Building energy-saving fresh air treatment device

By integrating PV, PT, and PF modules into the fresh air system, combined with self-cleaning filters and intelligent control systems, the problems of low energy efficiency and poor air purification effect of traditional fresh air systems are solved, achieving high-efficiency energy saving, emission reduction, and air treatment.

CN120926523APending Publication Date: 2025-11-11WENZHOU POLYTECHNIC
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Patent Information

Application Number
CN202511161910.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-19
Publication Date
2025-11-11

AI Technical Summary

Technical Problem

Traditional fresh air systems suffer from problems such as low energy efficiency, poor air purification effect, low level of intelligence, insufficient heat recovery function and high maintenance cost.

Method used

The system uses PV modules to convert solar energy into electrical energy, PT modules to convert solar energy into thermal energy, and PF modules for ultraviolet sterilization. Combined with a self-cleaning filter and an intelligent control system, it achieves efficient air treatment.

Benefits of technology

It improves energy efficiency, effectively removes bacteria and viruses from the air, reduces maintenance costs, and enhances indoor air quality and comfort.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a building energy-saving fresh air treatment device which comprises a PV module used for converting solar energy into electric energy for system operation or power supply for a refrigeration system; the PT module is used for absorbing solar energy and converting the solar energy into heat energy for heating fresh air; and the PF module comprises a light collecting plate and an ultraviolet sterilization chamber, the light collecting plate is arranged on the top face of the ultraviolet sterilization chamber, the light capturing efficiency is improved, the filtered light is guided into the sterilization chamber, and the ultraviolet sterilization chamber concentrates ultraviolet rays to conduct efficient sterilization treatment on the fresh air. According to the device, through comprehensive utilization of photovoltaic, photo-thermal and ultraviolet light in ambient light and application of the efficient photovoltaic cell panel, solar energy can be directly converted into electric energy through the device, green power is provided for operation of the whole system, dependence on a traditional power grid is remarkably reduced, the solar energy is efficiently converted into heat energy through the photo-thermal module, and the solar energy is efficiently converted into heat energy through the high-efficiency photovoltaic cell panel. The air conditioner is used for preheating or heating fresh air, and the utilization efficiency of energy is improved.
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Description

Technical Field

[0001] This invention relates to the field of fresh air system technology, specifically to a building energy-saving fresh air handling device. Background Technology

[0002] With the rapid development of modern society, people's demands for indoor air quality are increasing. Especially during industrialization and urbanization, air pollution has become increasingly serious, and indoor air quality directly affects people's health and quality of life. Therefore, the market demand for fresh air systems that can effectively improve indoor air quality is constantly growing. At the same time, with the global emphasis on environmental protection and sustainable development, energy conservation and emission reduction have become important tasks for all industries. Therefore, developing a fresh air system that can both improve indoor air quality and achieve energy conservation and emission reduction is particularly important.

[0003] Traditional fresh air systems have been on the market for many years. While they have met people's needs for indoor air exchange to some extent, their limitations are becoming increasingly apparent. Firstly, traditional fresh air systems are inefficient in terms of energy utilization, often relying on electricity or other traditional energy sources and lacking effective utilization of renewable energy. Secondly, traditional fresh air systems often rely on simple filtration devices for air purification, making it difficult to effectively remove bacteria, viruses, and other microorganisms from the air. Furthermore, traditional fresh air systems also suffer from low levels of intelligence, insufficient heat recovery capabilities, and high maintenance costs.

[0004] In view of this, we will study and improve the existing problems to provide a building energy-saving fresh air handling device to solve the current problems. The aim is to solve the problems and improve the practical value through this technology. Summary of the Invention

[0005] The present invention aims to solve one of the technical problems existing in the prior art or related technologies.

