Energy coupling type environmental gas phase transduction method

Abstract

The present application relates to the field of gas phase chemistry and environmental control technology, and specifically to an energy coupling type environmental gas phase transduction method, which sequentially generates active oxygen species by exciting oxygen and water molecules in the airflow through first-stage energy injection, realizes instant oxidation inactivation of pathogens and degradation of organic matter in aerosol, and after completing particle purification through a particle and aerosol removal module, generates active nitrogen species through second-stage energy injection, completes reduction and neutralization of residual active species and releases reaction heat energy, finally realizes reaction energy recycling and output gas temperature and humidity precise regulation through an energy recovery and temperature and humidity regulation unit, realizes self-adaptive regulation of operating conditions based on redox potential and temperature and humidity parameter feedback and supporting intelligent closed-loop control, and has the advantages of significant energy-saving effect, active epidemic prevention, environmental friendliness and wide application range, and can be widely applied to multiple fields such as aerospace, medical treatment and building heating.

Description

Technical Field

[0001] This invention relates to the fields of gas phase chemistry and environmental control technology, specifically an energy-coupled environmental gas phase transduction method. Background Technology

[0002] In enclosed or semi-enclosed environments such as spacecraft cabins, medical isolation cabins, and building HVAC systems, the aerosol particle size in the air is usually less than 0.3μm. Traditional air purification equipment mostly adopts a passive protection method that combines filter filtration, ultraviolet irradiation, and air duct circulation. In this type of method, conventional filtration and electrostatic adsorption technologies are difficult to completely remove aerosols in this particle size range. Ultraviolet irradiation also has a significant shadowing effect, which cannot achieve efficient inactivation of pathogens in aerosols. At the same time, the heat energy and by-product ozone generated during system operation are often directly emitted or wasted, resulting in extremely low energy utilization.

[0003] Existing air environment control systems generally suffer from low inactivation efficiency, slow system response, and serious energy waste in terms of aerosol pathogen inactivation, epidemic prevention, and energy recovery. Traditional passive protective air purification equipment relies solely on filter filtration or ultraviolet irradiation for air treatment, resulting in slow pathogen inactivation, uneven energy distribution, and a lack of active control capabilities. It cannot dynamically adjust operating conditions based on pathogen concentration in the environment. Furthermore, the equipment has a complex overall structure, simple operating logic, and lacks systematic energy-saving design, leading to significant energy waste. It cannot integrate and coordinate pathogen inactivation, particle removal, temperature and humidity control, and energy recovery in a cohesive manner, making it difficult to simultaneously meet the multiple requirements of active epidemic prevention in closed environments, stable control of environmental parameters, and energy-saving system operation. Therefore, in response to the above situation, there is an urgent need to develop an energy-coupled environmental gas phase transduction method to overcome the shortcomings in current practical applications. Summary of the Invention

[0004] The purpose of this invention is to provide an energy-coupled environmental gas phase transduction method to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] An energy-coupled environmental gas phase transduction method includes the following steps executed in series:

[0007] S1 Oxidation and Inactivation Step: Apply first energy to the airflow to be treated to stimulate oxygen and water molecules in the airflow to generate active oxygen species, thereby achieving the oxidation and inactivation of pathogens in aerosols in the airflow and the degradation of organic matter through the active oxygen species;

[0008] S2 Particle Removal Step: The airflow treated in step S1 is subjected to particulate and aerosol removal treatment.

[0009] S3 Reduction Equilibrium Step: Apply a second energy to the gas flow after the S2 step to stimulate the nitrogen and oxygen in the gas flow to generate active nitrogen species. The active nitrogen species then undergo a reduction and neutralization reaction with the residual active oxygen species in the gas flow to generate stable and harmless gaseous products, while releasing reaction energy.

[0010] S4 Energy Recovery and Temperature and Humidity Control Step: The temperature and humidity of the airflow treated by the S3 step are precisely controlled, and the energy released by the reduction and neutralization reaction in the S3 step is recovered and reused.

[0011] As a further aspect of the present invention: in step S1, a catalyst is placed in the reaction region where the first energy is applied. The catalyst is fixed to the inner wall of the reaction chamber, the surface of the electrode gap, or filled in the gas flow channel to form an energy-catalytic synergistic reaction zone.

[0012] And / or, in step S1, moisture is introduced into the airflow to regulate the relative humidity of the airflow, thereby promoting the generation of free radicals and improving the efficiency of oxidation and inactivation.

[0013] As a further aspect of the present invention: in step S2, particles and aerosols in the airflow are removed by at least one of high-voltage electrostatic dust collection, cyclone separation or dust collection bag.

[0014] After the S1 step, the particles in the airflow are charged by energy deposition, forming relatively oxidizing aerosol clusters, which are then removed to prevent pathogens from multiplying on the particles and to prevent secondary pollution to the surrounding environment.

