Glass curtain wall photocatalytic methane removal device and methane removal control method

Abstract

The application provides a glass curtain wall photocatalytic methane removal device and a methane removal control method, which comprises a solar photovoltaic panel, a fan and a plurality of layers of titanium dioxide photocatalytic material layers; the solar photovoltaic panel is hinged to the upper part of a wall support and located at the outlet of a building double-layer glass top, and is used for photocatalysis of the plurality of layers of titanium dioxide photocatalytic material layers; the fan is installed at the lower part of the wall support and located at the inlet of the building double-layer glass bottom; a titanium dioxide photocatalytic material layer is coated on the inner wall of the outer single-layer glass of the building double-layer glass, a titanium dioxide photocatalytic material layer is coated on the outer wall of the inner double-layer glass of the building double-layer glass, and the surface of the rhombic prism in the cavity is coated with a titanium dioxide photocatalytic material layer. The device and the method can effectively improve the methane removal effect in the air of the building, and can effectively improve the degradation efficiency of photocatalytic methane.

Description

Technical Field

[0001] This application relates to the field of environmental protection, and in particular to a photocatalytic methane removal device and a methane removal control method for glass curtain walls. Background Technology

[0002] With the acceleration of industrialization, human beings have continuously increased the amount of greenhouse gases emitted into the atmosphere in pursuit of economic benefits. Methane, as the world's second largest greenhouse gas, has seen its emissions steadily climb, now accounting for 16% of total global greenhouse gas emissions. Methane is a short-lived but powerful gas with a rapid warming effect; its atmospheric lifetime is only 12 years. Its global warming potential (GWP20) on a 20-year timescale is approximately 84 times that of carbon dioxide, and on a 100-year timescale, it is 28 times that of carbon dioxide, posing a significant impact on global climate change. Currently, methane emissions contribute 25% to anthropogenically perceived global warming. However, most traditional greenhouse gas removal technologies target carbon dioxide, with relatively few technologies specifically designed for atmospheric methane removal.

[0003] Under mild conditions, the direct conversion of methane can be achieved through electrocatalysis, thermocatalysis, and photocatalysis. Electrocatalysis suffers from limitations due to methane's low solubility in water and low current efficiency, while thermocatalysis requires heating to catalyze methane, resulting in high energy consumption. Compared to traditional catalytic degradation methods, photocatalysis offers advantages such as operating at room temperature and atmospheric pressure, low energy consumption, high operability, and fewer reaction byproducts, thus attracting widespread attention and research. Currently, photocatalytic coatings are used in roofing and building exteriors. However, because photocatalytic reactions are highly susceptible to the influence of sunlight, climate, wind speed, and other environmental factors, it is difficult to control and adjust the photocatalytic reaction to ensure its degradation efficiency. Summary of the Invention

[0004] One of the objectives of this application is to provide a photocatalytic methane removal device and a methane removal control method for glass curtain walls, so as to solve the problem of low methane removal efficiency in existing buildings.

[0005] The technical solution of this application is:

[0006] A photocatalytic methane removal device for a glass curtain wall includes a solar photovoltaic panel, a fan, and a multilayer titanium dioxide photocatalytic material layer. The solar photovoltaic panel is hinged to the upper part of the wall support and located at the outlet at the top of the double-glazed glass of the building, for photocatalyzing the multilayer titanium dioxide photocatalytic material layer. The fan is installed at the lower part of the wall support and located at the entrance at the bottom of the double-glazed glass of the building. The titanium dioxide photocatalytic material layer is applied to the inner wall of the outer single-layer glass of the double-glazed glass and the titanium dioxide photocatalytic material layer is applied to the outer wall of the inner double-glazed glass.

[0007] As one technical solution of this application, a plurality of spaced rhomboid prisms are installed in the cavity formed by the outer single-layer glass and the inner double-layer glass, and the outer surface of each rhomboid prism is coated with the titanium dioxide photocatalytic material layer.

