optimize the gas flow path and mixing process, thereby improving mixing efficiency.

[0046] Temperature sensors are installed inside the mixing chamber to monitor temperature changes during the mixing process. Monitoring temperature changes in the mixing chamber helps understand the thermodynamic behavior of the gases during mixing. For certain mixing processes that require specific temperature conditions, temperature sensors can ensure that the reaction proceeds at the optimal temperature. Temperature changes may affect the density and volume of the gases, and temperature sensors can help correct for these effects, improving mixing accuracy. Temperature sensors can also be used to monitor system overheating to prevent equipment damage and potential safety risks.

[0047] The control system module includes a central processing unit, control algorithms, and a data acquisition and analysis module for real-time monitoring and analysis of mixed gas parameters; the user interface is used for operator interaction with the system to set parameters and monitor them;

[0048] The gas storage tank is connected to the mixing unit through a pipeline. The high-precision intelligent sensor module is installed on the gas flow path to monitor gas parameters in real time. The high-precision intelligent sensor module is connected to the control system module. The control system module is adjusted according to the data provided by the high-precision intelligent sensor module. The control system module is also connected to the user interface. The operator sends control instructions and monitors the mixing process through the user interface. The data acquisition and analysis module receives data from the high-precision intelligent sensor module, and provides the data to the control system module and the user interface, and stores it for subsequent analysis.

[0049] This CO2 gas mixture preparation system utilizes high-precision intelligent sensor modules to monitor gas concentration, pressure, and temperature in real time, ensuring precise gas mixing. Advanced control algorithms automatically adjust gas flow based on sensor data, reducing human error and improving mixing accuracy. The system automatically performs mixing tasks without manual intervention, saving time and labor. The automatic control system can quickly respond to parameter changes and adjust the mixing process in a timely manner.

[0050] Real-time interaction between the high-precision intelligent sensor module and the control system ensures the stability of the mixing process. The user interface allows operators to monitor the mixing process in real time and promptly address any anomalies. The user interface allows operators to easily set parameters and monitor the mixing process, improving operational convenience. The user interface displays system status, facilitating maintenance and upgrades.

[0051] The system is designed with cost-effectiveness in mind, reducing overall construction costs. It optimizes the mixing process, reducing unnecessary energy consumption. This reduces raw material waste, helping to lower CO2 emissions. The system complies with environmental requirements and contributes to the company's sustainable development. The real-time monitoring system promptly identifies and addresses potential safety hazards. When an anomaly is detected, the system can automatically or manually trigger safety procedures.

[0052] Customized mixed gas configurations can be provided based on different application scenarios and user needs. The system is upgradeable and adaptable to technological advancements and changing market demands. Overall, by integrating high-precision sensors, automated control, and a user-friendly interface, the system not only improves the quality and efficiency of mixed gas preparation, but also reduces costs, enhances safety, and improves environmental performance, promising broad market application prospects.

[0053] A method for controlling a carbon dioxide mixed gas configuration system comprises the following steps:

[0054] S1. System initialization

[0055] When the system is started, input the target ratio, pressure, and temperature parameters of the mixed gas through the user interface and check whether all devices in the system are in normal working condition;

[0056] S2. Gas preparation

[0057] Ensure that the gas storage tanks for carbon dioxide and the gas required for mixing are full and have reached the required purity, open the valves from the gas storage tanks to the mixing unit, and prepare for gas flow;

[0058] S3. Mixed gas preparation

[0059] The flow rate of different gases is controlled by flow control valves to meet the preset mixing ratio. Gas concentration sensors, pressure sensors, and temperature sensors are used to monitor gas parameters in real time during the mixing process. Based on the data provided by the high-precision intelligent sensor module, the gas flow rate is automatically adjusted to ensure the accurate ratio of the mixed gas.

[0060] S4. Mixing process

[0061] The gases are initially mixed in the mixing chamber, and proper stirring or flow path design is used to promote gas mixing. Based on the initial mixing, the flow rates of each gas are further fine-tuned to improve the mixing accuracy.

[0062] S5. Data Collection and Analysis

[0063] The data acquisition and analysis module records various parameters of the mixed gas in real time, including flow, pressure, temperature and concentration, and performs real-time analysis on the collected data to evaluate the mixing effect and system performance;

[0064] S6. Quality Control

[0065] Extract samples from the mixed gas and perform offline analysis to verify the actual quality of the mixed gas. Adjust the mixing parameters based on the test results to optimize the mixing effect.