[0015] As a further aspect of the present invention: in step S3, a catalyst is placed in the reaction region where the second energy is applied. The catalyst is fixed to the inner wall of the reaction chamber, the surface of the electrode gap, or filled in the gas flow channel to form an energy-catalytic synergistic reaction zone.

[0016] And / or, in step S3, moisture is introduced into the airflow to regulate the relative humidity of the airflow, thereby increasing the neutralization reaction rate between reactive nitrogen species and residual reactive oxygen species.

[0017] As a further aspect of the present invention: in step S4, the dual recovery of sensible heat and latent heat between the intake air to be treated and the system exhaust air is achieved through a total heat exchange structure.

[0018] Meanwhile, the energy released by the recovered reduction and neutralization reaction is used for at least one of the following purposes: heating the airflow, driving the refrigeration cycle, and driving humidity control.

[0019] The condensate generated during the temperature and humidity control process is recovered and used for water supply in steps S1 and / or S3.

[0020] As a further aspect of the present invention, the method further includes a closed-loop control step:

[0021] The system collects real-time operating parameters such as the oxidation-reduction potential, temperature, and relative humidity of the airflow. Based on the collected parameters, it adaptively adjusts the input intensity of the first and second energies, as well as the operating conditions for temperature and humidity control, to achieve adaptive adjustment of the system's operating conditions.

[0022] As a further aspect of the present invention: the closed-loop control adopts any one of MPC-PID, fuzzy-PID, adaptive control algorithm, and model predictive control algorithm;

[0023] When the redox potential of the airflow is detected to be higher than the target value, the input ratio of the first energy and the second energy is automatically adjusted.

[0024] When the temperature or relative humidity of the airflow deviates from the set range, the operating power of the temperature and humidity control module is automatically adjusted to maintain the stability of the temperature and humidity of the output airflow.

[0025] As a further aspect of the present invention, the method further includes a safety protection control step:

[0026] The ozone and nitrogen dioxide concentrations of the treated airflow are monitored in real time, and the outlet ozone concentration is controlled to be no higher than 0.05 ppm and the nitrogen dioxide concentration to be no higher than 0.02 ppm. When the concentration exceeds the standard, the input ratio of the first energy and the second energy is automatically adjusted to accelerate the reduction and neutralization reaction.

[0027] As a further aspect of the present invention: the first energy in step S1 is any combination of ultraviolet light, high-energy particle beam, high-voltage ionization, positive electric field discharge, microwave, photocatalysis, and plasma.

[0028] As a further aspect of the present invention: the second energy in step S3 is any combination of ultraviolet light, high-energy particle beam, high-voltage ionization, negative electric field discharge, microwave, photocatalysis, and plasma.

[0029] Compared with the prior art, the beneficial effects of the present invention are:

[0030] This invention utilizes an energy-coupled environmental gas phase transduction method to generate reactive oxygen species (ROS) through energy injection in reaction chamber one and reactive nitrogen species (RNS) through energy injection in reaction chamber two during airflow. By using these active free radicals in the gas phase, viruses and bacteria in aerosols are instantly inactivated, while simultaneously degrading VOCs and other organic matter. This removes particles and aerosols from the airflow, overcoming the technical bottlenecks of slow inactivation rates and limitations imposed by shadow effects in traditional passive equipment, thus achieving proactive epidemic prevention and disinfection.

[0031] This invention, through an energy recovery and temperature and humidity control unit, can recover and reuse the energy released by the reaction of reactive nitrogen species RNS and residual reactive oxygen species ROS. At the same time, the intake and exhaust gases achieve dual recovery of sensible heat and latent heat through a total heat exchange structure, which can effectively reduce the load on the air conditioning unit and realize the closed-loop energy-saving operation of the system.

[0032] This invention employs a closed-loop control algorithm, which can determine the oxidation-reduction potential of the airflow. The system provides real-time feedback of temperature and humidity signals and adaptively adjusts the energy input intensity of energy injection reaction chamber one and energy injection reaction chamber two. It can dynamically adjust the operating conditions according to the concentration of pathogens in the environment and airflow parameters, which greatly improves the system's response speed and operational stability.

[0033] This invention uses a two-stage oxidation-reduction reaction to convert residual active species into stable and harmless substances such as oxygen, nitrogen, and water. It can control the ozone concentration at the gas outlet to be no higher than 0.05 ppm and the nitrogen dioxide concentration to be no higher than 0.02 ppm, which fully meets the safety limit requirements and will not produce secondary pollution.

[0034] The method of this invention is adaptable to four airflow organization modes: positive pressure unidirectional air supply, negative pressure unidirectional exhaust, partial return air circulation, and total heat recovery. It can be widely used in various fields such as spacecraft cabins, biosafety facilities (hospitals, operating rooms, isolation wards, and biochemical laboratories), building HVAC, public transportation, land, sea and air logistics chains, and border control, and has strong versatility and promotional value. Attached Figure Description

[0035] Figure 1 This is a flowchart of the energy-coupled environmental gas phase transduction method in an embodiment of the present invention.

