Gas pressurization conveying system and method

Abstract

The invention relates to the technical field of gas pressurization, in particular to a gas pressurization conveying system and method. The problems that in the prior art, flow and pressure control is not accurate, response is slow, the integration degree is low, and safety is insufficient are solved. The system comprises an air inlet mechanism, a pressurizing mechanism and an adjusting mechanism. The gas inlet mechanism is provided with gas by a first gas source; the pressurizing mechanism is used for performing high-pressure compression on gas; the adjusting mechanism comprises a flow controller with a flow sensor, a flow control unit and a flow control valve. Through a real-time monitoring and feedback mechanism, the flow control unit can adjust the flow control valve according to the preset flow value, and it is ensured that the flow of output gas is stable and accurate. The dynamic response speed of the system is increased, the system can quickly adapt to the pressure change of the downstream mixer, and the ideal mixing ratio is ensured. In addition, the optimization design improves the integration level of the system, and enhances the safety and reliability of the system.

Description

Technical Field

[0001] The present application relates to the field of gas pressurization technology, and in particular to a gas pressurization delivery system and method. Background Art

[0002] In the polyurethane board foaming industry, in order to obtain the ideal foam structure and physical properties, it is usually necessary to add a certain proportion of high-pressure nitrogen to the reaction system during the high-pressure (high pressure means the process pressure exceeds 15MPa) foaming process. The existing gas booster delivery system has the following problems: the traditional gas filling system is difficult to accurately control the flow and pressure of the booster gas, and the stability is poor and the dynamic response is insufficient; when applied to the polyurethane industry, the existing booster delivery system cannot respond quickly to the pressure fluctuations of the downstream mixer, resulting in the mixing ratio and effect cannot be guaranteed; the existing booster system mostly uses two-stage or multi-stage booster devices to complete compression and output separately, with poor integration, which is not conducive to on-site layout and installation, and increases the complexity and maintenance difficulty of the system; in the foaming system containing flammable and explosive components such as pentane, the existing gas booster delivery system is not safe and reliable enough. Summary of the invention

[0003] In view of one or more of the problems existing in the prior art, the present application provides a gas pressurization delivery system in a first aspect, comprising:

[0004] The air intake mechanism comprises a first air source for providing a first gas;

[0005] A pressurizing mechanism, connected to the air intake mechanism, and used to pressurize the first gas;

[0006] The regulating mechanism includes a flow controller, wherein a flow sensor, a flow control unit and a flow control valve are integrated inside the flow controller, wherein:

[0007] The air intake mechanism, the supercharging mechanism and the regulating mechanism are connected in sequence and integratedly mounted on the mounting frame;

[0008] The flow sensor is connected to the pressurizing mechanism and electrically connected to the flow control unit, and is used to measure the flow rate of the first gas after pressurization and transmit the measured value to the flow control unit;

[0009] The flow control unit is electrically connected to the flow control valve, and the flow control unit is preset with an expected first gas flow rate, and is used to compare the received pressurized first gas flow rate with the expected first gas flow rate, and output a control instruction to the flow control valve according to the comparison result;

[0010] The flow control valve is connected to the flow sensor and is used to adjust the output flow of the pressurized first gas according to the control instruction of the flow control unit.

[0011] The gas boost delivery system in the embodiment of the present application adopts a local closed-loop control mechanism, that is, the flow controller can monitor and adjust the first gas flow after boosting in real time to ensure that it matches the preset expected value. This ability of instant feedback and precise adjustment allows the system to respond quickly to changes in downstream demand and maintain highly stable gas output even in the face of a complex and changing working environment. The control method of the traditional host computer system has a reaction adjustment time of about 1 second, while the reaction adjustment time of the new solution provided in this application can reach 500 milliseconds, which greatly shortens the reaction adjustment time and provides more reliable support for the production process.

[0012] Preferably, the air intake mechanism further comprises a second gas source capable of providing a second gas, and the boosting mechanism adopts a two-stage booster, which is respectively connected to the first gas source and the second gas source, so that the first gas is boosted in two stages with the second gas as the driving gas.

[0013] The gas booster delivery system abandons the traditional host computer control system and uses a compressed second gas source to drive the booster, which fundamentally eliminates the safety hazards caused by the introduction of electricity, especially for working environments that handle flammable and explosive substances. The entire system does not use a 220V power supply, which further improves safety performance and ensures the safety of operators and the production environment.

[0014] Preferably, the air intake mechanism also includes a first pressure regulating valve, a first gas processing component and a first pressure gauge, the first pressure regulating valve is connected to the first gas source and the first gas processing component respectively, the first gas processing component is connected to the boosting mechanism, and the first pressure gauge is arranged between the first gas processing component and the boosting mechanism.

[0015] The gas booster delivery system can ensure the stability of the input gas pressure through the first pressure regulating valve, providing consistent initial conditions for the boosting process; pre-treat the gas (such as filtering and drying) through the first gas processing component to ensure gas purity and improve system reliability; and monitor the pressure of the treated gas in real time through the first pressure gauge, which is convenient for operators to monitor and adjust, ensuring safe and efficient operation of the system.

[0016] Preferably, the air intake mechanism also includes a second gas processing component, a second pressure regulating valve, a second pressure gauge and a first solenoid valve, the second gas processing component is connected to the second gas source, the second pressure regulating valve is connected to the second gas processing component, the first solenoid valve is respectively connected to the second pressure regulating valve and the two-stage supercharger, and the second pressure gauge is arranged between the second pressure regulating valve and the first solenoid valve.