[0008] As one technical solution of this application, the rhomboid prisms are arranged in rows and staggered along the height direction of the cavity, and are spaced apart from the inner wall of the outer single-layer glass and the outer wall of the inner double-layer glass.

[0009] As one technical solution of this application, a high-efficiency filter is hinged in the entrance at the bottom of the double-glazed window of the building; the fan is located below the high-efficiency filter.

[0010] As one technical solution of this application, a first energy-saving illumination lamp is installed at the lower part of the wall support, and a second energy-saving illumination lamp is installed at the upper part of the wall support. Both the first energy-saving illumination lamp and the second energy-saving illumination lamp are located in the cavity formed by the outer single-layer glass and the inner double-layer glass.

[0011] As one technical solution of this application, a first temperature sensor and a first pressure sensor are installed at intervals at the top of the cavity enclosed by the outer single-layer glass and the inner double-layer glass. The first temperature sensor is used to monitor the temperature at the outlet, and the first pressure sensor is used to monitor the pressure at the outlet. A second temperature sensor and a second pressure sensor are installed at intervals at the bottom of the cavity. The second temperature sensor is used to monitor the temperature at the inlet, and the second pressure sensor is used to monitor the pressure at the inlet.

[0012] As one technical solution of this application, a plurality of first electric field electrodes are installed at intervals along the height direction from bottom to top on the inner wall of the outer single-layer glass, and a plurality of second electric field electrodes are installed at intervals along the height direction from bottom to top on the outer wall of the inner double-layer glass. The first electric field electrodes and the second electric field electrodes correspond one-to-one and are all located between two adjacent rows of rhomboid prisms.

[0013] A methane removal control method for controlling the operation of the aforementioned glass curtain wall photocatalytic methane removal device includes the following steps:

[0014] Step 1: Based on the NSGA-II algorithm, random individuals are generated using a hybrid chaotic mapping model. The hybrid chaotic mapping model is as follows:

[0015] u k+1 =μu k (1-u k ), 0≤u k ≤1

[0016]

[0017]

[0018]

[0019] In the formula: μ is the control parameter, For r k initial value, For u k The initial value of r k u k All values ​​are randomly selected between 0 and 1;

[0020]

[0021] In the formula: x jmin Let x be the minimum value of the j-th decision variable. jmax Let $n$ be the maximum value of the $j$-th decision variable, where $j$ takes values ​​from 1 to $n$, $n$ is the number of decision variables, and $Np$ is the population size. Obtained through iteration;

[0022] Step 2: Based on the NSGA-II algorithm, optimization is performed before system operation to determine the optimal combination of decision variables when the system achieves the target operating condition performance. The decision variables are the rotation angle of the solar photovoltaic panel, the fan speed, the arrangement of the rhomboid prism, the discharge power of the first electric field electrode, and the discharge power of the second electric field electrode. After the non-dominated ordination is completed, the individuals in the population are comprehensively ranked using the analytic hierarchy process (AHP). The evaluation index is determined as a three-level objective function. The objective function is the amount of methane degradation in the system environmental index, the photocatalytic degradation efficiency in the thermodynamic index, and the carbon credit income in the economic index. After ranking, the top 50% of individuals in the population are selected to enter the mating pool. During the optimization process, upper and lower limits of each decision variable are input, the population size is set to Pop, and the number of evolutions is set to Gen. If the device deviates from the set target operating conditions during operation, the temperature and pressure values ​​monitored and fed back in real time by the first temperature sensor, the first pressure sensor, the second temperature sensor, and the second pressure sensor are adjusted. This is done by adjusting the rotation angle of the solar photovoltaic panel, the speed of the fan, the discharge power of the first electric field electrode, and the discharge power of the second electric field electrode. As a result, the flow rate, temperature, pressure, and catalytic rate in the cavity enclosed by the outer single-layer glass and the inner double-layer glass change, while maintaining the efficient catalytic degradation of methane.