[0036] Figure 2 This is a schematic diagram of the positive pressure unidirectional gas supply system in Embodiment 1 of the present invention.

[0037] Figure 3 This is a schematic diagram of the negative pressure unidirectional exhaust system in Embodiment 2 of the present invention.

[0038] Figure 4 This is a schematic diagram of part of the return gas circulation system structure in Embodiment 3 of the present invention.

[0039] Figure 5 This is a schematic diagram of the total heat recovery system in Embodiment 4 of the present invention.

[0040] In the diagram: 1-Energy injection reaction chamber one, 2-Particle and aerosol removal module, 3-Energy injection reaction chamber two, 4-Energy recovery and temperature and humidity control unit, 101-Electric damper, 102-Flow rate and pressure control module, 103-Mixing tube. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0043] Please see Figures 1-5 The present invention provides an energy-coupled environmental gas phase transduction method, which simultaneously achieves aerosol pathogen inactivation, organic matter degradation, particle removal, temperature and humidity control and energy recovery during air flow through a unified energy-chemistry-control method chain, forming an active epidemic prevention, energy regeneration and intelligent closed-loop gas phase chemical treatment system.

[0044] The core processing flow of this method includes four sequentially connected functional steps: S1 first-stage energy injection and oxidation inactivation step, S2 particulate and aerosol removal step, S3 second-stage energy injection and reduction equilibrium step, and S4 energy recovery and temperature and humidity control step.

[0045] The functional modules corresponding to the four steps can be configured as positive pressure, negative pressure, partial reflux, or total heat recovery systems according to different applications. Their core reactions and energy coupling chains remain consistent, as detailed below:

[0046] S1 First-stage energy injection and oxidative inactivation steps

[0047] In this step, the gas flow to be treated enters the energy injection reaction chamber 1 (oxidation reaction section), and a first energy E1 is applied to the incoming gas flow. The first energy E1 can be any combination of ultraviolet light, high-energy particle beam, high-voltage ionization (positive high voltage, AC high voltage), positive electric field discharge, microwave, photocatalysis, and plasma to excite O2 and H2O in the gas flow and generate reactive oxygen species (ROS). The ROS include O・, OH・, O3, H2O2, etc.

[0048] To further improve the efficiency of gas-phase free radical generation and reaction selectivity, catalysts, such as MAX phase synergistic catalysts, can be placed in the energy injection reaction chamber 1 and fixed on the inner wall of the reaction chamber, the surface of the electrode gaps, or filled in the gas flow channels to form a catalytically active surface layer or a porous catalytic filling zone, making the whole a "energy-catalytic synergistic reaction zone". Through the synergy of energy excitation and surface catalysis, this zone can improve the generation rate and reaction sufficiency of ROS, thereby improving the pathogen inactivation rate and the degradation efficiency of organic pollutants while reducing energy input.

[0049] The main reaction equation for this step is as follows:

[0050] ;

[0051] In the initial stage of the reaction or when the pollution load is high, the system can automatically introduce a trace amount of water H1 (the water H1 can be supplied by ultrasonic atomization, electrolysis of water vapor or micro-spraying) to control the relative humidity of the airflow at 55-65% to promote the generation of OH・ and improve the oxidation and inactivation rate.

[0052] Through the above steps, the generated highly reactive oxygen free radicals can rapidly destroy the lipid membrane and nucleic acid structure of pathogens, achieving immediate oxidative inactivation of viruses and bacteria in aerosols during the gas phase reaction. At the same time, it completes the degradation of VOCs and other organic matter in the airflow, realizing the activation treatment of the airflow. This solves the technical problems of slow inactivation rate and inability to achieve immediate disinfection in traditional passive air purification equipment.

[0053] S2 particulate and aerosol removal steps

[0054] The airflow processed in step S1 enters the particulate and aerosol removal module 2 to complete the removal of particulates and aerosols from the airflow. The specific process is as follows:

[0055] (1) Through the energy deposition of step S1, some particles in the gas flow become charged and form relatively oxidizing aerosol clusters;

[0056] (2) The airflow passes through the high-voltage electrostatic dust collection electrode and / or cyclone separator / or dust collection bag device to remove particles with a diameter ≥0.3μm;

[0057] (3) The treated clean airflow flows into the reaction zone corresponding to step S3 in a stable and uniform manner.

[0058] Through the above steps, not only can particulates and aerosols in the airflow be physically removed, but also, because the removed particulates are oxidizing, pathogens can be prevented from multiplying on the particulates, thus avoiding secondary pollution of the surrounding environment. Removing particulates and aerosols from the airflow ensures the reaction stability of the subsequent reduction equilibrium steps, solving the technical problems of traditional filtration technology, which is difficult to completely remove aerosols <0.3μm and is prone to secondary pollution.

