TWI902355B - Mountable gas exchange device - Google Patents

Abstract

A mountable gas exchange device applied for an indoor air purification network system is disclosed, and comprises: a gas detector; a gas exchange main body mounted in the indoor area, including an air guide fan, a filtering component, a drive controller, an air duct, a recirculation outlet, and a filtering airway. The air duct has an air intake port, and the recirculation outlet is equipped with a gas exchange fan. The air guide fan and the filtering component are located in the filtering airway. The gas detector is electrically connected to the drive controller. The gas detector controls the operation of the air guide fan and the gas exchange fan via IoT communication, allowing outdoor gas to enter the indoor area through the filtering airway. Simultaneously, indoor gas is recirculated through the recirculation outlet back into the filtering airway for multiple filtration cycles, so as to achieve the advantage of purifying air pollution.

Description

Embedded gas exchange device

This invention relates to a wall-mounted gas exchange device, particularly a wall-mounted gas exchange device for near-zero air pollution detection and purification in indoor spaces.

Particulate matter refers to solid particles or liquid droplets contained in the gas. Due to their extremely fine size, they can easily enter the lungs through the nasal hairs in the nasal cavity, causing lung inflammation, asthma, or cardiovascular diseases. If other pollutants adhere to particulate matter, the harm to the respiratory system will be further aggravated. In recent years, air pollution problems have become increasingly serious, especially the concentration of fine particulate matter (such as PM2.5), which is often too high. The monitoring of particulate matter concentration has gradually gained attention. However, because gas flows unstably with wind direction and volume, and most current gas quality monitoring stations for detecting particulate matter are fixed-point, it is impossible to confirm the current concentration of particulate matter in the surrounding area.

Furthermore, modern people are paying increasing attention to the quality of the air around them. For example, gases such as carbon monoxide, carbon dioxide, volatile organic compounds (VOCs), PM2.5, nitrogen oxides, and sulfur oxides, as well as particulate matter contained within these gases, can all affect human health when exposed to the environment, and in severe cases, even endanger life. Therefore, the quality of environmental air quality has attracted the attention of various countries, and how to detect air quality to avoid and stay away from areas with poor air quality is a pressing issue.

Using a gas sensor to detect ambient gases is a feasible way to determine the quality of gases. If it can also provide real-time detection information to warn people in the environment so that they can take precautions or escape in time, thus avoiding harm to their health from harmful gases, then using a gas sensor to detect the surrounding environment is an excellent application.

Furthermore, indoor air quality is not easy to control. In addition to outdoor air quality, indoor air conditioning conditions and pollution sources are the main factors affecting indoor air quality. It can intelligently and quickly detect indoor air pollution sources in various indoor areas, effectively remove indoor air pollution to form a clean and safe breathing environment, and monitor indoor air quality anytime and anywhere.

Furthermore, indoor air quality is not easy to control. In addition to outdoor air quality, indoor air conditioning conditions and pollution sources are the main factors affecting indoor air quality. A system that can intelligently and quickly detect indoor air pollution sources in various areas can effectively remove indoor pollutants, creating a clean and safe breathing environment, and can monitor indoor air quality anytime, anywhere. Of course, if the indoor environment can strictly control the concentration of airborne particulate matter according to "clean room" standards, striving to avoid the introduction, generation, and retention of particulate matter, and controlling its temperature and humidity within the required range, it can achieve the clean room requirements for a safe breathing environment.

In view of this, how to detect indoor air quality in indoor spaces and how to solve the problem of air pollution so that indoor spaces can meet the cleanliness requirements of clean rooms and avoid the health effects and harm caused by harmful gases in the environment, this invention provides an embedded gas exchange device, which is the main research topic of this invention.

The primary objective of this invention is to provide a recessed gas exchange device for near-zero air pollution detection and purification in indoor spaces. It utilizes an internal design that incorporates at least one gas detector, at least one fan, at least one filter, a drive controller, and a flow channel, eliminating the need for piping. The gas detector and drive controller are electrically connected, forming an intelligent linkage system with an indoor air purification network system's cloud computing service device. In this system, the gas detector receives information from the indoor air purification network mechanism via the Internet of Things (IoT). The system's network-connected cloud computing service device sends a control command to activate the drive controller, which then starts the operation of the duct fan and gas exchange fan. This provides an outdoor air intake channel, allowing air to pass through the filtration components and enter the indoor area. The air undergoes multiple cycles of filtration and temperature regulation for ventilation. Simultaneously, during ventilation, the indoor area maintains a positive pressure above 0 Pa to prevent outdoor air pollution from entering. This allows for the calculation of indoor temperature, indoor carbon dioxide (CO2) levels, and outdoor carbon dioxide levels. ₂ ) The difference is close to zero, and the PM2.5 and other air pollution in indoor area A are purified in real time to achieve the cleanliness treatment of the cleanroom level with the air pollution purification close to zero. At the same time, the air pollution in the indoor space is detected and compared with the ambient air quality status by the intelligent linkage system. The system controls the fan to adjust the airflow according to the air quality, effectively adjusting the energy-saving efficiency of the embedded gas exchange device and the airflow noise close to the zero specification value, achieving the ultimate balance of energy saving and power saving.