[0023] The beneficial effects of this application are:

[0024] The photocatalytic methane removal device and method for glass curtain walls disclosed in this application involve coating a layer of titanium dioxide photocatalytic material onto the inner wall of the single-layer glass on the outer side of the double-layer glass curtain wall, the outer wall of the double-layer glass on the inner side, and the surface of the rhombic prisms within the cavity. Under illumination, a photocatalytic reaction occurs, degrading methane and reducing the concentration of methane in the atmosphere. This has significant implications for mitigating the greenhouse effect and improving the climate. Furthermore, since building glass curtain walls are widely used in high-rise buildings, this device and method utilize the extensive surface area of ​​the double-layer glass curtain wall to absorb more light, thereby improving the methane removal effect. Moreover, the device can continuously provide illumination for the photocatalytic reaction by adjusting the angle of the solar photovoltaic panels. It can also continuously provide illumination for the photocatalytic reaction by adjusting the angles of the first and second energy-storing lamps, ensuring that methane degradation is unaffected by light intensity. Furthermore, this method, based on an improved NSGA-II algorithm, clarifies the optimal combination of decision variables when the system acquires target operating condition performance. When the system deviates from the target operating condition, adjustments are made using the temperature and pressure values ​​monitored and fed back by the first temperature sensor, the first pressure sensor, the second temperature sensor, and the second pressure sensor. This ensures the overall methane decomposition rate and temperature and concentration field changes within the cavity, maintaining efficient operation and improving the photocatalytic methane degradation efficiency. Therefore, it combines a double-glazed building curtain wall with photocatalytic materials. The glass curtain wall contains thermal channels, allowing outdoor air to flow upwards from the bottom of the channels under thermal pressure. The large surface area of ​​the glass curtain wall absorbs more light, and the photocatalytic material coated on the inner wall of the cavity and the surface of the prisms enables efficient methane degradation upon contact with air. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 A schematic diagram of the photocatalytic methane removal device for glass curtain walls provided in the embodiments of this application;

[0027] Figure 2 This is a two-dimensional schematic diagram of the staggered arrangement of rhomboid prisms provided in an embodiment of this application;

[0028] Figure 3 This is a three-dimensional schematic diagram of the staggered arrangement of rhomboid prisms provided in an embodiment of this application.

[0029] Icons: 1-Solar photovoltaic panel; 2-Fan; 3-Titanium dioxide photocatalytic material layer; 4-Wall support; 5-Rhomboid prism; 6-High-efficiency filter; 7-First energy storage lamp; 8-Second energy storage lamp; 9-First temperature sensor; 10-First pressure sensor; 11-Second temperature sensor; 12-Second pressure sensor; 13-First electric field electrode; 14-Outer single-layer glass; 15-Inner double-layer glass. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0032] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0033] In the description of this application, it should be noted that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use. They are only used to facilitate the description of this application and to simplify the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0034] Furthermore, in this application, unless otherwise expressly specified and limited, "above or below" the first feature may include direct contact between the first and second features, or contact between the first and second features through another feature between them. Moreover, "above," "over," and "on" the first feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the first feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0035] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0036] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0037] Example:

[0038] Please refer to Figure 1 (Refer to) Figures 2 to 3This application provides a photocatalytic methane removal device for glass curtain walls, which combines a double-layer glass curtain wall with a photocatalytic material. The glass curtain wall has a thermal channel inside, and outdoor air flows upward from the bottom of the channel under thermal pressure. The large surface area of ​​the glass curtain wall can absorb more light. The photocatalytic material is coated on the inner wall of the cavity and the surface of the prism, and can achieve efficient degradation of methane after contact with air. The device mainly includes a solar photovoltaic panel 1, a fan 2, and a multi-layer titanium dioxide photocatalytic material layer 3. The solar photovoltaic panel 1 is hinged to the upper part of the wall support 4 and located at the outlet at the top of the double-glazed building. It is used to photocatalyze the multi-layer titanium dioxide photocatalytic material layer 3 and can track sunlight to maintain high power generation efficiency. The fan 2 is installed at the lower part of the wall support 4 and located at the entrance at the bottom of the double-glazed building. The fan 2 can guide airflow into the cavity formed by the outer single-layer glass 14 and the inner double-glazed glass 15. The inner wall of the outer single-layer glass 14 and the outer wall of the inner double-glazed glass 15 are covered with the titanium dioxide photocatalytic material layer 3. At the same time, multiple spaced rhomboid prisms 5 are installed in the cavity formed by the outer single-layer glass 14 and the inner double-glazed glass 15. The outer surface of each rhomboid prism 5 is covered with the titanium dioxide photocatalytic material layer 3. The titanium dioxide photocatalytic material applied to the inner wall of the outer single-layer glass 14, the surface of the rhombic prism 5, and the outer wall of the inner double-layer glass 15 are all uniformly coated. Furthermore, a high-efficiency filter 6 is hinged to the entrance at the bottom of the double-layer glass; the fan 2 is located below the high-efficiency filter 6. A first energy-saving lamp 7 is installed at the lower part of the wall support 4, and a second energy-saving lamp 8 is installed at the upper part of the wall support 4. Both the first energy-saving lamp 7 and the second energy-saving lamp 8 are located within the cavity formed by the outer single-layer glass 14 and the inner double-layer glass 15, and are activated when outdoor light is weak or during nighttime work.

[0039] Furthermore, a first temperature sensor 9 and a first pressure sensor 10 are installed at intervals at the top of the cavity enclosed by an outer single-layer glass 14 and an inner double-layer glass 15. The first temperature sensor 9 is used to monitor the temperature at the outlet, and the first pressure sensor 10 is used to monitor the pressure at the outlet. A second temperature sensor 11 and a second pressure sensor 12 are installed at intervals at the bottom of the cavity. The second temperature sensor 11 is used to monitor the temperature at the inlet, and the second pressure sensor 12 is used to monitor the pressure at the inlet. Multiple first electric field electrodes 13 are installed at intervals along the height direction from bottom to top on the inner wall of the outer single-layer glass 14, and multiple second electric field electrodes are installed at intervals along the height direction from bottom to top on the outer wall of the inner double-layer glass 15. The first electric field electrodes 13 and the second electric field electrodes correspond one-to-one and are all located between two adjacent rows of rhomboid prisms 5.

[0040] It should be noted that the rhomboid prisms 5 are arranged in a staggered row along the height direction of the cavity to increase the turbulence when the air passes by. The rhomboid prisms 5 are spaced apart from the inner wall of the outer single-layer glass 14 and the outer wall of the inner double-layer glass 15, and there are gaps between their top and bottom and the inner wall of the outer single-layer glass 14 and the outer wall of the inner double-layer glass 15, respectively.

[0041] The working principle of this device is as follows:

[0042] Driven by fan 2, outdoor air is filtered through an adjustable-angle high-efficiency filter 6 to remove larger impurities before continuously flowing into the cavity. The air inside the cavity, under thermal pressure, flows out through the top opening, creating an orderly flow that continuously captures methane in the air. Under sunlight, the titanium dioxide photocatalyst material on the inner wall of the outer single-layer glass 14, the outer wall of the inner double-layer glass 15, and the surface of the rhombic prism 5 generates electron-hole pairs, resulting in a redox reaction that decomposes CH4 in the passing air into CO2 and H2O, mitigating the greenhouse effect caused by methane.