[0059] S3 Second-Level Energy Injection and Restoration Balance Steps

[0060] The gas stream treated in step S2 enters energy injection reaction chamber 2 (reduction equilibrium section), where a second energy E2 is applied. This second energy E2 can be any combination of ultraviolet light, high-energy particle beam, high-voltage ionization (negative high voltage, AC high voltage), negative electric field discharge, microwave, photocatalysis, and plasma to excite N2 and O2 in the gas stream to generate reactive nitrogen species RNS, which include NO・, NO2・, and ONOO.- The generated RNS reacts with the residual ROS in the airflow in a reduction and neutralization reaction to generate stable O2, N2 and H2O, while releasing energy Q3.

[0061] To further improve the efficiency of gas-phase free radical generation and reaction selectivity, catalysts, such as MAX phase synergistic catalysts, can be placed in the energy injection reaction chamber 23 and fixed on the inner wall of the reaction chamber, the surface of the electrode gap, or filled in the gas flow channel to form a catalytically active surface layer or a porous catalytic filling zone, making the whole a "energy-catalytic synergistic reaction zone". This zone, through the synergy of energy excitation and surface catalysis, can improve the generation rate and reaction sufficiency of RNS, thereby accelerating the reduction and neutralization efficiency of residual active species while reducing energy input.

[0062] The main reaction equation for this step is as follows:

[0063] ;

[0064] In this step, moisture H1 can be introduced briefly (the moisture H1 can be supplied through ultrasonic atomization, electrolysis of water vapor, or micro-spraying) to control the relative humidity of the airflow at 60-65%, thereby promoting ONOO. - The generation of [something] accelerates the neutralization reaction rate of ROS and RNS; the energy Q3 released by the reaction is directed to the energy recovery module corresponding to step S4.

[0065] By generating RNS and conducting a directed reaction with residual ROS, the reduction and neutralization of active species are achieved, avoiding the escape of byproducts such as ozone and ensuring the chemical stability and environmental friendliness of the output gas. At the same time, the energy released by the reaction can be recovered and reused, solving the technical problems of ozone byproducts causing damage to surrounding plants and animals and the inability to recover gas phase reaction energy in traditional air treatment technologies.

[0066] S4 Energy Recovery and Temperature and Humidity Control Steps

[0067] The airflow processed in step S3 enters the energy recovery and temperature and humidity control unit 4. Utilizing the energy Q3 released during the reaction in step S3, the temperature and humidity of the output airflow are regulated and energy is recovered in a closed loop. The energy recovery and temperature and humidity control unit 4 includes a temperature control module, a humidity control module, and a total heat exchange and energy reuse module. The specific implementation method is as follows:

[0068] (a) Temperature control module

[0069] The temperature control module includes two subsystems: refrigeration and heating. The specific control logic is as follows:

[0070] When the airflow temperature T is greater than the set upper temperature limit (e.g., 26°C), the TEC cooling or refrigerant circuit is activated to cool the airflow.

[0071] When the airflow temperature T is less than the lower limit of the set temperature (e.g., 22°C), the PTC heater or reheater is activated to heat the airflow.

[0072] The temperature control module has a temperature control accuracy of ±1℃.

[0073] (b) Humidity control module

[0074] The humidity control module includes humidification and dehumidification structures, and the specific control logic is as follows:

[0075] When the relative humidity (RH) of the airflow is less than 45%, the ultrasonic humidifier is activated to humidify the airflow.

[0076] When the relative humidity (RH) of the airflow is greater than 70%, turn on the condensation dehumidification or molecular sieve dehumidification device to dehumidify the airflow.

[0077] The humidity control module maintains the relative humidity (RH) of the output airflow within the range of 50-65%. The condensate generated during the process can be recycled and reused as the water (H1) required in steps S1 and S3.

[0078] (c) Total heat exchange and energy reuse module

[0079] The intake air to be treated and the exhaust air of the system exchange heat through a total heat exchange core to achieve dual recovery of sensible heat and latent heat; at the same time, the energy Q3 released in the reaction in step S3 is recovered and used to heat the airflow or drive the refrigeration cycle (the recovery and utilization of the energy Q3 can be achieved through heat conduction, thermoelectric modules, heat pump cycles or phase change energy storage materials), thus realizing the regeneration and utilization of energy.

[0080] By recovering and utilizing the energy released from the gas-phase reaction and the residual energy in the exhaust air, the system achieves closed-loop energy-saving operation, reducing the load on the air conditioning unit; at the same time, it achieves precise control of the temperature and humidity of the output airflow, ensuring the comfort of the target environment, and solving the technical problems of serious energy waste and the inability to coordinate temperature and humidity control with epidemic prevention functions in traditional air handling systems.