[0017] The gas is purified by the second gas processing component, ensuring the purity and pressure stability of the power gas (such as compressed air) provided by the second gas source; the second pressure regulating valve stabilizes the input pressure to provide consistent working conditions for the two-stage supercharger; the first solenoid valve realizes remote control of the second gas circulation, improving operational flexibility and automation level; the second pressure gauge monitors the pressure of the second gas as the power gas in real time to ensure safe operation of the system and facilitate timely adjustment.

[0018] Preferably, the regulating mechanism further comprises a buffer, which is arranged between the boosting mechanism and the flow controller and is connected to the boosting mechanism and the flow controller respectively.

[0019] The buffer set between the boost mechanism and the flow controller effectively reduces system pressure fluctuations and provides stable gas output. The buffer can store additional high-pressure gas in a short period of time, quickly respond to changes in downstream demand, and ensure that the pressure and flow received by the flow controller are more stable, thereby improving the response speed and control accuracy of the entire system. In addition, it also acts as a buffer, reducing the frequent startup of the boost mechanism, extending the life of the equipment, and enhancing the overall stability and reliability of the system.

[0020] Preferably, the regulating mechanism further includes a third pressure regulating valve, which is disposed between the buffer and the flow controller and is connected to the buffer and the flow controller respectively.

[0021] The third pressure regulating valve is set between the buffer and the flow controller to ensure that the gas pressure entering the flow controller is stable and controllable. By accurately adjusting the gas pressure from the buffer to the flow controller, the third pressure regulating valve effectively reduces pressure fluctuations and further improves the accuracy and response speed of flow control. In addition, it also enhances the adaptability of the system, can better cope with changes in pressure requirements under different working conditions, and further improves the stability and reliability of the entire gas booster delivery system.

[0022] Preferably, the gas booster delivery system also includes an output mechanism, which is connected to the flow controller and is used to control the start and stop of the first gas output. The output mechanism includes a pneumatic actuator, and the second gas source is connected to the pneumatic actuator to provide power for the pneumatic actuator; a second solenoid valve is provided between the second gas source and the pneumatic actuator to control the start and stop of the pneumatic actuator.

[0023] The gas booster delivery system significantly improves the automation and safety of operation by introducing an output mechanism. The output mechanism uses a pneumatic actuator and is powered by a second gas source, ensuring precise start and stop control of the first gas output. The second solenoid valve is used to remotely control the action of the pneumatic actuator, achieving automated operation and reducing manual intervention.

[0024] Preferably, the gas pressurized delivery system also includes a safety mechanism, which includes: a safety branch, a fourth pressure gauge, an exhaust valve and a safety valve, one end of the safety branch is connected to the pipeline between the boosting mechanism and the regulating mechanism, and the other end is connected to the fourth pressure gauge, the exhaust valve is arranged on the safety pipeline, and the safety valve is arranged on the safety pipeline between the exhaust valve and the fourth pressure gauge.

[0025] The gas booster delivery system has greatly enhanced the safety of the system by adding safety mechanisms. The safety branch is equipped with a fourth pressure gauge to monitor the pressure in real time, the exhaust valve is used to quickly release pressure in an emergency, and the safety valve prevents the pressure in the system from exceeding the safety limit, forming a double protection mechanism. This design ensures that even under abnormal conditions, excessive pressure can be released in time to avoid potential safety accidents. It is particularly suitable for industrial applications that handle high pressure and flammable and explosive gases, providing reliable safety guarantees and protecting the safety of equipment and personnel.

[0026] Preferably, the gas pressurization and delivery system also includes a control mechanism, which includes a human-computer interaction unit and a processing unit. The human-computer interaction unit is connected to the processing unit, and the processing unit is electrically connected to the pressurization mechanism and the regulating mechanism respectively, for controlling the pressurization and regulation of the first gas.

[0027] Through the control of the control mechanism, the automation performance of the system is further improved and the production efficiency is improved.

[0028] Preferably, the gas pressurization and delivery system further comprises a mounting frame, and the air intake mechanism, the pressurization mechanism and the regulating mechanism are all arranged on the mounting frame.

[0029] The gas booster delivery system integrates all key components into a single mounting frame, achieving an integrated compact design, simplifying the installation process, and adapting to different process layout requirements.

[0030] In a second aspect, the present application also provides a gas pressurization delivery method, comprising:

[0031] pressurizing the first gas by a pressurizing mechanism;

[0032] The pressurized first gas is regulated by a regulating mechanism and then output;

[0033] The step of outputting the pressurized first gas after being regulated by a regulating mechanism comprises:

[0034] The flow sensor measures the flow of the pressurized first gas and transmits the measured value to the flow control unit;

[0035] A flow control unit preset with an expected first gas flow compares the received pressurized first gas flow with the expected first gas flow, and outputs a control instruction to the flow control valve according to the comparison result;

[0036] The flow control valve adjusts the output flow of the pressurized first gas according to the control instruction of the flow control unit.

[0037] The gas pressurized delivery method provided in the second aspect of the present application significantly improves the accuracy and response speed of gas flow control through a precise closed-loop control system. After the first gas source delivers the first gas to the boosting mechanism for boosting, the flow sensor measures the flow data in real time and feeds back the flow control unit. The flow control unit sends precise adjustment instructions to the flow control valve based on the comparison result between the preset expected value and the actual measured value to ensure that the output flow is stable and meets the requirements. This method not only improves the automation level and control accuracy of the system, but also enhances the ability to respond quickly to changes in downstream demand. It is suitable for industrial application scenarios with strict requirements on gas flow, and ensures the consistency of production processes and product quality.