To achieve the above objectives, the present invention provides a recessed gas exchange device for use in an indoor air purification network system, comprising: at least one gas detector for detecting air pollution information and gas temperature and humidity information in an indoor area, wherein the indoor area is provided with at least one air intake and at least one air exhaust; a gas exchange main body, recessed in the indoor area, comprising at least one fan, at least one filter assembly, a drive controller, and a flow channel, wherein the flow channel has an air intake corresponding to an outdoor area, a recirculating air inlet connecting to an indoor area, and a filtered air duct connecting to an indoor area, and the recirculating air inlet is provided with a gas exchange... The air exchange fan, the duct fan, and the filter assembly are installed in the filtration duct, and the gas detector is electrically connected to the drive controller. The gas detector receives a control command via Internet of Things communication and sends it to the drive controller to start the operation of the duct fan and the gas exchange fan. This allows air from the outdoor area to be introduced into the filtration duct, filtered by the filter assembly, and then enter the indoor area. Simultaneously, air from the indoor area re-enters the filtration duct through the recirculation return air inlet, causing air pollution to circulate and be filtered multiple times by the filter assembly. Temperature is also adjusted to achieve ventilation, resulting in a near-zero cleanroom level of cleanliness.

Embodiments embodying the features and advantages of this invention will be described in detail in the following section. It should be understood that this invention can have various variations in different forms, all of which remain within the scope of this invention, and the descriptions and illustrations herein are for illustrative purposes only, and not intended to limit the invention.

Please refer to Figures 1A and 1B. This invention is a recessed gas exchange device applied to an indoor air purification network system, comprising: at least one gas detector 1 to detect air pollution information and gas temperature and humidity information in an indoor area A, and the indoor area A is provided with at least one air inlet C1 and at least one air outlet C2; and a gas exchange main unit. Body 2, embedded in indoor area A, includes at least one fan 21, at least one filter assembly 22, a drive controller 23, and a flow channel 24. The flow channel 24 has an air intake vent 24a corresponding to outdoor area B, a recirculating air vent 24b connecting to indoor area A, and a filtering air duct 24c connecting to indoor area A. The recirculating air vent 24b is equipped with a gas exchange fan 25. The fan 21 and filter assembly 22 are located below the filtering air duct 24c, and a gas detector 1 is electrically connected to the drive controller 23. The gas detector 1 receives a control command via Internet of Things communication and sends it to the drive controller 23 to control the drive controller 23 to start the fan 21 and the gas exchange fan 25. The system operates by introducing air from outdoor area B into the filtering duct 24c, filtering it through the filtering module 22, and then into indoor area A. Simultaneously, air from indoor area A re-enters the filtering duct 24c through the recirculating return air vent 24b, drawing out pollutants and circulating them through the filtering module 22 multiple times. Temperature regulation is also implemented for ventilation, achieving a near-zero cleanroom level of cleanliness.

It is worth noting that the embedded gas exchange device is used for near-zero air pollution detection and purification in indoor space A. Its design eliminates the need for piping in indoor space A. During operation, it maintains a positive pressure above 0 Pa in indoor space A, preventing air pollution from outdoor space B from entering. Furthermore, the longitudinal parallel isolation between the airflow channel 24 and the filter duct 24c effectively suppresses the backflow effect of the circulating filtered gas, achieving near-zero air pollution purification in a cleanroom. Indoor space A requires a cleanroom class of ZAPClean room 1-12; the air pollution information is carbon dioxide (CO2 _). According to the air pollution data, the purpose of ventilation is to achieve a carbon dioxide ( _CO2 ) difference between indoor area A and outdoor area B approaching zero; the embedded gas exchange device can be a fresh air unit, a total heat exchanger, or a heating, ventilation and air conditioning (HVAC) unit, but is not limited to these.

Please refer to Figure 1B. This invention provides a wall-mounted gas exchange device applied to an indoor air purification network system. The indoor air purification network system includes: a plurality of gas detectors 1, deployed in an indoor area A and an outdoor area B to detect air pollution information and gas temperature and humidity information; the indoor area A is provided with at least one air inlet C1 and at least one air outlet C2; and includes at least one... The gas molecule control hardware includes at least one wall-mounted gas exchange device corresponding to the air intake port C1, at least one air purifier 4, at least one fan filter unit 5, at least one exhaust fan device corresponding to the exhaust port C2, at least one exhaust fan system corresponding to the exhaust port C2, at least one air conditioning unit 8, at least one vacuum cleaner 9, and at least one dehumidifier 10, installed in indoor area A. In this system, each gas molecule control hardware device is internally equipped with at least one gas detector 1, at least one fan 21, at least one filter assembly 22, and at least one drive controller 23. The gas detector 1 is electrically connected to the drive controller 23. The system also includes a networked cloud computing service device 3, which receives air pollution information and gas data from indoor area A and outdoor area B detected by the gas detector 1 via Internet of Things communication. Temperature and humidity information is stored to form an air pollution big data database, and a control command is intelligently selected and sent to the gas detector 1 to receive it, so as to control the drive controller 23 to start the operation of the duct fan 21. This enables the indoor area A to be ventilated, temperature and humidity regulated, and air pollution to be repeatedly purified through the filter assembly 22 to achieve near-zero cleanroom treatment. The gas detector 1 also transmits air pollution information and gas temperature and humidity information in the indoor area A to the outside.