[0081] In one embodiment of the present invention, to implement the above-described energy-coupled environmental gas phase transduction method, the accompanying air treatment system includes:

[0082] Energy input module, energy injection reaction chamber 1, particulate and aerosol removal module 2, energy injection reaction chamber 2, energy recovery and temperature and humidity control unit, and sensing and control module;

[0083] The energy input module is connected to energy injection reaction chamber 1 and energy injection reaction chamber 3 respectively, and is used to provide the first energy E1 and the second energy E2.

[0084] The energy injection reaction chamber 1, the particulate and aerosol removal module 2, the energy injection reaction chamber 2, and the energy recovery and temperature and humidity control unit 4 are connected in series along the airflow direction (the energy injection reaction chamber 1 and the energy injection reaction chamber 2 can inject energy in any form, such as needle-plate, wire-tube, or porous electrode, and the reaction chambers can be arranged in a modular series and parallel manner to adapt to different air volume processing requirements).

[0085] The sensing and control module is electrically connected to each functional module to collect system operating parameters and achieve adaptive control.

[0086] The system also includes an airflow drive device and an airflow regulation device. The airflow drive device can be a blower or an exhaust fan. The airflow regulation device includes an electric damper 101, a flow rate and pressure control module 102, and a mixing pipe 103. All of the above devices are conventional commercially available equipment in the field, and their selection can be determined according to the installation scenario and system scale, which will not be described in detail here.

[0087] Specific embodiments: Depending on different application scenarios and usage requirements, the method of the present invention can form four independently configured air handling systems through different airflow organization methods. The core reaction and energy coupling chain of each configuration remain consistent, with differences only in airflow path and energy recovery method. The specific details are as follows:

[0088] Example 1: Positive pressure unidirectional gas supply system (Mode A)

[0089] This embodiment is applicable to environments requiring high standards of cleanliness and protection, such as spacecraft cabins, surgical operating rooms, and cleanrooms, and is used to maintain a positive pressure state in the target environment to prevent backflow of external contaminants.

[0090] Outdoor fresh air is drawn into the treatment device through the air inlet and first enters the energy injection reaction chamber 1. It is excited by the first energy E1 to generate an activated airflow rich in ROS, which completes the immediate inactivation of aerosol pathogens and the degradation of organic matter.

[0091] The activated airflow passes sequentially through the particulate and aerosol removal module 2 to remove particulates and aerosols from the airflow. After that, it enters the energy injection reaction chamber 3 and is excited by the second energy E2 to generate RNS, completing the reduction and equilibrium reaction, so that the residual active species in the airflow are converted into stable gas molecules.

[0092] After the treated airflow is regulated by the flow rate and pressure control module 102, it enters the energy recovery and temperature and humidity control unit 4 to complete the temperature and humidity regulation, and is finally sent to the target area to be protected.

[0093] In this embodiment, an electric damper 101 is installed in the air inlet and pipeline to cooperate with the flow rate and pressure control module 102 to maintain the pressure difference inside the target environment at +10 to +30 Pa, ensuring unidirectional flow of clean air and preventing external polluted air from flowing back into the target environment.

[0094] By organizing positive pressure unidirectional airflow and combining two-stage gas phase chemical reaction and energy recovery, high-standard air disinfection and cleaning treatment are achieved while maintaining a stable positive pressure in the target environment, meeting the high-level epidemic prevention and cleanliness requirements of scenarios such as aerospace and medical cleanrooms.

[0095] Example 2: Negative Pressure One-Way Exhaust System (Mode B)

[0096] This embodiment is applicable to environments that require maintaining a negative pressure state, such as isolation wards, biosafety laboratories, and contamination treatment spaces, to prevent the internal contaminated air from spreading outward.

[0097] The air in the polluted space is drawn into the treatment device through the indoor exhaust port and first enters the energy injection reaction chamber 1. The ROS generated by the first energy E1 rapidly oxidizes and decomposes the pathogenic microorganisms and chemical pollutants in the airflow.

[0098] The treated airflow passes sequentially through the particulate and aerosol removal module 2 to remove relatively oxidizing aerosol clusters and particulates from the airflow. Then, it enters the energy injection reaction chamber 3, where it is excited by the second energy E2 to generate RNS, completing the reduction and equilibrium reaction, and converting the residual active species in the airflow into stable gas molecules.

[0099] The treated airflow enters the energy recovery and temperature and humidity control unit 4, where the temperature and humidity are adjusted and the energy Q3 released by the reaction is pre-recovered, and finally discharged through the outdoor exhaust port.

[0100] In this embodiment, an electric damper 101 is installed in the pipeline, which, together with the flow rate and pressure control module 102, maintains the pressure difference inside the polluted space at -10 to -30 Pa, forming a stable negative pressure to prevent the internal polluted air from spreading outward and avoid secondary pollution.