[0038] The operating principle of the gas booster delivery system provided in this application is as follows:

[0039] 1. Intake stage

[0040] The first gas source provides the first gas (such as nitrogen) that needs to be compressed, which enters the system through a pipeline.

[0041] The gas provided by the first gas source is first adjusted to an appropriate pressure level by the first pressure regulating valve, and then enters the first gas processing component to remove impurities and moisture to ensure the purity of the gas.

[0042] The pressure of the first gas after pretreatment is monitored by a first pressure gauge, and after ensuring that it is within a set range, it enters the pressurizing mechanism.

[0043] 2. Pressurization stage

[0044] If a two-stage supercharger is used, the second gas (such as compressed air) provided by the second gas source is used as a power gas to drive the two-stage supercharger to work.

[0045] The second-stage gas is purified by the second gas processing assembly and adjusted to a pressure level suitable for driving by the second pressure regulating valve. The pressure is then monitored by the second pressure gauge to ensure that it is within the set range. Finally, the gas is controlled to flow through the first solenoid valve and enters the two-stage supercharger.

[0046] The two-stage supercharger compresses the first gas twice: the first-stage supercharger initially compresses the gas to an intermediate pressure; the second-stage supercharger further compresses it to the final required high pressure level (over 15MPa). This design improves compression efficiency and reduces fluctuations.

[0047] 3. Adjustment phase

[0048] The pressurized gas first enters the buffer, which is used to store additional high-pressure gas, reduce system pressure fluctuations, and provide stable input conditions for the flow controller.

[0049] The buffered gas is further fine-tuned through the third pressure regulating valve to adjust the gas pressure to ensure that it meets the downstream process requirements.

[0050] Next, the gas enters the flow controller, where the flow sensor measures the gas flow in real time and transmits the data to the flow control unit.

[0051] The flow control unit compares the actual flow rate with the preset expected value, and calculates the necessary adjustment instructions based on the difference and sends them to the flow control valve to adjust the opening to change the gas flow rate and ensure stable and accurate output.

[0052] The first gas output from the flow controller enters the output mechanism after being measured by the third pressure gauge.

[0053] 4. Output stage

[0054] The output mechanism includes a pneumatic actuator driven by a second gas provided by a second gas source and used to control the start and stop of the output of the first gas.

[0055] The action of the pneumatic actuator is controlled by the second solenoid valve, which receives instructions from the control mechanism to achieve remote automatic control.

[0056] 5. Security

[0057] The safety mechanism is equipped with a fourth pressure gauge to monitor the gas pressure in the key pipeline in real time, as well as an exhaust valve and a safety valve for rapid pressure relief in emergency situations to prevent system overpressure and protect the safety of equipment and personnel.

[0058] 6. Control and monitoring

[0059] The whole process is managed and monitored by the human-machine interaction unit and processing unit in the control mechanism. Users can set parameters, monitor status and obtain alarm information through the human-machine interface.

[0060] It should be understood that the technical solutions of various aspects of the present application can be independent of each other or can refer to each other, and the beneficial effects achieved by various aspects and corresponding feasible embodiments can refer to each other and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0061] The accompanying drawings are used to provide a further understanding of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the present application and do not constitute a limitation of the present application. In the accompanying drawings:

[0062] Figure 1 is a structural schematic diagram of a gas pressurization delivery system provided by an exemplary embodiment of the present application;

[0063] Figure 2 is a structural block diagram of the control relationship of a gas pressurization delivery system provided by an exemplary embodiment of the present application;

[0064] Figure 3 is a structural schematic diagram of a gas pressurization delivery system provided by an exemplary embodiment of the present application;

[0065] Figure 4 It is a flow chart of a gas pressurization and delivery method provided by an exemplary embodiment of the present application.

[0066] Reference numerals:

[0067] 1. air intake mechanism; 11. first air source; 12. second air source; 121. second solenoid valve; 13. first pressure regulating valve; 14. first gas processing assembly; 15. first pressure gauge; 16. second gas processing assembly; 17. second pressure regulating valve; 18. second pressure gauge; 19. first solenoid valve;

[0068] 2. Pressurization mechanism;

[0069] 3. regulating mechanism; 31. flow controller; 311. flow sensor; 312. flow control unit; 313. flow control valve; 32. buffer; 33. third pressure regulating valve; 34. third pressure gauge;

[0070] 4. Control mechanism; 41. Human-computer interaction unit; 42. Processing unit;

[0071] 5. Output mechanism;

[0072] 6. Safety mechanism; 61. Safety branch; 62. Fourth pressure gauge; 63. Exhaust valve; 64. Safety valve;

[0073] 7. Mounting bracket. DETAILED DESCRIPTION

[0074] Embodiments of the present application will be described in detail below, examples of which are shown in the accompanying drawings, and the components of the embodiments of the present application generally described and shown in the accompanying drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the application claimed for protection, but merely represents selected embodiments of the present application.

[0075] Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of this application.

[0076] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0077] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0078] The following will be combined Figure 1 and Figure 4 The technical solution of the present application is described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0079] Figure 1 is a schematic diagram of a gas pressurization delivery system provided by an exemplary embodiment of the present application, see Figure 1 A gas pressurization and delivery system provided in an embodiment of the present application includes: an air intake mechanism 1, a pressurization mechanism 2 and a regulating mechanism 3.

[0080] The air intake mechanism 1 comprises a first air source 11 . As the starting point of the system, the first air source 11 is responsible for providing the required compressed first gas.