[0043] Meanwhile, the device is equipped with an adjustable-angle solar photovoltaic panel 1 on top, which converts light energy into electrical energy for storage and provides power to the first energy-storing lamp 7, the second energy-storing lamp 8, the first electric field electrode 13, and the second electric field electrode. When the light is weak or during nighttime operation, the first energy-storing lamp 7 and the second energy-storing lamp 8 serve as supplementary power sources to provide illumination for the photocatalytic reaction. The first electric field electrode 13 and the second electric field electrode are used to increase the electron concentration in the photocatalytic reaction region, enhance the activity of the surface photocatalytic material, and reduce the impact of light on the reaction, thus ensuring continuous operation.

[0044] Furthermore, due to shortcomings in the traditional NSGA-II algorithm, it uses the rand function to generate random numbers between 0 and 1 during initialization, which are then multiplied by the input decision variable values. When the population size is small (e.g., 100), the uniformity of the random values ​​generated by the rand function is poor, with more values ​​at the extremes of 0 and 1 than within the range. Therefore, in this embodiment, a methane removal control method is also provided, which is mainly used to control the operation of the above-mentioned glass curtain wall photocatalytic methane removal device; the method mainly includes the following steps:

[0045] Step 1: Based on the NSGA-II algorithm, initialization uses the rand function in the hybrid chaotic mapping model to generate random individuals. The hybrid chaotic mapping model is as follows:

[0046] u k+1 =μu k (1-u k ), 0≤u k ≤1

[0047]

[0048]

[0049]

[0050] In the formula: μ is the control parameter, For r k initial value, For u k The initial value of r k u k All values ​​are randomly selected between 0 and 1;

[0051]

[0052] In the formula: x jmin Let x be the minimum value of the j-th decision variable. jmax Let $n$ be the maximum value of the $j$-th decision variable, where $j$ takes values ​​from 1 to $n$, $n$ is the number of decision variables, and $Np$ is the population size. Obtained through iteration;

[0053] Step Two: Based on the NSGA-II algorithm, optimization is performed before system operation to determine the optimal combination of decision variables for achieving the target operating condition performance. The decision variables are the rotation angle of solar photovoltaic panel 1, the speed of fan 2, the arrangement of rhomboid prism 5, the discharge power of the first electric field electrode 13, and the discharge power of the second electric field electrode. After the non-dominated ordination is completed, the individuals within the population are comprehensively ranked using the analytic hierarchy process (AHP). The evaluation index is determined as a three-level objective function: methane degradation in the system's environmental indicators, photocatalytic degradation efficiency in the thermodynamic indicators, and carbon credit income in the economic indicators. After ranking, the top 50% of individuals within the population are selected to enter the mating pool. During the optimization process, the upper and lower limits of each decision variable are input, the population size is set to Pop, and the number of evolutions is set to Gen. If the device deviates from the set target operating conditions during operation, the temperature and pressure values ​​monitored and fed back in real time by the first temperature sensor 9, the first pressure sensor 10, the second temperature sensor 11, and the second pressure sensor 12 are adjusted. The angle of the solar photovoltaic panel 1, the speed of the fan 2, the discharge power of the first electric field electrode 13, and the discharge power of the second electric field electrode are adjusted to change the flow rate, temperature, pressure, and catalytic rate in the cavity enclosed by the outer single-layer glass 14 and the inner double-layer glass 15, and to maintain the efficient catalytic degradation of methane.

[0054] Compared to using the rand function to generate random numbers during initialization, the mixed chaotic mapping model in this embodiment can eliminate the poor uniformity of generated random numbers when the population size Pop is small, thus improving the performance of the evolutionary algorithm in terms of population diversity and convergence. Furthermore, the traditional NSGA-II algorithm, during the selection of individuals for the mating pool in the bidding process, sometimes results in a single excellent individual being selected multiple times, leading to duplicate individuals in the mating pool and a decrease in population diversity. However, the Analytic Hierarchy Process (AHP) is used to comprehensively rank individuals within the population after non-dominated ordination. The evaluation index is determined as three-level objective functions: methane degradation (environmental performance), photocatalytic degradation efficiency (thermal performance), and carbon credit income (economic performance). After ranking, the top 50% of individuals within the population are selected for the mating pool, avoiding duplicate individuals and improving population diversity.