[0101] By organizing negative pressure unidirectional airflow, polluted air is disinfected before being discharged. This achieves the harmless treatment of polluted air while maintaining a stable negative pressure in the target environment, meeting the epidemic prevention and safe emission requirements of scenarios such as isolation wards and biosafety laboratories.

[0102] Example 3: Partial Recirculation System (Model BR)

[0103] This embodiment is applicable to scenarios requiring energy-saving ventilation, such as commercial buildings, transportation hubs, and high-traffic areas. It can effectively reduce the heating and cooling load on outdoor air while ensuring air quality.

[0104] Fresh air and indoor return air are drawn in through independent ducts. The mixing ratio of fresh air and return air is adjusted by electric damper 101. The mixed airflow enters energy injection reaction chamber 1 and is excited by the first energy E1 to generate ROS, thus completing the inactivation of pathogens and degradation of pollutants in the airflow.

[0105] The treated airflow passes through the particulate and aerosol removal module 2 in sequence to remove particulates and aerosols from the airflow. After that, it enters the energy injection reaction chamber 2 3, where it is excited by the second energy E2 to generate RNS and complete the reduction and equilibrium reaction. After the treated airflow is regulated by the flow rate and pressure control module 102, it enters the energy recovery and temperature and humidity control unit 4 to complete the temperature and humidity regulation and energy recovery, and is finally sent into the target space.

[0106] In this embodiment, the supply air and return air are driven by an independent flow rate and pressure control module 102 to control the ratio of fresh and return air flow rates, so as to keep the residence time and energy distribution of the gas in the reaction chamber stable and ensure the consistency of the disinfection effect. Before mixing, the fresh air and return air are regulated by the corresponding pipelines and then enter the mixing pipe 103 to complete uniform mixing before being sent to the subsequent processing module.

[0107] By organizing the airflow through partial return air circulation, combined with two-stage gas phase chemical reaction and energy recovery, the system can significantly reduce the cooling and heating load and operating energy consumption while ensuring air quality and epidemic prevention effectiveness in the target space. It is suitable for energy-saving ventilation and epidemic prevention scenarios in large-space buildings.

[0108] Example 4: Total Heat Recovery System (Mode C)

[0109] This embodiment is applicable to scenarios requiring high-efficiency closed-loop operation, such as cold chain warehousing, aviation environmental control, and enclosed spaces, and can realize the system's thermal energy self-circulation and high-efficiency operation.

[0110] Fresh air and indoor return air are drawn in through independent ducts and driven by independent flow rate and pressure control modules 102, and enter their respective treatment branches.

[0111] The airflow in the fresh air branch first enters the energy injection reaction chamber 1, and is excited by the first energy E1 to generate ROS. After completing the pathogen inactivation and pollutant degradation, it passes through the particulate and aerosol removal module 2 and the energy injection reaction chamber 3 in sequence to complete the reduction equilibrium reaction.

[0112] The airflow in the return air branch undergoes the same two-stage reaction and particle removal treatment simultaneously;

[0113] The treated fresh air and return air flow enter the energy recovery and temperature and humidity control unit 4 together. The sensible heat and latent heat are transferred between the fresh air and the exhaust air through the total heat exchange structure. At the same time, the energy Q3 released by the reaction is recovered and used for preheating or cooling of the intake air. Finally, the treated clean air flow is sent into the target space.

[0114] By organizing the airflow through total heat recovery, the system achieves dual recovery of residual energy and reaction heat in the exhaust air, which can maximize the energy utilization efficiency of the system, realize the self-circulation of thermal energy, and meet the high-efficiency operation requirements of closed spaces such as cold chain storage and aviation environmental control.

[0115] In one embodiment of the present invention, in order to ensure the dynamic stability of the gas phase reaction and energy recovery process in the method of the present invention, the present invention adopts an intelligent closed-loop control system. The control system adopts the MPC-PID algorithm (or it can be a fuzzy-PID or adaptive control algorithm or model predictive control algorithm, all of which can achieve the same effect of adaptive energy adjustment).

[0116] The closed-loop control system adaptively adjusts the intensity of the first and second energy inputs based on the temperature, humidity, and redox potential signals of the airflow. Through real-time parameter feedback and historical operating condition analysis, the control system dynamically adjusts the energy input and the operating power of the temperature and humidity control unit to ensure the stability of the output airflow temperature, humidity, and redox potential, thus achieving adaptive adjustment of the system operation. Specific control objectives include:

[0117] (1) When airflow is detected When the value exceeds the target value, reduce the input of the first energy E1 to suppress the peroxidation reaction and avoid exceeding the standard for byproducts such as ozone;

[0118] (2) When the temperature T or relative humidity RH of the airflow is detected to deviate from the set target range, adjust the power of the TEC / PTC cooling or heating module in step S4, and start the humidification or dehumidification unit accordingly to maintain the temperature and humidity of the output airflow.

[0119] (3) The dynamic equilibrium reaction exothermic Q3 heat output and system load matching relationship are used to maximize energy regeneration efficiency.