Of course, the gas detector 1 mentioned above is deployed in indoor area A and outdoor area B to detect air pollution information and gas temperature and humidity information, and outputs the air pollution information and gas temperature and humidity information through Internet of Things (IoT) communication. It is worth noting that the gas detector 1 has a gas detection module installed inside. Please refer to Figures 3A and 3B. The gas detector 1 can be configured with an external power terminal, which can be directly plugged into the power interface in the indoor area A to start the operation and detect air pollution. Alternatively, as shown in Figure 3C, it can be a gas detection module without an external power terminal, which is directly mounted on the gas molecule control hardware device (wall-mounted gas exchange device, air purifier 4, fan filter unit 5, exhaust device 6, smoke exhaust system 7, air conditioning device 8, vacuum cleaner 9 and dehumidifier 10) and electrically connected. It receives a control command to control the power supply of the gas molecule control hardware device to start the operation of the guide fan 21.

The aforementioned Internet of Things (IoT) communication refers to a collective network connecting various devices and the technology that enables communication between devices and the cloud, as well as between devices themselves. This IoT communication can be a wired communication, allowing connection to the networked cloud computing service device 3 via a wired line. Alternatively, it can be a wireless communication, allowing wireless communication with the networked cloud computing service device 3, and this wireless communication can be one of a Wi-Fi module, a Bluetooth module, a wireless radio frequency identification (RFI) module, or a near-field communication (NFC) module.

It is worth noting that the air pollution mentioned above refers to one or a combination of particulate matter, carbon monoxide, carbon dioxide, ozone, sulfur dioxide, nitrogen dioxide, lead, total volatile organic compounds, formaldehyde, bacteria, fungi, and viruses.

Of course, each gas detector 1 monitors the air quality in indoor space A at any time and at any place. At the same time, it detects air pollution information in indoor space A and transmits it to the air pollution big data database of the networked cloud computing service device 3. It intelligently compares the environmental air quality status and controls the guide fans 21 of the gas molecule control hardware equipment in each area to adjust the airflow according to the air quality, effectively controlling the energy-saving benefits of the operation of the gas molecule control hardware equipment.

To understand the specific implementation of the embedded gas exchange device provided by this invention, the following is a detailed description of the gas detection module structure of the gas detector 1 of this invention. Please refer to Figures 3A to 11. The gas detection module includes: a control circuit board 11, a gas detection main body 12, a microprocessor 13, and a communicator 14. The gas detection main body 12, the microprocessor 13, and the communicator 14 are packaged on the control circuit board 11 and formed as a whole and are electrically connected to each other. The microprocessor 13 and the communicator 14 are mounted on the control circuit board 11. The microprocessor 13 controls the drive signal of the gas detection main body 12 to start the detection operation. In this way, the gas detection main body 12 detects air pollution and outputs a detection information. The microprocessor 13 processes the information and outputs it to the communicator 14, which transmits it to the Internet cloud computing service device 3 through Internet of Things (IoT) communication.

Referring again to Figures 4A to 9A, the gas detection main body 12 includes a base 121, a piezoelectric actuator 122, a drive circuit board 123, a laser component 124, a particle sensor 125, and an outer cover 126. The base 121 has a first surface 1211, a second surface 1212, a laser placement area 1213, an air inlet groove 1214, an air guide component support area 1215, and an air outlet groove 1216. The first surface 1211 and the second surface 1212 are two surfaces arranged opposite to each other. The laser placement area 1213 is formed by hollowing out from the first surface 1211 towards the second surface 1212. Additionally, the outer cover 126 covers the base 121 and has a side plate 1261, which has an air inlet 1261a and an air outlet 1261b. An air inlet groove 1214 is recessed from the second surface 1212 and is adjacent to the laser mounting area 1213. The air inlet groove 1214 has an air inlet 1214a connected to the outside of the base 121 and corresponding to the air outlet 1216a of the outer cover 126. The two side walls of the air inlet groove 1214 penetrate the light-transmitting window 1214b of the piezoelectric actuator 122 and communicate with the laser mounting area 1213. Therefore, the first surface 1211 of the base 121 is covered by the outer cover 126, and the second surface 1212 is covered by the drive circuit board 123, causing the air intake groove 1214 to define an air intake path. The air guide component bearing area 1215 is formed by a recess in the second surface 1212 and connects to the air intake groove 1214. It also has a vent 1215a penetrating its bottom surface, and each of the four corners of the air guide component bearing area 1215 has a positioning protrusion 1215b. The aforementioned air outlet groove 1216 is provided with an air outlet 1216a, which corresponds to the air outlet frame opening 1261b of the outer cover 126. The vent groove 1216 includes a first section 1216b formed by the recess of the first surface 1211 into the vertical projection area of the air guide component support area 1215, and a second section 1216c formed by hollowing out from the first surface 1211 to the second surface 1212 in the area extending from the vertical projection area of the air guide component support area 1215. The first section 1216b and the second section 1216c are connected to form a step, and the first section 1216b of the vent groove 1216 communicates with the vent hole 1215a of the air guide component support area 1215, and the second section 1216c of the vent groove 1216 communicates with the vent outlet 1216a. Therefore, when the first surface 1211 of the base 121 is covered by the outer cover 126 and the second surface 1212 is covered by the drive circuit board 123, the vent groove 1216 and the drive circuit board 123 together define an vent path.