[0055] Based on the improved NSGA-II algorithm, a system operation model is constructed. Before system operation, optimization is performed to determine the optimal combination of decision variables when the system achieves the target operating condition performance. The decision variables are the rotation angle of the adjustable solar photovoltaic panel 1, the speed of the fan 2, the arrangement of the rhombic prism 5, and the discharge power of the first electric field electrode 13 and the second electric field electrode. The objective functions are the system environmental indicators (methane degradation), thermodynamic indicators (photocatalytic degradation efficiency), and economic indicators (carbon credit income). During the optimization process, the upper and lower limits of each decision variable are input, the population size is set to Pop, and the number of evolutions is set to Gen.

[0056] If the device deviates from the set target operating conditions during operation, based on the real-time monitoring and feedback of temperature and pressure values ​​by the first temperature sensor 9, the first pressure sensor 10, the second temperature sensor 11, and the second pressure sensor 12, the flow rate, temperature, pressure, and catalytic rate in the cavity are changed by adjusting the rotation angle of the adjustable solar photovoltaic panel 1, the speed of the fan 2, and the discharge power of the first electric field electrode 13 and the second electric field electrode, so as to maintain the efficient catalytic degradation of methane.

[0057] In summary, the photocatalytic methane removal device and methane removal control method for glass curtain walls of this application involves coating the inner wall of the single-layer glass 14 on the outer side of the double-layer glass curtain wall, the outer wall of the double-layer glass 15 on the inner side, and the surface of the rhombic prism 5 inside the cavity with a titanium dioxide photocatalytic material layer 3. Under illumination, a photocatalytic reaction occurs to degrade methane, reducing the concentration of methane in the atmosphere, which is of significant importance for mitigating the greenhouse effect and improving the climate environment. Furthermore, since building glass curtain walls are widely used in high-rise buildings, this device and method utilize the large surface area of ​​the double-layer glass curtain wall to absorb more light, thereby improving the methane removal effect. Moreover, the device can continuously provide illumination for the photocatalytic reaction by adjusting the angle of the solar photovoltaic panel 1, and can also continuously provide illumination for the photocatalytic reaction by adjusting the angles of the first and second energy-storing lamps 7 and 8, even when the light is weak or during nighttime operation, so that methane degradation is not affected by the intensity of light. Furthermore, this method, based on an improved NSGA-II algorithm, clarifies the optimal combination of decision variables when the system acquires target operating condition performance. When the system deviates from the target operating condition, adjustments are made by monitoring and feeding back temperature and pressure values ​​using the first temperature sensor 9, the first pressure sensor 10, the second temperature sensor 11, and the second pressure sensor 12. This ensures the overall methane decomposition rate and temperature and concentration field changes within the cavity remain efficient, thereby improving the photocatalytic methane degradation efficiency. Therefore, it combines a double-layered glass curtain wall with photocatalytic materials. The glass curtain wall contains thermal channels, allowing outdoor air to flow upwards from the bottom of the channels under thermal pressure. The large surface area of ​​the glass curtain wall absorbs more light, and the photocatalytic material coated on the inner wall of the cavity and the surface of the prisms enables efficient methane degradation upon contact with air.