[0120] The specific implementation method is as follows:

[0121] 1. Parameter Acquisition

[0122] The control system collects system operating parameters in real time through a sensing module, including the oxidation-reduction potential of the airflow. ,temperature relative humidity The system measures electrical conductivity, airflow rate, and system differential pressure, and inputs this data into the control unit for dynamic calculation.

[0123] 2. Control Logic

[0124] The control system is based on a control mechanism combining model predictive control (MPC) and proportional-integral-derivative (PID) control. It automatically adjusts the energy input intensity in steps S1 and S3 based on the acquired real-time parameters. And the load power of each execution module in step S4.

[0125] In the embodiment employing model predictive control algorithms, the system establishes a dynamic predictive model for energy injection into the reaction chamber, using the airflow temperature... relative humidity With redox potential As a state variable, the first energy input power is... Corresponding to the first energy applied in energy injection reaction chamber one Second energy input power Corresponding to the second energy applied in energy injection reaction chamber two Humidity control power The above three factors together constitute the main control variables of the control system, representing the operating power of the temperature and humidity control module.

[0126] With the first energy input power Second energy input power and humidity control power As a control variable, the system constraints are set as follows:

[0127]

[0128] The control objective function is defined as:

[0129]

[0130] in, These are the weighting coefficients. The system solves for the future through rolling optimization. The system predicts the state step by step, calculates the optimal control input sequence, and achieves dynamic optimization of the energy injection and temperature and humidity control units.

[0131] In embodiments employing adaptive control algorithms, the control system continuously estimates the dynamic response factor of the gas-phase reaction zone based on real-time measured deviations in parameters such as airflow temperature, humidity, and redox potential, and automatically corrects the proportional gain of the controller.

[0132] Integral coefficient and differential coefficients This enables real-time optimization of energy input power and temperature and humidity control module parameters.

[0133] When an increase in system output deviation or a sudden change in response load is detected, the algorithm calculates the error online. And update the control parameters according to the following relationship:

[0134] ;

[0135] By adjusting the control gain in real time according to the direction and amplitude of system error changes, stable control of temperature, humidity, and redox potential in the reaction zone is achieved. When the system oscillates, the gain is automatically reduced. To prevent overshoot; when the response is lagging, increase or

[0136] Accelerate convergence.

[0137] This adaptive control algorithm can automatically tune operating parameters under different application loads and environmental conditions, always maintaining a dynamic balance between energy input and response speed, and significantly improving the system's response sensitivity and steady-state accuracy.

[0138] The control process follows the following dynamic adjustment relationship:

[0139]

[0140] in, Basic energy input level; and These are the temperature and humidity regulation coefficients, respectively. and Set the desired temperature and humidity parameters for the system.

[0141] The algorithm calculates the deviation between airflow temperature and humidity in real time. and The system dynamically adjusts the energy input intensity to keep the energy injection in the reaction zone within an optimized range. When an increase in ambient temperature or high relative humidity is detected, the system automatically reduces the energy input ratio to avoid overheating or humidity accumulation; conversely, when the temperature or humidity is low, the energy input intensity is increased to accelerate the generation rate of active species in the reaction zone.

[0142] At the same time, the system is based on the redox potential The changing trend is used to dynamically adjust the calculation weights of the three parameters of the PID controller. When When the value deviates from the target value, the system increases the proportional gain. To speed up the response time, or adjust the integral gain. To eliminate steady-state deviations and appropriately reduce the differential gain during system oscillations. To suppress overshoot.

[0143] Through the above adaptive control method, the system can automatically match the optimal energy input level under different airflow conditions and load conditions, realize real-time stable control of temperature, humidity and oxidation-reduction potential in the gas phase reaction zone, and effectively improve the overall dynamic response speed and energy utilization efficiency of the system.

[0144] 3. Safety protection and control

[0145] The control system is also equipped with safety protection logic, specifically:

[0146] The ozone and nitrogen dioxide concentrations at the gas outlet are monitored in real time, and the outlet O3 is controlled to be ≤0.05ppm and NO2 to be ≤0.02ppm. When the concentration exceeds the standard, the input ratio of E1 and E2 is automatically adjusted to accelerate the reduction and neutralization reaction.

[0147] The system monitors the internal temperature in real time. When the temperature exceeds 80°C, it automatically cuts off the energy input circuit and issues an alarm signal to ensure the safe operation of the system.

[0148] The control system can be implemented by an independent microcontroller unit (MCU) or integrated into the control system of the central air conditioning unit. It can be linked with each actuator through a communication bus to achieve adaptive adjustment of the entire system. The hardware implementation methods of the above-mentioned control units are all conventional technical means in this field and will not be described in detail here.

