An intelligent epidemic prevention passage

Abstract

The present invention discloses an intelligent epidemic prevention passage. The passage body includes an outer passage and an inner passage. The outer passage is an open passage provided with guardrails. The inner passage is a closed or semi-closed passage with its entrance connected to the end of the outer passage. The outer passage is successively paved with a sole dust sticking area, a sole disinfection area, and a sole drying area from the passage entrance to the passage end. The outer passage is also provided with a hand disinfection area. In front of the entrance of the inner passage, there are a linkage face recognition device and an infrared thermal imager, which are respectively used for personnel identity recognition and body temperature detection. Air curtains are provided at both the entrance and the exit of the inner passage, and a spray disinfection and purification system is provided inside the inner passage. The spray disinfection and purification system purifies the inside of the inner passage by blowing and spraying clean air that has been filtered and disinfected. The present invention can be used in places such as office buildings, shopping malls, railway stations, and airports to ensure the safety of mobile personnel and achieve the purpose of epidemic prevention.

Description

Technical Field

[0001] The present invention belongs to the field of epidemic prevention devices, and particularly relates to an intelligent epidemic prevention passage installed in crowded places such as office buildings, airports, stations, shopping malls, etc. Background Art

[0002] Due to the existence of unpredictable epidemics and seasonal infectious diseases, it is urgent to continuously and effectively carry out epidemic prevention work and continuously upgrade epidemic prevention facilities and equipment to ensure the safety of people's lives and maintain the normal order of social production.

[0003] After the outbreak of the epidemic, people often reduce the risk of infection by taking measures such as staying at home in isolation and reducing outdoor activities. For those who have to go out due to work or life needs, they choose to wear masks and other protective measures. This method can effectively block the virus. However, since the virus can be transmitted through multiple ways such as droplets, contact, and aerosols, virus-containing droplet nuclei may adhere to clothes or exposed skin, causing the continuous spread and diffusion of the virus and exacerbating the development of the epidemic. At the same time, in most cases, preliminary screening is often carried out by manual temperature measurement, which has low efficiency. And due to the limitation of the single temperature measurement point of the temperature detection instrument, it cannot truly reflect the body temperature of the person being measured, and people with abnormal body temperature may not be detected, which is not conducive to the effective development of epidemic prevention and control work.

[0004] In view of this, in order to prevent the spread of the epidemic, more secure protection and blocking measures must be taken. Furthermore, a set of epidemic prevention devices with high intelligence, high temperature measurement and identification efficiency, and capable of sterilization and disinfection is needed to quickly complete temperature measurement and identification during the epidemic period, be able to achieve disinfection and avoid cross-infection, ensure the safety of mobile personnel, and thus effectively achieve epidemic prevention and control. Summary of the Invention

[0005] The purpose of the present invention is to provide an intelligent epidemic prevention passage for ensuring the safety of mobile personnel during the epidemic prevention and control period.

[0006] The above object of the present invention is achieved by the following technical solutions:

[0007] An intelligent epidemic prevention passage, comprising a passage body, the passage body includes an outer passage and an inner passage, the outer passage is an open passage provided with guardrails, the inner passage is a closed or semi-closed passage with its entrance connected to the end of the outer passage, the outer passage is successively paved with a sole dust sticking area, a sole disinfection area and a sole drying area from the passage entrance to the passage end, the outer passage is also provided with a hand disinfection area, a linkage face recognition device and an infrared thermal imager are arranged in front of the entrance of the inner passage, which are respectively used for personnel identity recognition and body temperature detection, air curtains are arranged at both the entrance and the exit of the inner passage, and a spray disinfection and purification system is arranged inside the inner passage, and the spray disinfection and purification system purifies the inside of the inner passage by blowing with filtered and disinfected clean air.

[0008] The passage of the present invention can be used for the personnel management of people entering places such as office buildings, airports, stations, shopping malls, etc., to achieve the purpose of epidemic prevention. Clean the soles of the passing personnel in the outer passage, such as using a dust sticking floor mat to remove the dust on the soles, such as using a cotton floor mat to absorb water and dry the soles, and use chemical agents to disinfect the soles and hands of the passing personnel, such as disinfecting the soles with 84 disinfectant, and disinfecting the hands with alcohol-free hand sanitizer gel. And automatically identify the identity information of the passing personnel through the linkage face recognition device, which is convenient for intelligent personnel management work such as personnel work sign-in and number statistics. And check for people with abnormal body temperature through the infrared thermal imager, and quick measures can be taken when abnormalities are found. People with no abnormalities in personnel identity and body temperature enter the inner passage for spray disinfection and purification, and can pass only after the disinfection and purification are completed.

[0009] The present invention also has the following improvements:

[0010] The linkage face recognition device and the infrared thermal imager of the present invention are installed on the outer wall of the inner passage, and display screens are arranged at the entrance and the exit of the inner passage, which are used to display the identified personnel identity information, body temperature detection information and the blowing and purification process.