The aforementioned laser component 124 and particle sensor 125 are both mounted on the driver circuit board 123 and located within the base 121. To clearly illustrate the positions of the laser component 124 and particle sensor 125 relative to the base 121, the driver circuit board 123 is omitted. The laser component 124 is housed within the laser mounting area 1213 of the base 121, and the particle sensor 125 is housed within the air intake groove 1214 of the base 121 and aligned with the laser component 124. Furthermore, the laser component 124 corresponds to a light-transmitting window 1214b, through which the laser light emitted by the laser component 124 passes, illuminating the air intake groove 1214. The beam path emitted by the laser component 124 passes through the light-transmitting window 1214b and forms an orthogonal direction with the air intake groove 1214. The beam emitted by the laser component 124 enters the air intake groove 1214 through the light-transmitting window 1214b, illuminating the detection data in the gas in the air intake groove 1214. When the beam comes into contact with the gas, it scatters and generates a projected light spot, positioning the particle sensor 125 in its orthogonal direction and receiving the projected light spot generated by the scattering to perform calculations to obtain the gas detection data.

The piezoelectric actuator 122 is housed in the square air-conducting component receiving area 1215 of the base 121. Furthermore, the air-conducting component receiving area 1215 communicates with the air inlet groove 1214. When the piezoelectric actuator 122 is actuated, gas is drawn from the air inlet groove 1214 into the piezoelectric actuator 122, and the gas is supplied through the vent hole 1215a of the air-conducting component receiving area 1215 into the air outlet groove 1216. The drive circuit board 123 is enclosed on the second surface 1212 of the base 121. The laser component 124 is disposed on the drive circuit board 123 and electrically connected. The particle sensor 125 is also disposed on the drive circuit board 123 and electrically connected. When the outer cover 126 covers the base 121, the air outlet 1216a corresponds to the air inlet 1214a of the base 121, and the air outlet frame 1261b corresponds to the air outlet 1216a of the base 121.

The piezoelectric actuator 122 includes an air jet plate 1221, a cavity frame 1222, an actuator 1223, an insulating frame 1224, and a conductive frame 1225. The air jet plate 1221 is made of a flexible material and has a suspension plate 1221a and a hollow hole 1221b. The suspension plate 1221a is a bent, vibrating sheet-like structure, the shape and size of which correspond to the inner edge of the air-conducting component's load-bearing area 1215. The hollow hole 1221b penetrates the center of the suspension plate 1221a, allowing gas to flow through. In a preferred embodiment of the invention, the shape of the suspension plate 1221a can be square, graphic, elliptical, triangular, or polygonal.

The aforementioned cavity frame 1222 is stacked on the jet orifice 1221, and its appearance corresponds to that of the jet orifice 1221. The actuator 1223 is stacked on the cavity frame 1222, and defines a resonant chamber 1226 between itself, the jet orifice 1221, and the suspension plate 1221a. The insulating frame 1224 is stacked on the actuator 1223, and its appearance is similar to that of the cavity frame 1222. A conductive frame 1225 is stacked on an insulating frame 1224, and its appearance is similar to that of the insulating frame 1224. The conductive frame 1225 has a conductive pin 1225a and a conductive electrode 1225b extending outward from the outer edge of the conductive pin 1225a, and the conductive electrode 1225b extending inward from the inner edge of the conductive frame 1225. Furthermore, the actuator 1223 further includes a piezoelectric carrier plate 1223a, an adjusting resonant plate 1223b, and a piezoelectric plate 1223c. The piezoelectric carrier plate 1223a is stacked on the cavity frame 1222. The adjusting resonant plate 1223b is stacked on the piezoelectric carrier plate 1223a. A piezoelectric plate 1223c is stacked on an adjusting resonant plate 1223b. Both the adjusting resonant plate 1223b and the piezoelectric plate 1223c are housed within an insulating frame 1224. The piezoelectric plate 1223c is electrically connected to the conductive plate 1225b of the conductive frame 1225. In a preferred embodiment of the invention, both the piezoelectric carrier plate 1223a and the adjusting resonant plate 1223b are made of conductive materials. The piezoelectric carrier board 1223a has a piezoelectric pin 1223d, and the piezoelectric pin 1223d and the conductive pin 1225a are connected to the drive circuit (not shown) on the drive circuit board 123 to receive drive signals (which may be drive frequency and drive voltage). The drive signal can be transmitted through the piezoelectric pin 1223d, the piezoelectric carrier board 1223a, and the modulation circuit. The resonant plate 1223b, piezoelectric plate 1223c, conductive electrode 1225b, conductive frame 1225, and conductive pin 1225a form a circuit. An insulating frame 1224 isolates the conductive frame 1225 from the actuator 1223 to prevent short circuits, allowing the drive signal to be transmitted to the piezoelectric plate 1223c. After receiving the drive signal, the piezoelectric plate 1223c deforms due to the piezoelectric effect, further driving the piezoelectric carrier plate 1223a and adjusting the resonant plate 1223b to produce reciprocating bending vibrations.