[0058] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A methane removal control method for controlling the operation of a photocatalytic methane removal device for glass curtain walls, characterized in that, The glass curtain wall photocatalytic methane removal device includes a solar photovoltaic panel, a fan, and a multi-layer titanium dioxide photocatalytic material layer. The solar photovoltaic panel is hinged to the upper part of the wall support and located at the outlet at the top of the double-glazed glass, used for photocatalysis of the multi-layer titanium dioxide photocatalytic material layer. The fan is installed at the lower part of the wall support and located at the entrance at the bottom of the double-glazed glass. The titanium dioxide photocatalytic material layer is applied to the inner wall of the outer single-layer glass of the double-glazed glass, and the titanium dioxide photocatalytic material layer is applied to the outer wall of the inner double-glazed glass. Multiple spaced rhomboid prisms are installed in the cavity formed by the outer single-layer glass and the inner double-glazed glass, and the titanium dioxide photocatalytic material layer is applied to the outer surface of each rhomboid prism. The rhomboid prisms are arranged in alternating rows along the height direction of the cavity and are aligned with the outer single-layer glass. The inner wall of the glass and the outer wall of the inner double-layered glass are spaced apart; a first temperature sensor and a first pressure sensor are spaced apart at the top of the cavity formed by the outer single-layered glass and the inner double-layered glass, the first temperature sensor is used to monitor the temperature at the outlet, and the first pressure sensor is used to monitor the pressure at the outlet; a second temperature sensor and a second pressure sensor are spaced apart at the bottom of the cavity, the second temperature sensor is used to monitor the temperature at the inlet, and the second pressure sensor is used to monitor the pressure at the inlet; a plurality of first electric field electrodes are spaced apart along the height direction from bottom to top on the inner wall of the outer single-layered glass, and a plurality of second electric field electrodes are spaced apart along the height direction from bottom to top on the outer wall of the inner double-layered glass, the first electric field electrodes and the second electric field electrodes are one-to-one corresponding and are all located between two adjacent rows of rhombic prisms; The method includes the following steps: Step 1: Based on the NSGA-II algorithm, random individuals are generated using a hybrid chaotic mapping model. The hybrid chaotic mapping model is as follows: ， ， In the formula: μ is the control parameter, for initial value, for initial value, , All values ​​are randomly selected between 0 and 1; ， In the formula: Let j be the minimum value of the j-th decision variable. Let $n$ be the maximum value of the $j$-th decision variable, where $j$ takes values ​​from 1 to $n$, $n$ is the number of decision variables, and $Np$ is the population size. Obtained through iteration; Step 2: Based on the NSGA-II algorithm, optimization is performed before system operation to determine the optimal combination of decision variables when the system achieves the target operating condition performance. The decision variables are the rotation angle of the solar photovoltaic panel, the fan speed, the arrangement of the rhomboid prism, the discharge power of the first electric field electrode, and the discharge power of the second electric field electrode. After the non-dominated ordination is completed, the individuals in the population are comprehensively ranked using the analytic hierarchy process (AHP). The evaluation index is determined as a three-level objective function. The objective function is the methane degradation amount in the system environmental index, the photocatalytic degradation efficiency in the thermodynamic index, and the carbon credit income in the economic index. After ranking, the top 50% of individuals in the population are selected to enter the mating pool. During the optimization process, upper and lower limits of each decision variable are input, the population size is set to Pop, and the number of evolutions is set to Gen. If the device deviates from the set target operating conditions during operation, the temperature and pressure values ​​monitored and fed back in real time by the first temperature sensor, the first pressure sensor, the second temperature sensor, and the second pressure sensor are adjusted. This is done by adjusting the rotation angle of the solar photovoltaic panel, the speed of the fan, the discharge power of the first electric field electrode, and the discharge power of the second electric field electrode. As a result, the flow rate, temperature, pressure, and catalytic rate in the cavity enclosed by the outer single-layer glass and the inner double-layer glass change, while maintaining the efficient catalytic degradation of methane.

2. The methane removal control method according to claim 1, characterized in that, A high-efficiency filter is hinged to the entrance at the bottom of the building's double-glazed windows; the fan is located below the high-efficiency filter.

3. The methane removal control method according to claim 1, characterized in that, A first energy-saving illumination lamp is installed at the lower part of the wall support, and a second energy-saving illumination lamp is installed at the upper part of the wall support. Both the first and second energy-saving illumination lamps are located in the cavity formed by the outer single-layer glass and the inner double-layer glass.

Images