[0081] In some specific examples, the first gas source 11 may be a gas supply source from a gas tank or a pipeline network to ensure continuous and stable gas input. For example, a nitrogen tank can provide high-purity nitrogen, which is suitable for application scenarios with high gas purity requirements.

[0082] In some specific examples, the first gas may be a non-flammable and non-explosive gas such as an inert gas, for example, helium, neon, argon, nitrogen, and the like.

[0083] The booster mechanism 2 is connected to the first gas source 11 through a pipeline, receives the first gas and compresses it to reach the required high pressure level. The booster mechanism is the core component for achieving gas pressure increase, ensuring that the output gas can meet the pressure requirements of downstream applications;

[0084] In some specific examples, the boosting mechanism 2 may be a single-stage piston supercharger, a two-stage or multi-stage piston supercharger, a screw compressor, or the like.

[0085] The regulating mechanism 3 includes a flow controller 31, in which a flow sensor 311, a flow control unit 312 and a flow control valve 313 are integrated.

[0086] The flow sensor 311 is installed behind the boosting mechanism 2 and connected to the pipeline of the boosting mechanism 2, and is used to measure the flow rate of the first gas after the boosting in real time. The flow sensor 311 is electrically connected to the flow control unit 312, and transmits the measurement data to the flow control unit 312. The flow sensor 311 can quickly respond to flow changes to ensure the accuracy of the measurement results.

[0087] In some specific examples, the flow controller 31 may be a thermal mass flow controller (MFC, Mass Flow Controller), a differential pressure flow controller, or the like.

[0088] In some specific examples, the flow sensor 311 may be a thermal mass flow sensor (MFM, MASS FLOWMETER), a differential pressure flow meter such as an orifice flow meter, a venturi tube, an elbow flow meter, or the like.

[0089] The flow control unit 312 is electrically connected to the flow control valve 313. The flow control unit 312 is preset with the expected first gas flow value. The flow control unit 312 can receive data from the flow sensor 311, compare the actual flow with the expected flow, calculate the necessary adjustment instructions according to the difference, and transmit the adjustment instructions to the flow control valve 313. Through such comparison and calculation, the flow control unit 312 ensures that the system always operates according to the predetermined parameters.

[0090] In some specific examples, the flow control unit 312 may adopt a PID control unit that internally contains a PID control algorithm. The PID control algorithm can provide precise feedback control so that the system can maintain a stable output even in the face of dynamic changes.

[0091] The flow control valve 313 is connected to the output end of the flow sensor, and can be operated according to the command issued by the flow control unit 312, and the flow rate of the first gas flowing out of the flow sensor 311 after the pressurization is changed by adjusting the opening to ensure that it matches the set value. The design of the flow control valve 313 takes into account the requirements of high pressure resistance and rapid response, and can maintain stable performance under various working conditions. In some specific examples, the flow control valve 313 can adopt a direct-acting flow control valve, so that it can respond to control commands within milliseconds, quickly adjust the flow rate, and ensure the immediacy of the system.

[0092] The gas boost delivery system in the embodiment of the present application adopts a local closed-loop control mechanism, that is, the flow controller can monitor and adjust the first gas flow after boosting in real time to ensure that it matches the preset expected value. This ability of instant feedback and precise adjustment allows the system to respond quickly to changes in downstream demand and maintain highly stable gas output even in the face of a complex and changing working environment. The control method of the traditional host computer system has a reaction adjustment time of about 1 second, while the reaction adjustment time of the new solution provided in this application can reach 500 milliseconds, which greatly shortens the reaction adjustment time and provides more reliable support for the production process.

[0093] Figure 2 It is a structural block diagram of the control relationship of a gas pressurization delivery system provided by an exemplary embodiment of the present application.

[0094] In some embodiments, see Figure 2 The gas pressurization and delivery system includes a control mechanism 4, which includes a human-machine interaction unit 41 and a processing unit 42. The human-machine interaction unit 41 is connected to the processing unit 42, and the processing unit 42 is electrically connected to the pressurization mechanism 2 and the regulating mechanism 3 respectively to control the pressurization and regulation of the first gas.

[0095] The human-machine interaction unit 41 serves as an interface between the user and the system, allowing the operator to input setting parameters (such as expected flow, pressure, etc.) through a touch screen, buttons or computer software, and monitor the system status in real time. It can also display alarm information, historical data records, etc., providing an intuitive operating experience.

[0096] The processing unit 42 is responsible for receiving instructions from the human-computer interaction unit 41 and exchanging information with the pressurizing mechanism 2 and the regulating mechanism 3, thereby controlling the operation of the pressurizing mechanism 2 and the regulating mechanism 3 to ensure that the pressurization and regulation process of the first gas meets the preset requirements.

[0097] In some embodiments, the processing unit 42 is connected to the flow control unit 312 inside the flow controller 31 in the regulating mechanism 3 , and the user can preset the desired gas flow in the flow control unit 312 in the regulating mechanism 3 through the human-computer interaction unit 41 .

[0098] In some embodiments, the control mechanism 4 may also be connected to the first gas source 11 and the second gas source 12 to control the release and stop of the first gas and the second gas, thereby further enhancing the automation performance of the system.

[0099] In some embodiments, the boost mechanism 2 may adopt a two-stage supercharger, and the air intake machine 1 includes not only a first gas source 11 for providing a first gas (such as nitrogen), but also a second gas source 12. The second gas source 12 is connected to the two-stage supercharger through a pipeline, and the second gas (such as compressed air) provided by the second gas source 12 is used as a power source to drive the two-stage supercharger to achieve efficient two-stage supercharging of the first gas.