[0006] Therefore, the technical solution adopted by the present invention is: a building energy-saving fresh air handling device, comprising: PV modules are used to convert solar energy into electrical energy to power the system or the cooling system. The PT module is used to absorb solar energy and convert it into heat energy to heat fresh air. The PF module includes a light collection board and an ultraviolet sterilization chamber. The light collection board is set on the top surface of the ultraviolet sterilization chamber to improve light capture efficiency and guide the filtered light into the sterilization chamber. The ultraviolet sterilization chamber concentrates ultraviolet light to perform efficient sterilization treatment on fresh air. The self-cleaning filter has a photocatalytic coating on its surface, which uses ultraviolet light to decompose organic pollutants and dust. The energy storage system, equipped with an inverter and energy storage units, converts and stores excess electrical energy from the PV modules. The intelligent control system, including a sensor network, an automatic adjustment system, and a user interface, is used to monitor air quality, humidity, and UV intensity, and adjust the system's operating status in real time. The fresh air system includes an air circulation system, an air exchange module, and a dehumidification system, which form a complete air flow path to ensure that the airflow passes through the ultraviolet sterilization chamber, the self-cleaning filter, and the dehumidification system in sequence to achieve the best air treatment effect. The dehumidification system includes a moisture-absorbing wheel and a regeneration device, which absorbs moisture in the air through moisture-absorbing materials and discharges it outside the system to control the air humidity.

[0007] In a preferred embodiment, the present invention can be further configured such that the PV module includes a high-efficiency photovoltaic panel, and distributes electrical energy to the fresh air system and the cooling system through a power management system.

[0008] In a preferred embodiment, the present invention can be further configured such that the PT module includes a high-efficiency solar thermal plate, which dynamically adjusts the heat output through a thermal energy management system and regulates the fresh air heating effect according to changes in indoor and outdoor temperatures.

[0009] In a preferred embodiment, the present invention can be further configured as follows: the light collection plate in the PF module adopts a bucket-shaped structure and is arranged on the top surface of the ultraviolet sterilization chamber to improve light capture efficiency; the ultraviolet sterilization chamber is equipped with UV-LED lamps and several airflow guide plates; the surface of the airflow guide plates is coated with a photocatalytic coating for airflow sterilization in an ultraviolet environment; the PF module performs light capture and filtration; and through the synergistic effect of the photocatalytic coating and ultraviolet light, a highly efficient air sterilization effect is achieved, providing a highly efficient, energy-saving, and easy-to-maintain air treatment solution.

[0010] In a preferred embodiment, the present invention can be further configured such that the bottom surfaces of the PV module, PT module and PF module are all equipped with a light tracking system to adjust their light tracking angle and improve light energy utilization.

[0011] In a preferred embodiment, the present invention can be further configured as follows: the self-cleaning filter is used for airflow filtration and cleaning, and is equipped with a UV-LED lamp and a photocatalytic material uniformly coated on the surface of each filter layer. It uses ultraviolet light for self-cleaning and is designed with a simple maintenance and replacement mechanism. The photocatalytic material generates strong oxidizing free radicals under the irradiation of the UV-LED lamp, which can effectively decompose and kill captured pollutants and microorganisms, maintaining the filter's high-efficiency filtration and sterilization.

[0012] In a preferred embodiment, the present invention can be further configured such that: the moisture-absorbing wheel is made of a high-efficiency moisture-absorbing material, such as silica gel or zeolite, and the moisture-absorbing wheel is heated and regenerated by the heating function of the regeneration device, so that the absorbed moisture is discharged out of the system and its moisture-absorbing capacity is restored. The use of high-efficiency moisture-absorbing materials such as silica gel or zeolite has a large moisture absorption capacity and a fast moisture absorption speed, which can significantly reduce the humidity in the air in a short time and keep the indoor environment dry and comfortable.

[0013] In a preferred embodiment, the present invention can be further configured such that: the sensor network in the intelligent control system includes air quality, humidity, and ultraviolet sensors; the control algorithm automatically adjusts the operating status of the ultraviolet sterilization module, the moisture-absorbing wheel, and the fan based on the sensor data; the user interface displays air quality, humidity, system operating status, and historical data; and the intelligent control system achieves efficient management and optimized control of air quality, humidity, and ultraviolet sterilization modules, providing users with a healthier and more comfortable indoor environment.