[0011] An abnormality indicator is also arranged at the entrance of the inner passage of the present invention. The abnormality indicator, the linkage face recognition device, the infrared thermal imager and the display screen are connected to the server through a network, and the linkage face recognition device also pre-stores personnel identity information for distinguishing internal personnel and external personnel, which is convenient for the work sign-in of internal personnel and the statistics of external personnel, and can also be used to identify unidentified personnel. The server pre-stores an abnormal body temperature value. When the personnel identity is not recognized or the detected body temperature of the personnel is higher than the abnormal body temperature value, the server sends a warning signal through the abnormality indicator. After the staff receives the warning signal, they can quickly take measures to solve the problem. For example, after receiving the prompt from the abnormality indicator, arrange the abnormal personnel to leave the outer passage from the open part of the guardrail.

[0012] Specifically, the abnormal body temperature value is set to ≥37.3°C. When the infrared thermal imager detects that the body temperature of a person is ≥37.3°C, the server issues a prompt through the abnormal prompter so that the management personnel can take corresponding measures. The abnormal body temperature value can be adjusted according to the specific needs of the usage scenario.

[0013] The inner channel of the present invention is a movable channel, and a roller is installed at the bottom end of the inner channel.

[0014] The inner channel of the present invention is connected by an entrance door, an exit door, a top wall, a bottom wall and two side walls to form a box body, which is a modular box body, and is quick to assemble and install, and is convenient for use in occasions with large flow of people and requiring rapid passage. The entrance door and the exit door of the present invention are arranged relative to each other, and the two side walls are arranged relative to each other. The interior of the inner channel is divided into an upper area and a lower area. The internal height of the inner channel can be designed according to the use occasion. The height of the upper area can account for more than 2 / 5 of the internal height of the inner channel, ensuring that the body parts above the armpit of the person are in the upper area. And the spray-type disinfection and purification system includes an air inlet disinfection mechanism located in the upper area of ​​the inner channel, a return air disinfection mechanism and an exhaust disinfection mechanism located in the lower area of ​​the inner channel. The inner channel adopts a combination of three sets of purification and disinfection ventilation systems and forms a scientific airflow organization method by adjusting the wind speed and wind direction to prevent cross infection, and achieve efficient sterilization, disinfection and purification effects. The air inlet disinfection mechanism includes a fresh air inlet box, an air inlet fan, a first high-efficiency filter and an upper nozzle group composed of multiple nozzles installed on the top wall and side wall of the upper area, the upper nozzle group sprays fresh air that has been killed by the first high-efficiency filter to the upper area through the top wall and side wall, the flowing fresh air fills the upper area, and the air in the original upper area continues to flow to the lower area. The return air disinfection mechanism includes a return air port, a return air fan, a lower nozzle group composed of multiple nozzles installed on the side wall of the lower area and a return air disinfection device, which are connected in sequence. The return air port is located at the lower end of the side wall, and the air in the lower area of ​​the inner channel circulates through the return air port, the return air fan, the return air disinfection device and the lower nozzle group to form an inner circulation wind. The lower nozzle group sprays the inner circulation wind treated by the return air disinfection device to the lower area for shower purification in the lower area. The exhaust and disinfection mechanism includes an exhaust inlet, an exhaust duct, an exhaust fan, a third high-efficiency filter and an exhaust outlet which are connected in sequence. The exhaust inlet is located at the entrance door of the inner channel and / or the threshold below the exit door of the inner channel. The exhaust of the exhaust and disinfection mechanism is discharged in sequence through the exhaust inlet, the inside of the threshold, the exhaust duct, the exhaust fan, the third high-efficiency filter and the exhaust outlet; the exhaust air is processed by the third high-efficiency filter to avoid secondary pollution.

[0015] The spray disinfection and purification system further includes an infrared lamp disposed inside the inner channel, which kills the viruses in the inner channel by infrared heating according to the virus characteristics of COVID-19.

[0016] Specifically, the return air disinfection device includes a first primary filter, an ultraviolet disinfection device, and a second high-efficiency filter disposed on the return air path between the return air outlet and the lower nozzle group.

[0017] A return air temperature sensor is installed on the return air path between the return air outlet and the return air fan of the present invention. It is used to monitor the real-time temperature of the return air. According to the return air temperature, the power of the infrared lamp can be feedback-controlled to ensure that the air temperature in the inner channel is within an appropriate range, which is used for air disinfection and can also ensure the temperature environment of the equipment.

[0018] An infrared sensor and a voice player are also provided inside the inner channel of the present invention. The infrared sensor is used to detect the personnel inside the inner channel. When it detects that there are personnel entering the inner channel, the intake fan, the return air fan, and the exhaust fan can be intelligently turned on by the server. The personnel are blown and purified according to the set time. After reaching the set time, the server turns off the intake fan, the return air fan, and the exhaust fan. At the same time, the voice player is used to broadcast the prompt voice for blowing and purification to guide the personnel inside the inner channel to complete the blowing and purification process.

[0019] The lower nozzle groups on the two side walls of the present invention are connected through air ducts.

[0020] The two side entrances of the fresh air intake box body of the present invention are provided with second primary filters. The fresh air intake box body is provided with the intake fan, and the fresh air intake box body is provided with a fresh air inlet.