[0100] When high-pressure gas exceeding 15MPa is required, the two-stage supercharger used can perform two compressions. The first-stage compression: the first-stage supercharger area receives the first gas from the first gas source 11 and initially compresses it to the intermediate pressure. This stage increases the pressure of the gas, but has not yet reached the final requirement. The second-stage compression: After the first-stage supercharger area pressurizes the first gas, it is transported to the second-stage supercharger area of ​​the two-stage supercharger and further compressed to the final required high-pressure level. This design not only improves the compression efficiency, but also better adapts to different process requirements. Through two gradual compressions, the pressure of the output gas is ensured to be more stable and the fluctuation is reduced, which is particularly suitable for application scenarios that require precise control. At the same time, the two-stage supercharger used in the boosting mechanism 2 uses compressed air as a power source, avoiding the risk of electric sparks that may be caused by direct motor drive, and is particularly suitable for working environments that handle flammable and explosive substances.

[0101] The second gas source 12 can provide a second gas as a power gas. In order to save costs, the second gas provided by the second gas source 12 is usually compressed air, but it can also be other stable gases. The second gas source 12 is connected to the two-stage supercharger through a pipeline and used as a power source to drive the supercharging process. The second gas source 12 can be a compressed air station or a dedicated air compressor to ensure that compressed air with sufficient pressure and flow is provided.

[0102] In this embodiment, the gas booster delivery system abandons the traditional host computer control system and uses a compressed second gas source to drive the booster, fundamentally eliminating the safety hazards caused by the introduction of electricity, which is particularly important for working environments that handle flammable and explosive substances. The entire system does not use a 220V power supply, further improving safety performance and ensuring the safety of operators and the production environment.

[0103] In some embodiments, the air intake mechanism 1 further integrates a first pressure regulating valve 13 , a first gas processing assembly 14 and a first pressure gauge 15 to ensure that the gas entering the boosting mechanism 2 has a stable pressure and purity.

[0104] The first pressure regulating valve 13 is connected to the first gas source 11, and is used to adjust the pressure of the first gas to a stable level suitable for subsequent processing. The gas after pressure regulation enters the first gas processing component 14, which usually includes devices such as filters and dryers to remove impurities and moisture in the gas to ensure the purity of the gas, thereby improving the working efficiency and service life of the system. Finally, the first pressure gauge 15 is set between the first gas processing component 14 and the boosting mechanism 2 to monitor the pressure of the pre-treated gas in real time. The operator can adjust the system parameters in time by observing the data of the first pressure gauge to ensure the safe operation of the system and maintain the best working state.

[0105] In this embodiment, the gas booster delivery system can ensure the stability of the input gas pressure through the first pressure regulating valve 13, providing consistent initial conditions for the boosting process; the gas is pre-treated (such as filtering and drying) through the first gas processing component 14 to ensure gas purity and improve system reliability; the pressure of the treated gas is monitored in real time through the first pressure gauge 15, which is convenient for operators to monitor and adjust, ensuring safe and efficient operation of the system.

[0106] In some embodiments, the air intake mechanism 1 further integrates a second gas processing assembly 16, a second pressure regulating valve 17, a second pressure gauge 18 and a first solenoid valve 19 to ensure that the second gas (power gas) entering the two-stage supercharger has a stable pressure and high quality.

[0107] The second gas processing component 16 is connected to the second gas source 12 and is used to purify the input power gas, remove impurities and moisture therein, and ensure the purity of the gas. For example, the component can include a high-efficiency filter and dryer to prevent any particles or moisture from entering the system, thereby protecting the supercharger and other key components from contamination and damage. The treated clean second gas then passes through the second pressure regulating valve 17, which adjusts the gas pressure to a level suitable for driving the two-stage supercharger, providing consistent working conditions for the two-stage supercharger. The second pressure gauge 18 is arranged between the second pressure regulating valve 17 and the first solenoid valve 19 to monitor the pressure of the second gas after pressure regulation in real time, so that the operator can understand and adjust the operating status of the system at any time to ensure safety and stability.

[0108] The first solenoid valve 19 is arranged between the second pressure regulating valve 17 and the two-stage supercharger. The first solenoid valve 19 is electrically connected to the control mechanism 4 to receive the control instruction of the control mechanism 4 to quickly open and close, control the flow of the power gas, and realize accurate control of the supercharging process. This design not only improves the response speed and control accuracy of the system, but also enhances the overall safety and reliability.

[0109] By introducing these components, the air intake mechanism 1 can maintain efficient and stable operation in a complex and changeable working environment. Especially for application scenarios that require high precision and high reliability, such as the addition of nitrogen during the foaming process of polyurethane sheets, this optimized design significantly improves the performance of the system and ensures the consistency of the production process and the stability of product quality.

[0110] In some embodiments, the regulating mechanism 3 further integrates a buffer 32. The buffer 32 is disposed between the boosting mechanism 2 and the flow controller 31, and is connected to both of them respectively, to ensure that the system can operate more stably and efficiently.