[0149] It should be noted that, in this invention, although the specification describes the embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An energy-coupled environmental gas-phase transduction method, characterized in that, This includes the following steps, executed sequentially in series: S1 Oxidation and Inactivation Step: Apply first energy to the airflow to be treated to stimulate oxygen and water molecules in the airflow to generate active oxygen species, thereby achieving the oxidation and inactivation of pathogens in aerosols in the airflow and the degradation of organic matter through the active oxygen species; S2 Particle Removal Step: The airflow treated in step S1 is subjected to particulate and aerosol removal treatment. S3 Reduction Equilibrium Step: Apply a second energy to the gas flow after the S2 step to stimulate the nitrogen and oxygen in the gas flow to generate active nitrogen species. The active nitrogen species then undergo a reduction and neutralization reaction with the residual active oxygen species in the gas flow to generate stable and harmless gaseous products, while releasing reaction energy. S4 Energy Recovery and Temperature and Humidity Control Step: The temperature and humidity of the airflow treated by the S3 step are precisely controlled, and the energy released by the reduction and neutralization reaction in the S3 step is recovered and reused.

2. The energy-coupled environmental gas phase transduction method according to claim 1, characterized in that, In step S1, a catalyst is placed in the reaction zone where the first energy is applied. The catalyst is fixed to the inner wall of the reaction chamber, the surface of the electrode gap, or filled in the gas flow channel to form an energy-catalytic synergistic reaction zone. And / or, in step S1, moisture is introduced into the airflow to regulate the relative humidity of the airflow, thereby promoting the generation of free radicals and improving the efficiency of oxidation and inactivation.

3. The energy-coupled environmental gas phase transduction method according to claim 1, characterized in that, In step S2, particles and aerosols in the airflow are removed by at least one of the following methods: high-voltage electrostatic dust collection, cyclone separation, or dust collection bag. After the S1 step, the particles in the airflow are charged by energy deposition, forming relatively oxidizing aerosol clusters, which are then removed to prevent pathogens from multiplying on the particles and to prevent secondary pollution to the surrounding environment.

4. The energy-coupled environmental gas phase transduction method according to claim 1, characterized in that, In step S3, a catalyst is placed in the reaction region where the second energy is applied. The catalyst is fixed to the inner wall of the reaction chamber, the surface of the electrode gap, or filled in the gas flow channel to form an energy-catalytic synergistic reaction zone. And / or, in step S3, moisture is introduced into the airflow to regulate the relative humidity of the airflow, thereby increasing the neutralization reaction rate between reactive nitrogen species and residual reactive oxygen species.

5. The energy-coupled environmental gas phase transduction method according to any one of claims 1-4, characterized in that, In step S4, the dual recovery of sensible heat and latent heat between the intake air to be treated and the system exhaust air is achieved through a total heat exchange structure. Meanwhile, the energy released by the recovered reduction and neutralization reaction is used for at least one of the following purposes: heating the airflow, driving the refrigeration cycle, and driving humidity control. The condensate generated during the temperature and humidity control process is recovered and used for water supply in steps S1 and / or S3.

6. The energy-coupled environmental gas phase transduction method according to any one of claims 1-4, characterized in that, The method also includes a closed-loop control step: The system collects real-time operating parameters such as the oxidation-reduction potential, temperature, and relative humidity of the airflow. Based on the collected parameters, it adaptively adjusts the input intensity of the first and second energies, as well as the operating conditions for temperature and humidity control, to achieve adaptive adjustment of the system's operating conditions.

7. The energy-coupled environmental gas phase transduction method according to claim 6, characterized in that, The closed-loop control adopts any combination of MPC-PID, fuzzy-PID, adaptive control algorithm, and model predictive control algorithm; When the redox potential of the airflow is detected to be higher than the target value, the input ratio of the first energy and the second energy is automatically adjusted. When the temperature or relative humidity of the airflow deviates from the set range, the operating power of the temperature and humidity control module is automatically adjusted to maintain the stability of the temperature and humidity of the output airflow.

8. The energy-coupled environmental gas phase transduction method according to any one of claims 1-4, characterized in that, The method also includes safety protection and control steps: The ozone and nitrogen dioxide concentrations of the treated airflow are monitored in real time, and the outlet ozone concentration is controlled to be no higher than 0.05 ppm and the nitrogen dioxide concentration to be no higher than 0.02 ppm. When the concentration exceeds the standard, the input ratio of the first energy and the second energy is automatically adjusted to accelerate the reduction and neutralization reaction.

9. The energy-coupled environmental gas phase transduction method according to claim 1, characterized in that, The first energy in step S1 is any combination of ultraviolet light, high-energy particle beam, high-voltage ionization, positive electric field discharge, microwave, photocatalysis, and plasma.

10. The energy-coupled environmental gas phase transduction method according to claim 1, characterized in that, The second energy in step S3 is any combination of ultraviolet light, high-energy particle beam, high-voltage ionization, negative electric field discharge, microwave, photocatalysis, and plasma.

Images