To further explain, the adjusting resonant plate 1223b is located between the piezoelectric plate 1223c and the piezoelectric carrier plate 1223a, acting as a buffer between the two, and can adjust the vibration frequency of the piezoelectric carrier plate 1223a. Basically, the thickness of the adjusting resonant plate 1223b is greater than that of the piezoelectric carrier plate 1223a, and the vibration frequency of the actuator 1223 is adjusted by changing the thickness of the adjusting resonant plate 1223b.

Please refer to Figures 7A, 7B, 8A, 8B, and 9A. The air jet 1221, cavity frame 1222, actuator 1223, insulating frame 1224, and conductive frame 1225 are stacked sequentially and positioned within the air-conducting component support area 1215. This causes the piezoelectric actuator 122 to be positioned within the air-conducting component support area 1215. The piezoelectric actuator 122 defines a gap 1221c between the suspension plate 1221a and the inner edge of the air-conducting component support area 1215, allowing gas to flow. An airflow chamber 1227 is formed between the air jet 1221 and the bottom surface of the air-conducting component support area 1215. The airflow chamber 1227 is connected to the resonant chamber 1226 between the actuator 1223, the airflow chamber 1221, and the suspension plate 1221a through the hollow hole 1221b in the air jet plate 1221. By making the vibration frequency of the gas in the resonant chamber 1226 close to that of the suspension plate 1221a, the resonant chamber 1226 and the suspension plate 1221a can generate a Helmholtz resonance effect, thereby improving the gas transmission efficiency. When the piezoelectric plate 1223c moves away from the bottom surface of the air-conducting component bearing area 1215, the piezoelectric plate 1223c drives the suspension plate 1221a of the air jet plate 1221 to move away from the bottom surface of the air-conducting component bearing area 1215, causing the volume of the airflow chamber 1227 to expand rapidly, the internal pressure drops and negative pressure is generated, attracting the gas outside the piezoelectric actuator 122 to flow in through the gap 1221c, and enter the resonant chamber 1226 through the hollow hole 1221b, increasing the air pressure in the resonant chamber 1226 and thus generating a pressure gradient. When the piezoelectric plate 1223c drives the suspension plate 1221a of the jet orifice 1221 to move toward the bottom surface of the air-conducting component bearing area 1215, the gas in the resonant chamber 1226 flows out rapidly through the hollow hole 1221b, squeezing the gas in the airflow chamber 1227, and causing the converged gas to be rapidly and in large quantities ejected from the vent 1215a of the air-conducting component bearing area 1215 in an ideal gas state close to Bernoulli's law.

By repeating the actions shown in Figures 9B and 9C, the piezoelectric plate 1223c vibrates reciprocally. According to the principle of inertia, the air pressure inside the resonant chamber 1226 after exhaust is lower than the equilibrium air pressure, which guides the gas to re-enter the resonant chamber 1226. In this way, the vibration frequency of the gas in the resonant chamber 1226 is controlled to be similar to the vibration frequency of the piezoelectric plate 1223c, so as to generate the Helmholtz resonance effect and realize the high-speed and large-volume transmission of gas. The gas enters through the air inlet 1214a of the outer cover 126, enters the air inlet groove 1214 of the base 121 through the air inlet 1214a, and flows to the position of the particle sensor 125. Furthermore, the continuous drive of the piezoelectric actuator 122 draws in gas from the intake path, facilitating rapid and stable intake of external gas. The gas passes above the particle sensor 125. At this time, the laser assembly 124 emits a beam that enters the intake groove 1214 through the light-transmitting window 1214b. The intake groove 1214 passes above the particle sensor 125. When the beam from the particle sensor 125 irradiates the suspended particles in the gas… When suspended particles are present, scattering phenomena and projected light spots are generated. When the particle sensor 125 receives the projected light spots generated by the scattering, it calculates to obtain information such as the particle size and concentration of suspended particles contained in the gas. The gas above the particle sensor 125 is also continuously driven by the piezoelectric actuator 122 and guided into the vent 1215a of the air guide component carrying area 1215 and into the exhaust channel 1216. Finally, after the gas enters the exhaust channel 1216, because the piezoelectric actuator 122 continuously delivers gas into the exhaust channel 1216, the gas in the exhaust channel 1216 is pushed and discharged to the outside through the exhaust port 1216a and the exhaust frame port 1261b.