[0066] S7, Security Monitoring

[0067] Real-time monitoring of the pressure in the mixing unit and storage tank to ensure that it does not exceed safety limits. When abnormal conditions are detected, safety procedures are automatically or manually triggered;

[0068] S8, Output and Storage

[0069] The prepared mixed gas is output to the storage tank or directly supplied to the user. For the stored mixed gas, its quality is regularly checked to ensure long-term stability.

[0070] Specifically, in step S1, it is checked whether the gas concentration sensor, pressure sensor, temperature sensor, flow control valve, mixing chamber, and gas storage tank in the system are in normal working condition.

[0071] Checking that all key equipment (such as sensors, valves, mixing chambers, and gas storage tanks) are functioning properly during the system initialization phase can ensure the reliability of the entire system. Pre-inspection can identify problems and perform maintenance in a timely manner to avoid failures during operation. Ensuring that all equipment is functioning properly helps maintain accuracy and consistency in the mixing process. Checking the status of equipment such as sensors and valves helps ensure safe system operation and reduce unexpected risks.

[0072] Specifically, in step S7, when an abnormal situation is detected, the safety procedures triggered include closing the valve and discharging gas.

[0073] When an abnormal situation is detected, immediately triggering safety procedures (such as closing valves and venting gas) can quickly respond to potential safety threats and reduce risks. Timely safety procedures can prevent system damage, reduce maintenance costs and downtime, and by quickly venting gas and closing valves, the safety of operators and on-site personnel can be protected, gas leaks caused by abnormal situations can be avoided, and the impact on the environment can be reduced.

[0074] The process flow of the carbon dioxide mixed gas configuration system and its control method is as follows:

[0075] Specify the required mixture composition: Based on project requirements and market demand, clarify the proportions of each component in the required CO2 mixture, the uncertainty (dxi) and the total pressure of the mixture.

[0076] Feasibility Assessment: Assess whether the precise configuration of the required gas mixture can be achieved under current technology and equipment conditions. If the current conditions cannot meet the requirements, consider technology upgrades or equipment replacements. If feasible, proceed to the next step.

[0077] Select a preparation method: Based on the feasibility analysis, choose an appropriate gas mixing method. This may include physical mixing, chemical reaction, and other methods. Consider alternative solutions to ensure the project is flexible and adaptable to potential technical challenges.

[0078] Calculate mass and uncertainty: Based on the selected preparation method, calculate the mass and uncertainty of each component in the mixed gas to verify whether the mixed gas meets the preset accuracy requirements.

[0079] Check whether the calculated uncertainty is within the acceptable range. If the uncertainty meets the requirements, proceed to the next step to determine the composition and filling of the gas mixture. If it does not meet the requirements, it is necessary to re-evaluate the preparation method or adjust the gas mixture composition.

[0080] Determine the composition of the gas mixture and the filling procedure: Based on the results of the previous steps, determine the final gas mixture formula and the procedure for filling into the tank.

[0081] Prepare mixed gas: Prepare mixed gas using a carbon dioxide mixed gas configuration system according to the determined formula and procedures.

[0082] Calculate the gas mixture composition: After the gas mixture is prepared, recalculate the actual ratio of each component in the mixture to verify the accuracy of the mixing process. If the gas mixture composition meets the requirements, proceed to the next step of verification. If not, investigate the cause and make appropriate adjustments.

[0083] Verification and inspection: Carry out quality inspection and inspection on the prepared mixed gas to ensure that the quality and accuracy of the mixed gas meet the predetermined standards.

[0084] Test report: Prepare a test report to record the mixture preparation process, test results and system performance in detail for subsequent analysis and improvement.

[0085] The entire process route is a closed-loop process from demand analysis to mixed gas preparation and then to quality verification, aiming to ensure that the CO2 mixed gas configuration system can accurately and efficiently meet market demand.

[0086] This CO2 mixture configuration system and control method can accurately configure CO2 mixtures in the industrial field to meet the needs of specific industrial processes and improve production efficiency. This helps ensure the consistency and stability of product quality. In the environmental field, optimizing the configuration of the mixture helps reduce CO2 emissions, achieve rational resource utilization, and reduce energy consumption. In the scientific research field, it provides accurate mixtures for scientific research experiments, promotes related research progress, and opens up new possibilities for scientific research.