[0014] The beneficial effects achieved by this invention are as follows: 1. In this invention, by comprehensively utilizing photovoltaic, photothermal, and ultraviolet light in ambient light and applying high-efficiency photovoltaic panels, the device can directly convert solar energy into electrical energy, providing green power for the operation of the entire system and significantly reducing dependence on the traditional power grid. The photothermal module efficiently converts solar energy into heat energy for preheating or heating fresh air, improving energy utilization efficiency. Ambient light is filtered by the light collection panel, and the fresh air is efficiently sterilized by ambient ultraviolet light, effectively removing bacteria and viruses in the air and ensuring clean and healthy indoor air.

[0015] 2. In this invention, by integrating high-efficiency photovoltaic panels, solar thermal panels, and direct filtration of solar energy, the device can fully utilize solar energy to convert electrical energy into thermal energy. This not only provides power for the system's own operation but also reduces dependence on traditional energy sources, achieving the goal of energy conservation and emission reduction. At the same time, the intelligent control system automatically adjusts the operating status of each module according to real-time environmental parameters, ensuring the high efficiency and precision of air treatment and further improving energy utilization efficiency.

[0016] 3. In this invention, the combination of an ultraviolet sterilization chamber and a self-cleaning filter effectively removes harmful microorganisms such as bacteria and viruses from the fresh air. Furthermore, the synergistic effect of the photocatalytic coating and UV-LED lamps achieves a self-cleaning function, reducing maintenance costs. In addition, the dehumidification system uses highly efficient moisture-absorbing materials and a regeneration device to effectively control indoor humidity and improve the comfort of the living environment. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present invention; Figure 2 This is a schematic diagram of the intelligent control system structure according to an embodiment of the present invention; Figure 3 This is a simplified structural diagram of an ultraviolet sterilization chamber according to an embodiment of the present invention. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0019] It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the invention.

[0020] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing a building energy-saving fresh air handling device.

[0021] Combination Figures 1-3 As shown, the present invention provides a building energy-saving fresh air handling device, comprising: PV modules are used to convert solar energy into electrical energy to power the system or the cooling system. The PT module is used to absorb solar energy and convert it into heat energy to heat fresh air. The PF module includes a light collection board and an ultraviolet sterilization chamber. The light collection board is set on the top surface of the ultraviolet sterilization chamber to improve light capture efficiency and guide the filtered light into the sterilization chamber. The ultraviolet sterilization chamber concentrates ultraviolet light to perform efficient sterilization treatment on fresh air. The self-cleaning filter has a photocatalytic coating on its surface, which uses ultraviolet light to decompose organic pollutants and dust. The energy storage system, equipped with an inverter and energy storage units, converts and stores excess electrical energy from the PV modules. The intelligent control system, including a sensor network, an automatic adjustment system, and a user interface, is used to monitor air quality, humidity, and UV intensity, and adjust the system's operating status in real time. The fresh air system includes an air circulation system, an air exchange module, and a dehumidification system, which form a complete air flow path to ensure that the airflow passes through the ultraviolet sterilization chamber, the self-cleaning filter, and the dehumidification system in sequence to achieve the best air treatment effect. The dehumidification system includes a moisture-absorbing wheel and a regeneration device, which absorbs moisture in the air through moisture-absorbing materials and discharges it outside the system to control the air humidity.

[0022] In this embodiment, the PV module includes a high-efficiency photovoltaic panel, which distributes electrical energy to the fresh air system and the cooling system through a power management system.

[0023] In this embodiment, the PT module includes a high-efficiency solar thermal plate, which dynamically adjusts the heat output through a thermal energy management system to regulate the fresh air heating effect according to changes in indoor and outdoor temperatures.