[0111] The buffer 32 can store a certain amount of the pressurized first gas in a short period of time, thereby reducing system pressure fluctuations and providing a more stable gas output. For example, when downstream demand suddenly increases, the buffer 32 can immediately release the stored gas, quickly replenish the flow, and avoid the pressure drop caused by the failure of the boosting mechanism 2 to respond immediately. In addition, the presence of the buffer 32 can also reduce the frequent startup of the boosting mechanism 2, extend its service life, and improve the response speed and control accuracy of the entire system. In this way, the buffer 32 not only enhances the stability of the system, but also provides a more stable working condition for the flow controller 31, ensuring that it can accurately measure and adjust the gas flow. This design is particularly suitable for industrial application scenarios that require high precision and high stability, such as the addition of nitrogen in the foaming process of polyurethane sheets, which significantly improves the consistency of the production process and the reliability of product quality.

[0112] In some embodiments, the regulating mechanism 3 is further integrated with a third pressure regulating valve 33. The third pressure regulating valve 33 is disposed between the buffer 32 and the flow controller 31 and is connected to both of them respectively, so as to accurately adjust the gas pressure according to the specific process requirements of the customer.

[0113] When the first gas flows to the flow controller 31 after being pressurized by the buffer 32, the third pressure regulating valve 33 plays a key role in finely adjusting the gas pressure according to the customer's process requirements. For example, in the foaming process of polyurethane sheets, different users may require different nitrogen pressures to optimize the foaming effect; the third pressure regulating valve 33 can flexibly respond to these personalized needs and ensure that the output gas pressure always remains within the range specified by the user. This design enhances the overall adaptability and flexibility of the system, allowing the same set of equipment to meet the pressure requirements under a variety of process conditions.

[0114] In some embodiments, the gas pressurization delivery system is further integrated with an output mechanism 5, which is connected to the flow controller 31 for accurately controlling the start and stop of the first gas output.

[0115] In some embodiments, the output mechanism 5 uses a pneumatic actuator, and the second air source 12 provides power for the pneumatic actuator. A second solenoid valve 121 is provided between the second air source 12 and the pneumatic actuator, and the second solenoid valve 121 is electrically connected to the control mechanism 4, and can receive control instructions from the control mechanism 4 to remotely control the action of the pneumatic actuator, ensuring that it can be quickly started and stopped as needed.

[0116] When the system needs to start gas output, the control mechanism 4 sends a signal to the second solenoid valve 121 to open it, thereby allowing the second gas (which can be compressed air) provided by the second gas source 12 to drive the pneumatic actuator to operate and open the gas output path. On the contrary, when the gas output needs to be stopped, the control mechanism 4 sends a closing signal, the second solenoid valve 121 cuts off the compressed air supply, and the pneumatic actuator is closed to stop the gas flow. This design not only improves the response speed and control accuracy of the system, but also reduces the dependence on electrical components and enhances the safety and reliability of the system. Especially for application scenarios involving the handling of flammable and explosive gases, the use of pneumatic actuators can avoid the risk of electric sparks and provide a higher level of safety.

[0117] In some embodiments, the regulating mechanism 3 is further integrated with a third pressure gauge 34, which is disposed between the flow controller 31 and the output mechanism 5, and is used to measure the first gas pressure before output after the flow is regulated by the flow controller.

[0118] In some embodiments, the gas booster delivery system is further integrated with a safety mechanism 6 to ensure safe operation of the system and prevent potential high pressure risks. The safety mechanism 6 is composed of a safety branch 61, a fourth pressure gauge 62, an exhaust valve 63 and a safety valve 64, forming a complete set of safety protection mechanisms.

[0119] One end of the safety branch 61 is connected to the pipeline between the boost mechanism 2 and the regulating mechanism 3, and the other end is connected to the fourth pressure gauge 62, through which the gas pressure in this critical pipeline is monitored in real time. For example, the fourth pressure gauge 62 can be a high-precision digital pressure gauge, which provides accurate pressure readings to help operators understand the system status in a timely manner. The exhaust valve 63 is arranged on the safety branch 61, which can quickly release excessive pressure in an emergency to prevent the system from overpressure. The safety valve 64 is located between the exhaust valve 63 and the fourth pressure gauge 62. As the last line of defense, it automatically opens when the pressure exceeds the set limit, quickly releases pressure, and protects the safety of the system and personnel. This design not only improves the safety of the system, but also enhances the ability to respond to emergencies, ensuring that the pressure can be effectively controlled even under abnormal conditions to avoid potential safety accidents.

[0120] Figure 3 It is a schematic structural diagram of a gas pressurization delivery system provided by an exemplary embodiment of the present application.

[0121] In some embodiments, see Figure 3 The gas pressurizing and conveying system further comprises a mounting frame 7 , on which the air intake mechanism 1 , the pressurizing mechanism 2 , the regulating mechanism 3 and the output mechanism 5 are all arranged.

[0122] In some embodiments, the control mechanism 4 and the safety mechanism 6 may also be disposed on the mounting frame 7 .

[0123] In this embodiment, the gas pressurization and delivery system integrates all key components into a single mounting frame 7, achieving an integrated and compact design, simplifying the installation process, and adapting to different process layout requirements.

[0124] Figure 4 It is a flow chart of a gas pressurization and delivery method provided by an exemplary embodiment of the present application.

[0125] In a second aspect, the present application provides a method for pressurized gas delivery, which ensures that the first gas can be stably and accurately output after being pressurized. Figure 4 , the method comprising:

[0126] S100 , pressurizing the first gas through the pressurizing mechanism 2 .

[0127] In some embodiments, the booster mechanism 2 may be a two-stage booster, which gradually compresses the gas to the required high pressure level to ensure that the pressure of the output gas meets the process requirements. For example, in the foaming process of polyurethane sheets, nitrogen needs to be compressed to a pressure of more than 15 MPa.