[0087] The system can achieve precise mixing ratios of carbon dioxide and other gases. It features automated control capabilities, improving configuration efficiency and stability. It monitors various parameters of the gas mixture in real time and intelligently adjusts configuration parameters based on actual needs, ensuring long-term stable system operation. Advanced control technology improves the accuracy and stability of gas mixture configuration. The integration of automated data collection, analysis, and process management capabilities enables intelligent system operation.

[0088] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A system for disposing a carbon dioxide mixed gas, characterized in that: include: Gas storage tanks, which are provided with several gas storage tanks and are respectively used to store high-purity carbon dioxide and gases to be mixed; High-precision intelligent sensor module, which includes gas concentration sensor, pressure sensor and temperature sensor; A control system module, including a central processing unit, a control algorithm, and a data acquisition and analysis module for real-time monitoring and analysis of mixed gas parameters; User interface, used for operator interaction with the system to set parameters and monitor; A mixing unit, used to mix different gases to prepare a desired mixed gas; The gas storage tank is connected to the mixing unit through a pipeline. The high-precision intelligent sensor module is installed on the path of gas flow to monitor gas parameters in real time. The high-precision intelligent sensor module is connected to the control system module. The control system module is adjusted according to the data provided by the high-precision intelligent sensor module. The control system module is also connected to the user interface. The operator sends control instructions and monitors the mixing process through the user interface. The data acquisition and analysis module receives data from the high-precision intelligent sensor module, and provides the data to the control system module and the user interface, and stores it for subsequent analysis.

2. A carbon dioxide mixed gas configuration system according to claim 1, characterized in that: The mixing unit is a mixing chamber, and a flow control valve for adjusting the flow of different gases is arranged on the pipeline connecting the gas storage tank and the mixing unit.

3. A carbon dioxide mixed gas configuration system according to claim 2, characterized in that: The gas concentration sensor is installed at the outlet of the mixing chamber and is used to monitor the concentration of each gas in the mixed gas.

4. A carbon dioxide mixed gas configuration system according to claim 2, characterized in that: Pressure sensors are installed in the pipes before and after the mixing chamber to monitor the pressure of the gas as it enters and leaves the mixing chamber.

5. A carbon dioxide mixed gas configuration system according to claim 1, characterized in that: The temperature sensor is installed inside the mixing chamber to monitor the temperature change of the gas during the mixing process.

6. A method for controlling a carbon dioxide mixed gas configuration system according to any one of claims 1 to 5, characterized in that: The steps include: S1. System initialization When the system is started, input the target ratio, pressure and temperature parameters of the mixed gas through the user interface, and check whether all the equipment in the system is in normal working condition; S2. Gas preparation Ensure that the gas tanks for carbon dioxide and the gas required for mixing are full and have reached the required purity, open the valves from the gas tanks to the mixing unit, and prepare for gas flow; S3. Mixed gas preparation The flow rate of different gases is controlled by flow control valves to meet the preset mixing ratio. Gas concentration sensors, pressure sensors and temperature sensors are used to monitor gas parameters in real time during the mixing process. The gas flow rate is automatically adjusted based on the data provided by the high-precision intelligent sensor module to ensure the accurate ratio of the mixed gas. S4. Mixing process The gases are initially mixed in the mixing chamber, and proper stirring or flow path design is used to promote gas mixing. Based on the initial mixing, the flow rates of each gas are further fine-tuned to improve the mixing accuracy. S5. Data collection and analysis The data acquisition and analysis module records various parameters of the mixed gas in real time, including flow, pressure, temperature and concentration, and performs real-time analysis on the collected data to evaluate the mixing effect and system performance; S6. Quality Control Extract samples from the mixed gas and perform offline analysis to verify the actual quality of the mixed gas. Adjust the mixing parameters based on the test results to optimize the mixing effect. S7. Security monitoring Monitor the pressure of mixing units and storage tanks in real time to ensure that safety limits are not exceeded, and automatically or manually trigger safety procedures when abnormal conditions are detected; S8, Output and Storage The prepared mixed gas is output to the storage tank or directly supplied to the user. For the stored mixed gas, its quality is checked regularly to ensure long-term stability.

7. The control method of a carbon dioxide mixed gas configuration system according to claim 6, characterized in that: In step S1, check whether the gas concentration sensor, pressure sensor, temperature sensor, flow control valve, mixing chamber, and gas storage tank in the system are in normal working condition.

8. The control method of a carbon dioxide mixed gas configuration system according to claim 6, characterized in that: In step S7, when an abnormal situation is detected, the safety procedures triggered include closing the valve and exhausting the gas.

Citation Information

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