[0024] In this embodiment, the light collection plate in the PF module adopts a bucket-shaped structure and is arranged on the top surface of the ultraviolet sterilization chamber to improve light capture efficiency. The ultraviolet sterilization chamber is equipped with UV-LED lamps and several airflow guide plates. The surface of the airflow guide plates is coated with a photocatalytic coating for airflow sterilization in an ultraviolet environment.

[0025] Specifically, the light-collecting panel features a funnel-shaped structure that focuses and guides more light into the ultraviolet sterilization chamber. This funnel shape increases the angle of incidence, concentrating more light within the chamber and improving light capture efficiency. The panel's surface undergoes a special treatment, providing high reflectivity and anti-fouling properties to ensure maximum light utilization.

[0026] UV sterilization chamber setup: The UV sterilization chamber is equipped with UV-LED lamps, which emit ultraviolet light of a specific wavelength to kill bacteria and viruses in the air.

[0027] UV-LED lamps are evenly distributed inside the sterilization chamber to ensure that the air inside the entire chamber is irradiated by ultraviolet light, thereby achieving comprehensive sterilization.

[0028] Airflow guide vane configuration: Several airflow guide vanes are installed inside the UV sterilization chamber to guide and distribute airflow. The design of the airflow guide vanes reduces the airflow rate and increases the residence time of air in the sterilization chamber, thereby improving the sterilization effect.

[0029] The surface of the airflow guide plate is uniformly coated with a photocatalytic coating, such as titanium dioxide (TiO2). Under ultraviolet irradiation, the photocatalytic coating can generate strong oxidizing free radicals (such as hydroxyl radicals and superoxide anion radicals), which can effectively decompose and kill harmful microorganisms and pollutants in the air.

[0030] System Operation: When the system is running, air enters the ultraviolet sterilization chamber through the PF module. The light-concentrating plate focuses the light, and the UV-LED lamps emit ultraviolet light, which irradiates the airflow guide plate and the photocatalytic coating, exciting the photocatalytic coating to generate free radicals. As the air flows through the ultraviolet sterilization chamber, bacteria and viruses are decomposed and killed by the free radicals, ensuring that the outgoing air is clean.

[0031] In this embodiment, the bottom surfaces of the PV module, PT module and PF module are all equipped with a light tracking system to adjust their light tracking angle and improve light energy utilization.

[0032] Specifically, the light sensor first detects the incident angle and intensity of sunlight and transmits the data to the control system. The control system calculates the optimal tracking angle using an algorithm and sends a control signal to the tracking mechanism. Upon receiving the signal, the tracking mechanism activates an electric motor to adjust the module's angle, ensuring it is always aligned with the sun to maximize light energy absorption.

[0033] In this embodiment, the self-cleaning filter is used for filtering and cleaning airflow. It is equipped with a UV-LED lamp and each filter layer is uniformly coated with a photocatalytic material. It uses ultraviolet light for self-cleaning and is designed with a simple maintenance and replacement mechanism.

[0034] Specifically, the self-cleaning filter includes a multi-layer filtration structure, with each layer of filter media uniformly coated with a photocatalytic material, such as titanium dioxide (TiO2). An internal UV-LED lamp is installed, emitting ultraviolet light of a specific wavelength to activate the photocatalytic material.

[0035] When air passes through the filter, pollutants, bacteria, and viruses are captured by the filter layer. UV-LED lamps continuously irradiate the photocatalytic material on the filter layer surface, exciting it to generate highly oxidizing free radicals (such as hydroxyl radicals and superoxide anion radicals). These free radicals effectively decompose and kill the captured pollutants and microorganisms, achieving a self-cleaning effect and maintaining the filter's high-efficiency filtration performance.

[0036] The filter is designed for easy maintenance and replacement. It is housed in an easily removable frame, allowing users to easily remove it for inspection and replacement. The UV-LED lamp has a long lifespan and low energy consumption, eliminating the need for frequent replacements and significantly reducing maintenance costs.