The gas detector 1 of this invention can not only detect suspended particles in a gas, but also further detect the characteristics of the introduced gas, such as formaldehyde, ammonia, carbon monoxide, carbon dioxide, oxygen, ozone, etc. Therefore, the gas detector 1 of this invention further includes a gas sensor 127, which is positioned and electrically connected to the drive circuit board 123 and housed in the gas outlet groove 1216 to detect the characteristics of the introduced gas. The gas sensor 127 may be a volatile organic compound sensor, detecting carbon dioxide or total volatile organic compound gas information; the gas sensor 127 may be a formaldehyde sensor, detecting formaldehyde gas information; the gas sensor 127 may be a bacteria sensor, detecting bacteria or fungi information; the gas sensor 127 may be a virus sensor, detecting virus gas information; or the gas sensor 127 may be a temperature and humidity sensor, detecting gas temperature and humidity information.

Please also refer to Figure 2. The fan 21 of the aforementioned embedded gas exchange device is activated under control to guide air pollution through the filter element 22 for filtration. The filter element 22 can be a filter with an MREV of 8 or higher (minimum filtration efficiency value), or a high-efficiency particulate air filter (HEPA). It adsorbs chemical fumes, bacteria, dust particles, and pollen contained in the air pollution, thus achieving the effect of filtration and purification. It is worth noting that the HEPA filter in this case is a high-efficiency particulate air filter (HEPA). The filter element 22 can be further combined with physical or chemical materials to provide a sterilization effect on the air pollutants. The airflow path of the fan 21 is in the direction shown by the arrow. The filter element 22 is combined with a chemical method of applying a decomposition layer to sterilize and remove air pollutants. The decomposition layer can be activated carbon 22a, which removes organic and inorganic substances from the air pollutants, as well as colored and odorous substances. It is worth noting that the formaldehyde absorption capacity of the activated carbon 22a in this case is greater than 1500mg. The decomposition layer can be a chlorine dioxide cleaning agent 2. 2b. It inhibits viruses, bacteria, fungi, influenza A virus, influenza B virus, enterovirus, and norovirus in air pollution with an inhibition rate of over 99%, helping to reduce cross-infection of viruses. The decomposition layer can be a herbal protective layer of ginkgo and Japanese saltwort 22c, which effectively resists allergies and destroys the surface proteins of influenza viruses (e.g., H1N1). The decomposition layer can be a silver ion 22d, which inhibits viruses, bacteria, and fungi introduced into the air pollution. The decomposition layer can be a zeolite 22e, which removes ammonia nitrogen, heavy metals, organic pollutants, E. coli, phenol, chloroform, and anionic surfactants. In some embodiments, the filtration unit 22 can also be combined with a photochemical method to sterilize and remove air pollution. The photochemical irradiation is achieved using a photocatalyst unit consisting of a photocatalyst 22f and an ultraviolet lamp 22g. When the photocatalyst 22f is irradiated by the ultraviolet lamp 22g, it converts light energy into electrical energy, decomposing harmful substances in the air pollution and disinfecting it, thus achieving a filtration and sterilization effect. It is worth noting that this… The UV lamp in question has a power of over 120mW. Its light irradiation can function as a 22-hour photoplasma unit within a nano-tube. By irradiating the air pollution through this nano-tube, oxygen and water molecules in the pollution are decomposed into highly oxidizing photoplasma, forming an ionic gas stream that destroys organic molecules. This stream removes volatile organic compounds (VOCs) such as formaldehyde, toluene, and volatile organic compounds from the air pollution. Organic compounds (VOCs) and other gas molecules are decomposed into water and carbon dioxide, achieving filtration and sterilization. In some embodiments, the filtration unit 22 can also be combined with a decomposition unit to chemically remove air pollutants through sterilization. The decomposition unit can be a negative ion unit 22i, which causes the positively charged particles in the introduced air pollutants to attach to the negatively charged particles, achieving filtration and sterilization of the introduced air pollutants. The decomposition unit can also be a plasma ion unit 22j, which uses plasma ions to ionize oxygen and water molecules in the air pollutants to generate cations (H ⁺ ) and anions ( ^O2-) . Furthermore, substances with water molecules attached to the ions adhere to the surface of viruses and bacteria. Under the action of chemical reaction, they are transformed into highly oxidizing reactive oxygen species (hydroxyl, OH radicals), thereby taking away the hydrogen from the surface proteins of viruses and bacteria, oxidizing and decomposing them, so as to achieve the effect of filtering and sterilizing the introduced air pollution.