[0128] In some embodiments, the first gas may be a non-flammable and explosive gas such as an inert gas, for example, helium, neon, argon, nitrogen, etc.

[0129] In some embodiments, step S100 further includes:

[0130] S101 . A user inputs a desired first gas pressure value through the human-computer interaction unit 41 , and transmits a signal to a processing unit.

[0131] In some embodiments, the user may input via a touch screen or computer interface.

[0132] S102: The processing unit 42 processes the received signal and issues a boost command to the two-stage supercharger.

[0133] In some embodiments, the processing unit 42 may be a PLC (Programmable Logic Controller) or an embedded controller, which has a strong data processing capability and a real-time response speed. It receives a digital signal from the human-computer interaction unit and calculates the necessary boost instructions according to a preset algorithm.

[0134] S103, the first gas source 11 outputs the first gas into the two-stage supercharger, and the second gas source 12 outputs the second gas as the driving gas into the two-stage supercharger to pressurize the first gas to a required pressure.

[0135] In some embodiments, the first gas provided in the first gas source 11 first adjusts the pressure to a moderate level through the first pressure regulating valve 13, and then enters the first gas processing component 14 to remove impurities and moisture to ensure the purity of the gas; the pressure of the treated first gas is monitored by the first pressure gauge 15 to ensure that it is within the set range, and then enters the two-stage booster.

[0136] In some embodiments, the second gas provided by the second gas source 12 is purified by a second gas processing component 16 to remove impurities and moisture; the treated second gas is adjusted to a pressure level suitable for driving the two-stage supercharger by a second pressure regulating valve 17, and the pressure is monitored in real time by a second pressure gauge 18; the second gas finally enters the two-stage supercharger through a first solenoid valve 19, drives the piston to move, and gradually compresses the first gas (such as nitrogen) to the required high pressure level.

[0137] In some embodiments, after step S103 , the following further includes: S104 , the safety mechanism 6 performs a safety check on the first gas pressurized by the pressurizing mechanism 2 .

[0138] In some embodiments, the fourth pressure gauge 62 is connected to the safety branch 61 and further connected to the pipeline at the outlet of the boosting mechanism 2 to detect the pressure value after boosting.

[0139] In some embodiments, an exhaust valve 63 is provided on the safety branch 61 to quickly release excessive pressure in an emergency to prevent system overpressure.

[0140] In some embodiments, the safety valve 64 is disposed between the exhaust valve 63 and the fourth pressure gauge 62 as the last line of defense. When the pressure is detected to exceed the set limit, the safety valve 64 automatically opens and releases the pressure quickly, ensuring that the system can automatically take measures in extreme cases to avoid potential safety accidents.

[0141] S200, the pressurized first gas is regulated by the regulating mechanism 3 and then outputted.

[0142] In some embodiments, step S200 further includes:

[0143] S201 , the user inputs a desired first gas flow value through the control mechanism 4 , and presets it to the flow control unit 312 .

[0144] In some embodiments, the user enters the desired first gas flow value, such as 50 L / min, on the computer interface and confirms the setting; after the input is completed, the system generates a digital signal containing the flow setting value and transmits it to the flow control unit 312 through a communication protocol (such as Profi net fieldbus, Modbus TCP / IP).

[0145] S202 , the pressurized first gas enters the buffer 32 , and after coming out, it is pressure-regulated by the third pressure regulating valve 33 and then enters the flow controller 31 .

[0146] In some embodiments, after the pressurized first gas flows out of the dual-stage supercharger, it first enters the buffer 32. The buffer 32 can store a certain amount of high-pressure gas in a short period of time, reduce system pressure fluctuations, and provide a more stable gas output.

[0147] In some embodiments, the first gas after passing through the buffer 32 continues to flow to the third pressure regulating valve 33. The user can further fine-tune the gas pressure through the third pressure regulating valve 33 according to the pressure required by the downstream process to ensure that it remains within the ideal range.

[0148] S203 , the flow sensor 311 measures the flow of the pressurized first gas in real time, and transmits the measured value to the flow control unit 312 .

[0149] In some embodiments, a thermal mass flow sensor (MFM) may be used. This high-precision flow sensor can provide reliable flow data under various working conditions to ensure the accuracy of the measurement results.

[0150] In some embodiments, the flow sensor 311 monitors the flow of the pressurized first gas in real time, and transmits the measured value to the flow control unit 312 via analog signals or digital communications (such as Profi net fieldbus, 4-20mA, RS485, etc.).

[0151] S204 , the flow control unit 312 receives data from the flow sensor 311 , and compares it with the preset expected first gas flow rate, calculates necessary adjustment instructions according to the difference between the actual flow rate and the expected flow rate, and transmits the necessary adjustment instructions to the flow control valve 313 .

[0152] In some embodiments, the flow control unit 312 may be a PLC or an embedded controller.

[0153] In some embodiments, after the flow control unit 312 receives the real-time flow data from the flow sensor 311, it immediately starts the internal algorithm to calculate the difference between the current flow and the preset expected flow; calculates the necessary adjustment instructions based on the difference, and sends a control signal to the flow control valve through the I / O interface.

[0154] In some embodiments, the flow control unit 312 can also record historical data and generate trend graphs to help operators better understand the system operation status.

[0155] S205 , the flow control valve 313 operates according to the instruction issued by the flow control unit 312 , and changes the flow rate of the pressurized first gas by adjusting the opening to ensure that it matches the set value.