[0037] In this embodiment, the moisture-absorbing wheel is made of a high-efficiency moisture-absorbing material, such as silica gel or zeolite. The moisture-absorbing wheel is heated and regenerated by the heating function of the regeneration device, so that the absorbed moisture is discharged out of the system and its moisture-absorbing capacity is restored.

[0038] Specifically, the moisture-absorbing rotor undergoes periodic heating and regeneration via a regeneration device to restore its moisture-absorbing capacity. The regeneration device includes an electric heater or a hot airflow system. When the moisture-absorbing rotor reaches its moisture saturation state, the regeneration device is activated to heat the rotor, causing the adsorbed moisture to be released from the material and expelled from the system through an exhaust system. The heating temperature and regeneration time are set according to the characteristics of the moisture-absorbing material to ensure complete regeneration without damaging its structure.

[0039] The entire moisture-absorbing rotor system is managed by a controller that automatically starts and stops the regeneration process based on data from the humidity sensor. During regeneration, the system can temporarily switch to a standby moisture-absorbing rotor to ensure continuous humidity control.

[0040] In this embodiment, the sensor network in the intelligent control system includes air quality, humidity, and ultraviolet sensors. The control algorithm automatically adjusts the operating status of the ultraviolet sterilization module, the desiccant wheel, and the fan based on the sensor data. The user interface displays air quality, humidity, system operating status, and historical data.

[0041] Specifically, air quality sensors are used to monitor the concentration of pollutants in the air, such as PM2.5, PM10, and formaldehyde; humidity sensors are used to measure the humidity level of the air; and ultraviolet sensors are used to detect the intensity of ultraviolet radiation.

[0042] The control algorithm automatically adjusts the operating status of the ultraviolet sterilization module, the moisture-absorbing impeller, and the fan by acquiring sensor data in real time. When the air quality sensor detects an increase in the concentration of pollutants in the air, the control algorithm increases the workload of the ultraviolet sterilization module to improve the sterilization efficiency. When the humidity sensor detects high air humidity, the control algorithm activates or enhances the operation of the moisture-absorbing impeller to reduce the air humidity. When the ultraviolet sensor detects low ultraviolet intensity, the control algorithm adjusts the operating status of the ultraviolet sterilization module to ensure the sterilization effect.

[0043] The user interface displays air quality, humidity, system operating status, and historical data via a screen or mobile application. Users can intuitively view the current air quality index, humidity level, and the operating status of the UV sterilization module, desiccant impeller, and fan. Simultaneously, the historical data function allows users to view past air quality and humidity trends and system operating records, facilitating analysis and decision-making.

[0044] Working principle and usage process of this invention: This building's energy-saving fresh air handling unit works primarily by fully utilizing photovoltaic, solar thermal, and ultraviolet light, combined with advanced air purification technology and an intelligent control system, to achieve efficient indoor air purification, energy conservation and emission reduction, and intelligent management. The specific principles are as follows: Photovoltaic energy conversion: The device integrates high-efficiency photovoltaic panels on the top, which can directly convert solar energy into electrical energy, providing green power for the operation of the entire system.

[0045] The electricity generated by the photovoltaic panels is prioritized for use by various components of the fresh air system, and the remaining electricity can be stored in the built-in battery for unforeseen needs.

[0046] Solar thermal energy recovery: Solar thermal panels absorb solar energy and convert it into heat energy, which is used for preheating or heating fresh air, thereby improving energy utilization efficiency.

[0047] The heat recovery device further recovers the heat and cold from the exhaust air, reducing energy loss and realizing the recycling of energy.

[0048] Air purification and sterilization: Fresh air enters the device through a self-cleaning filter, removing large particles, dust, and other pollutants.

[0049] The ultraviolet sterilization chamber uses ultraviolet light emitted by high-intensity UV-LED lamps to effectively kill bacteria, viruses and other microorganisms in the fresh air.

[0050] The photocatalytic coating on the surface of the self-cleaning filter decomposes organic pollutants and dust adhering to the filter screen under ultraviolet light, thus achieving a self-cleaning function.