In summary, this invention provides a recessed gas exchange device for near-zero air pollution detection and purification in indoor spaces. It utilizes at least one gas detector internally, and features a design that eliminates the need for piping, incorporating at least one fan, at least one filter assembly, a drive controller, and a flow channel. The gas detector is electrically connected to the drive controller and forms an intelligent linkage system with the networked cloud computing service device of the indoor air purification network mechanism. The gas detector receives a control command from the networked cloud computing service device of the indoor air purification network mechanism via IoT communication to activate the drive controller. The operation of the duct fan and gas exchange fan provides an outdoor airflow channel, through which air is filtered by the filtration unit before entering the indoor area. The air is then repeatedly filtered and the temperature is adjusted for ventilation. Simultaneously, during ventilation, the indoor area maintains a positive pressure above 0 Pa to prevent outdoor air pollution from entering. This allows for the calculation of the indoor temperature, indoor carbon dioxide (CO2) levels, and outdoor carbon dioxide levels. ₂ ) The difference between PM2.5 and other air pollutants in indoor areas is close to zero. The system can detect and treat air pollution in real time to achieve a cleanroom-level cleanliness. At the same time, the system can detect air pollution in indoor areas and compare it with the ambient air quality. The system can control the fan to adjust the airflow according to the air quality, effectively adjust the energy-saving efficiency of the embedded gas exchange device, and achieve near-zero noise level of the airflow. This achieves a balanced and energy-saving extreme environmental protection, which is of great industrial value.

A: Indoor Area B: Outdoor Area C1: Air Inlet C2: Air Outlet 1: Gas Detector 11: Control Circuit Board 12: Gas Detector Main Body 121: Base 1211: First Surface 1212: Second Surface 1213: Laser Mounting Area 1214: Air Inlet Groove 1214a: Air Inlet Port 1214b: Light Transmitting Window 1215: Air Guiding Component Support Area 1215a: Vent Hole 1215b: Positioning Protrusion 1216: Air Outlet Groove 1216a: Air Outlet Port 1216b: First Zone 1216c: Second Zone 122: Piezoelectric Actuator 1221: Air Jet Plate 1221a: Suspension plate 1221b: Hollow hole 1221c: Gap 1222: Cavity frame 1223: Actuator 1223a: Piezoelectric carrier plate 1223b: Resonance adjustment plate 1223c: Piezoelectric plate 1223d: Piezoelectric pin 1224: Insulation frame 1225: Conductive frame 1225a: Conductive pin 1225b: Conductive electrode 1226: Resonance chamber 1227: Airflow chamber 123: Driver circuit board 124: Laser component 125: Particle sensor 126: Outer cover 1261: Side plate 1261a: Air Inlet 1261b: Air Outlet 127: Gas Sensor 13: Microprocessor 14: Communicator 2: Gas Exchange Main Unit 21: Fan 22: Filter Components 22a: Activated Carbon 22b: Chlorine Dioxide Cleansing Agent 22c: Herbal Protective Layer of Ginkgo and Japanese Saltwood 22d: Silver Ions 22e: Zeolite 22f: Photocatalyst 22g: Ultraviolet Lamp 22h: Nanotube 22i: Negative Ion Unit 22j: Plasma Ion Unit 23: Driver Controller 24: Flow Channel 24a: Exhaust Inlet 24b: Circulating air return outlet 24c: Filtered air duct 25: Gas exchange fan 3: Networked cloud computing service device 4: Air purifier 5: Fan filter unit 6: Exhaust system 7: Smoke exhaust system 8: Air conditioning unit 9: Vacuum cleaner 10: Dehumidifier

Figure 1A is a schematic diagram of the wall-mounted gas exchange device of the present invention. Figure 1B is an example diagram of the wall-mounted gas exchange device of the present invention in use in indoor environment A. Figure 2 is a schematic diagram of the assembly relationship of the filter components of the wall-mounted gas exchange device of the present invention. Figure 3A is a three-dimensional schematic diagram of the gas detector of the present invention. Figure 3B is a three-dimensional schematic diagram of the gas detector of the present invention from another angle. Figure 3C is a schematic diagram of the gas detection module installed inside the gas detector of the present invention. Figure 4A is a three-dimensional schematic diagram (I) of the assembled gas detection main body of the present invention. Figure 4B is a three-dimensional schematic diagram (II) of the assembled gas detection main body of the present invention. Figure 4C is an exploded perspective view of the gas detector of the present invention. Figure 5A is a three-dimensional schematic diagram (I) of the base of the present invention. Figure 5B is a three-dimensional schematic diagram (II) of the base of the present invention. Figure 6 is a three-dimensional schematic diagram (III) of the base of the present invention. Figure 7A is an exploded perspective view of the piezoelectric actuator and base of the present invention. Figure 7B is a three-dimensional schematic diagram of the piezoelectric actuator and base assembled together. Figure 8A is an exploded perspective view (I) of the piezoelectric actuator of the present invention. Figure 8B is an exploded perspective view (II) of the piezoelectric actuator of the present invention. Figure 9A is a cross-sectional schematic diagram (I) of the piezoelectric actuator of the present invention. Figure 9B is a cross-sectional schematic diagram (II) of the piezoelectric actuator of the present invention. Figure 9C is a cross-sectional schematic diagram (III) of the piezoelectric actuator of the present invention. Figure 10A is a cross-sectional view (I) of the gas detection main assembly. Figure 10B is a cross-sectional view (II) of the gas detection main assembly. Figure 10C is a cross-sectional view (III) of the gas detection main assembly. Figure 11 is a schematic diagram of the transmission of the gas detector of the present invention.