[0156] In some embodiments, the flow control valve adopts a direct-acting flow control valve, which can respond to control instructions within milliseconds and quickly adjust the flow to ensure the immediacy and stability of the system.

[0157] In some embodiments, step S200 further includes:

[0158] Step S300: The pneumatic actuator controls the output of the pressurized first gas under the drive of the second gas.

[0159] The gas boosting and delivery method provided in the present application significantly improves the accuracy and response speed of gas flow control through a precise closed-loop control system. After the first gas source delivers the first gas to the boosting mechanism for boosting, the flow sensor measures and feeds back the flow data to the control unit in real time. The control unit sends precise adjustment instructions to the flow control valve based on the comparison result between the preset expected value and the actual measured value to ensure that the output flow is stable and meets the requirements. This method not only improves the automation level and control accuracy of the system, but also enhances the ability to respond quickly to changes in downstream demand. It is suitable for industrial application scenarios with strict requirements on gas flow, and ensures the consistency of production processes and product quality.

[0160] It should be noted that the technical solutions in the various embodiments of the present application can be combined with each other, but the basis for the mutual combination is that it can be implemented by ordinary technicians in the field; when the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist, that is, it does not belong to the scope of protection of this application.

[0161] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A gas pressurization delivery system, characterized in that: include: The air intake mechanism comprises a first air source for providing a first gas; A pressurizing mechanism, connected to the air intake mechanism, and used to pressurize the first gas; The regulating mechanism includes a flow controller, wherein a flow sensor, a flow control unit and a flow control valve are integrated inside the flow controller, wherein: The air intake mechanism, the supercharging mechanism and the regulating mechanism are connected in sequence and integratedly mounted on the mounting frame; The flow sensor is connected to the pressurizing mechanism and electrically connected to the flow control unit, and is used to measure the flow rate of the first gas after pressurization and transmit the measured value to the flow control unit; The flow control unit is electrically connected to the flow control valve, and the flow control unit is preset with an expected first gas flow rate, and is used to compare the received pressurized first gas flow rate with the expected first gas flow rate, and transmit a control instruction to the flow control valve according to the comparison result; The flow control valve is used to adjust the output flow of the pressurized first gas according to the control instruction of the flow control unit.

2. The gas pressurization delivery system according to claim 1, characterized in that: The air intake mechanism also includes a second gas source capable of providing a second gas. The boost mechanism adopts a two-stage booster, which is connected to the first gas source and the second gas source respectively, so that the first gas is boosted in two stages using the second gas as a driving gas.

3. The gas pressurization delivery system according to claim 1, characterized in that: The air intake mechanism also includes a first pressure regulating valve, a first gas processing component and a first pressure gauge, the first pressure regulating valve is connected to the first gas source and the first gas processing component respectively, the first gas processing component is connected to the boosting mechanism, and the first pressure gauge is arranged between the first gas processing component and the boosting mechanism.

4. The gas pressurization delivery system according to claim 2, characterized in that: The air intake mechanism also includes a second gas processing component, a second pressure regulating valve, a second pressure gauge and a first solenoid valve. The second gas processing component is connected to the second gas source, the second pressure regulating valve is connected to the second gas processing component, the first solenoid valve is respectively connected to the second pressure regulating valve and the two-stage supercharger, and the second pressure gauge is arranged between the second pressure regulating valve and the first solenoid valve.

5. The gas pressurization delivery system according to claim 1, characterized in that: The regulating mechanism further includes a buffer, which is arranged between the boosting mechanism and the flow controller and is connected to the boosting mechanism and the flow controller respectively.

6. The gas pressurization delivery system according to claim 5, characterized in that: The regulating mechanism further includes a third pressure regulating valve, which is disposed between the buffer and the flow controller and is connected to the buffer and the flow controller respectively.

7. The gas pressurization delivery system according to claim 2, characterized in that: It also includes an output mechanism, which is connected to the flow controller and is used to control the start and stop of the first gas output; Preferably, the output mechanism includes a pneumatic actuator, and the second air source is connected to the pneumatic actuator to provide power for the pneumatic actuator; a second solenoid valve is provided between the second air source and the pneumatic actuator to control the start and stop of the pneumatic actuator.

8. The gas pressurization delivery system according to claim 1, characterized in that: It also includes a safety mechanism, which includes: a safety branch, a fourth pressure gauge, an exhaust valve and a safety valve. One end of the safety branch is connected to the pipeline between the boosting mechanism and the regulating mechanism, and the other end is connected to the fourth pressure gauge. The exhaust valve is arranged on the safety branch, and the safety valve is arranged on the safety branch between the exhaust valve and the fourth pressure gauge.

9. The gas pressurization delivery system according to any one of claims 1 to 8, characterized in that: It also includes a control mechanism, which includes a human-machine interaction unit and a processing unit. The human-machine interaction unit is connected to the processing unit, and the processing unit is electrically connected to the pressurization mechanism and the regulating mechanism respectively, for controlling the pressurization and regulation of the first gas.

10. A gas pressurized delivery method, characterized in that: include: pressurizing the first gas by a pressurizing mechanism; The pressurized first gas is regulated by a regulating mechanism and then output; The step of outputting the pressurized first gas after being regulated by a regulating mechanism comprises: The flow sensor measures the flow of the pressurized first gas and transmits the measured value to the flow control unit; A flow control unit preset with an expected first gas flow compares the received pressurized first gas flow with the expected first gas flow, and outputs a control instruction to the flow control valve according to the comparison result; The flow control valve adjusts the output flow of the pressurized first gas according to the control instruction of the flow control unit.

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