[0051] Intelligent control and management: The device has a built-in intelligent control system that monitors parameters such as air quality, humidity, temperature, and ultraviolet intensity in real time through a sensor network.

[0052] Based on monitoring data, the intelligent control system automatically adjusts the operating status of components such as the ultraviolet sterilization module, moisture-absorbing wheel, and fan to achieve refined management.

[0053] The system supports multiple operating modes (such as automatic mode, manual mode, etc.), and users can choose according to their actual needs.

[0054] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0055] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A building energy-saving fresh air handling device, characterized in that, include: PV modules are used to convert solar energy into electrical energy to power the system or the cooling system. The PT module is used to absorb solar energy and convert it into heat energy to heat fresh air. The PF module includes a light collection board and an ultraviolet sterilization chamber. The light collection board is set on the top surface of the ultraviolet sterilization chamber to improve light capture efficiency and guide the filtered light into the sterilization chamber. The ultraviolet sterilization chamber concentrates ultraviolet light to perform efficient sterilization treatment on fresh air. The self-cleaning filter has a photocatalytic coating on its surface, which uses ultraviolet light to decompose organic pollutants and dust. The energy storage system, equipped with an inverter and energy storage units, converts and stores excess electrical energy from the PV modules. The intelligent control system, including a sensor network, an automatic adjustment system, and a user interface, is used to monitor air quality, humidity, and UV intensity, and adjust the system's operating status in real time. The fresh air system includes an air circulation system, an air exchange module, and a dehumidification system, which form a complete air flow path to ensure that the airflow passes through the ultraviolet sterilization chamber, the self-cleaning filter, and the dehumidification system in sequence to achieve the best air treatment effect. The dehumidification system includes a moisture-absorbing wheel and a regeneration device, which absorbs moisture in the air through moisture-absorbing materials and discharges it outside the system to control the air humidity.

2. The building energy-saving fresh air handling device according to claim 1, characterized in that, The PV module includes high-efficiency photovoltaic panels, which distribute electrical energy to the fresh air system and the cooling system through a power management system.

3. The building energy-saving fresh air handling device according to claim 1, characterized in that, The PT module includes a high-efficiency solar thermal plate, which dynamically adjusts the heat output through a thermal energy management system and regulates the fresh air heating effect according to changes in indoor and outdoor temperatures.

4. The building energy-saving fresh air handling device according to claim 1, characterized in that, The light collection plate in the PF module adopts a bucket-shaped structure and is arranged on the top surface of the ultraviolet sterilization chamber to improve light capture efficiency. The ultraviolet sterilization chamber is equipped with UV-LED lamps and several airflow guide plates. The surface of the airflow guide plates is coated with a photocatalytic coating for airflow sterilization in an ultraviolet environment.

5. The building energy-saving fresh air handling device according to claim 1, characterized in that, The bottom surfaces of the PV module, PT module, and PF module are all equipped with a light tracking system to adjust their light-tracking angle and improve light energy utilization.

6. The building energy-saving fresh air handling device according to claim 1, characterized in that, The self-cleaning filter is used for airflow filtration and cleaning. It is equipped with a UV-LED lamp and each filter layer is uniformly coated with photocatalytic material. It uses ultraviolet light for self-cleaning and is designed with a simple maintenance and replacement mechanism.

7. The building energy-saving fresh air handling device according to claim 1, characterized in that, The moisture-absorbing wheel is made of a high-efficiency moisture-absorbing material, such as silica gel or zeolite. The moisture-absorbing wheel is heated and regenerated by the heating function of the regeneration device, which discharges the absorbed moisture out of the system and restores its moisture-absorbing capacity.

8. The building energy-saving fresh air handling device according to claim 1, characterized in that, The sensor network in the intelligent control system includes air quality, humidity, and ultraviolet sensors. The control algorithm automatically adjusts the operating status of the ultraviolet sterilization module, the desiccant wheel, and the fan based on the sensor data. The user interface displays air quality, humidity, system operating status, and historical data.