1: Gas Detector

2: Gas exchange host

21:Air guide fan

22: Filter Components

23: Drive Controller

24: Flow Guiding Channel

24a: Air intake port

24b: Circulating air vent

24c: Filtered air duct

25: Gas Exchanger

3: Networked cloud computing service device

Claims (23)

An embedded gas exchange device, applied to an indoor air purification network system, includes: at least one gas detector for detecting air pollution information and gas temperature and humidity information in an indoor area, wherein the indoor area is provided with at least one air inlet and at least one air outlet; and A gas exchange unit, embedded in the indoor area, includes at least one fan, at least one filter element, a drive controller, and a flow channel. The flow channel has an air intake corresponding to an outdoor area, a recirculating air inlet connecting to the indoor area, and a filtering air duct connecting to the indoor area. The recirculating air inlet is equipped with a gas exchange fan, and at least one fan and at least one filter element are disposed below the filtering air duct. The at least one gas detector is electrically connected to the drive controller. The at least one gas detector receives a control command via Internet of Things communication and sends it to the drive controller to start the operation of the at least one duct fan and the gas exchange fan. This allows the outdoor air to be introduced into the filtration duct and filtered through the at least one filtration unit before entering the indoor area. Simultaneously, the indoor air enters the filtration duct again through the recirculation return air inlet, drawing out air pollutants and circulating them through the at least one filtration unit multiple times. Temperature is also adjusted to achieve ventilation, thus achieving a cleanliness level approaching zero cleanroom standards. The embedded gas exchange device as described in claim 1, wherein the air pollution information is carbon dioxide ( _CO2 ) air pollution data, and the air exchange is implemented to achieve a carbon dioxide difference between the indoor area and the outdoor area approaching zero. The embedded gas exchange device as described in claim 1, wherein when it is started and put into operation to perform ventilation, maintains a positive pressure of 0 Pa or above in the space of the indoor area, so that air pollution from the outdoor area will not enter the indoor area. The embedded gas exchange device as described in claim 3, wherein the gas exchange device is a fresh air unit. The embedded gas exchange device as described in claim 3, wherein the gas exchange device is a total heat exchanger. The recessed gas exchange device as described in claim 3, wherein the gas exchange device is a heating, ventilation and air conditioning (HVAC) unit. As described in claim 1, in the embedded gas exchange device, the air pollution information and the gas temperature and humidity information of the at least one gas detector are transmitted via Internet of Things communication to a networked cloud computing service device of the indoor air purification network mechanism system. The networked cloud computing service device receives the air pollution information and the gas temperature and humidity information of the indoor and outdoor areas, stores them to form an air pollution big data database, and intelligently performs calculations and comparisons based on the air pollution big data database to intelligently select and issue the control command to the at least one gas detector to control the drive controller to start the operation of the at least one duct fan and the gas exchange fan. The embedded gas exchange device as described in claim 1, wherein the at least one filter element is a filter of MREV (Minimum Filtration Efficiency Value) 8 or higher. The embedded gas exchange device as described in claim 1, wherein the at least one filter element is a high-efficiency particulate air (HEPA) filter, wherein the HEPA filter is HEPA 10 or higher and has a dust holding capacity greater than 12000mg. The embedded gas exchange device as described in claim 1, wherein the air pollution is removed by sterilization through a chemical method of applying a decomposition layer on the at least one filter element. The embedded gas exchange device as described in claim 10, wherein the decomposition layer is an activated carbon having a formaldehyde absorption capacity greater than 1500 mg. The embedded gas exchange device as described in claim 10, wherein the decomposition layer is a chlorine dioxide cleaning agent. The embedded gas exchange device as described in claim 10, wherein the decomposition layer is a herbal protective layer of ginkgo and Japanese saltwort. The embedded gas exchange device as described in claim 10, wherein the decomposition layer is a silver ion. The embedded gas exchange device as described in claim 10, wherein the decomposition layer is a zeolite. The embedded gas exchange device as described in claim 1, wherein the at least one filter element is used in conjunction with a photochemical process to sterilize and remove the air pollution. The embedded gas exchange device as described in claim 16, wherein the light irradiation is a photocatalyst unit consisting of a photocatalyst and an ultraviolet lamp. The embedded gas exchange device as described in claim 17, wherein the ultraviolet lamp has a power of 120mw or more. The embedded gas exchange device as described in claim 16, wherein the light irradiation is a photoplasma unit of a nanotube. The embedded gas exchange device as described in claim 1, wherein the at least one filter element, in conjunction with a decomposition unit, chemically removes the air pollution through sterilization. The embedded gas exchange device as described in claim 20, wherein the decomposition unit is a negative ion unit. The embedded gas exchange device as described in claim 20, wherein the decomposition unit is a plasma ion unit. The recessed gas exchange device as described in claim 1, wherein the indoor area requires a cleanliness level of ZAPClean room 1 to 12.