[0021] In the present invention, the first and second primary filters can be selected as plate filters, and the first, second, and third high-efficiency filters can be selected as high-pressure sterilization filters, which can achieve the effect of sterilization while purifying the air.

[0022] In summary, the present invention has the following advantages:

[0023] The present invention is divided into an outer channel and an inner channel. The outer channel is used for disinfecting the soles and hands of personnel, and can intelligently complete the identity recognition and body temperature detection of personnel. The inner channel completes the spray purification treatment of personnel. It ensures the safety of the mobile personnel entering places such as office buildings, airports, railway stations, shopping malls, etc., and achieves the purpose of epidemic prevention.

[0024] The inner channel of the present invention can install an air curtain above the entrance door and the exit door to ensure that the air inside the inner channel is not affected by the outside; the upper area of the inner channel introduces fresh outside air through the air intake and disinfection mechanism. After the fresh air is purified and sterilized by the primary filter and the high-efficiency filter, it is sent into the upper area of the inner channel by the upper nozzle group, ensuring that the breathing area above the armpits of personnel is filled with clean fresh air; the high-speed clean fresh air flow provided by the upper nozzle group ensures the high-efficiency blowing and purifying effect while quickly blowing the exhaled air into the lower area of the inner channel, ensuring that there is no residual exhaled gas in the breathing area, thereby preventing cross-infection among personnel; the clean air flow filtered by the high-efficiency filter in the lower area of the inner channel is sprayed from all directions by the lower nozzle group to the area below the armpits of the human body, effectively and quickly removing viruses, bacteria and dust in this area. The bacteria and dust removed from the upper and lower area return air are sterilized by the infrared lamp and the ultraviolet disinfection device and then filtered by the primary and high-efficiency filters and recycled back into the lower area of the inner channel to form an internal circulation; the exhaust air disinfection mechanism, on the one hand, controls the exhaust air volume and cooperates with the air intake and disinfection mechanism to regulate the pressure difference between the inside of the inner channel and the outside space, and on the other hand, the exhaust air is discharged through the safety channel after being filtered and sterilized efficiently, ensuring the epidemic prevention effect. Brief Description of the Drawings

[0025] Figure 1 It is a side view of the present invention, in which the inner channel is a sectional effect view;

[0026] Figure 2 It is a top view of the present invention;

[0027] Figure 3 It is a sectional view of the inner channel of the present invention, which is a sectional view in the front view direction of the inner channel entrance;

[0028] Figure 4 It is a schematic diagram of the air flow organization of the inner channel of the present invention;

[0029] Description of the Reference Numerals:

[0030] 1. Channel body; 2. Guardrail; 3. Sole dust sticking area; 4. Sole disinfection area; 5. Hand disinfection area; 6. Sole drying area; 7. Air curtain; 8. Return air inlet; 9. First primary filter; 10. Ultraviolet disinfection device; 11. Return air fan; 12. Second high-efficiency filter; 13. Air duct; 14. Lower nozzle group; 15. Infrared lamp; 16. Return air temperature sensor; 17. Fresh air inlet; 18. Second primary filter; 19. Supply air fan; 20. First high-efficiency filter; 21. Upper nozzle group; 22. Linked face recognition device; 23. Infrared thermal imager; 24. Abnormality indicator; 25. Display screen; 26. Infrared sensor; 27. Voice player; 28. Exhaust air inlet; 29. Exhaust air duct; 30. Exhaust air fan; 31. Third high-efficiency filter; 32. Exhaust air outlet; 33. Roller; 101. Outer channel; 102. Inner channel; 1021. Upper area; 1022. Lower area. Detailed implementation manners

[0031] The technical solutions of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0032] As Figures 1 to 4 shown, an intelligent epidemic prevention channel includes a channel body 1, and the channel body 1 includes an outer channel 101 and an inner channel 102. The outer channel 101 is an open channel provided with a guardrail 2, and the inner channel 102 is a closed channel with its entrance connected to the tail end of the outer channel 101. The outer channel 101 is successively paved with a sole dust sticking area 3, a sole disinfection area 4 and a sole drying area 6 from the channel entrance to the channel tail end. The outer channel 101 is also provided with a hand disinfection area 5. A linked face recognition device 22 and an infrared thermal imager 23 are arranged in front of the entrance of the inner channel 102, which are respectively used for personnel identity recognition and body temperature detection. Air curtains 7 are arranged at both the entrance and the exit of the inner channel 102, and a spray disinfection and purification system is arranged inside the inner channel 102. The spray disinfection and purification system blows and purifies the inside of the inner channel with filtered and disinfected clean air.

[0033] As a preferred embodiment:

[0034] The linked face recognition device 22 and the infrared thermal imager 23 are installed on the outer wall of the inner channel 102, and a display screen 25 is arranged at the entrance and / or the exit of the inner channel 102, which is used for displaying the recognized personnel identity information, body temperature detection information and the blowing and purification process.

[0035] An abnormality indicator 24 is also provided at the entrance of the inner channel 102. The abnormality indicator 24, the linked face recognition device 22, the infrared thermal imager 23, and the display screen 25 are connected to the server through a network. The linked face recognition device 22 also pre-stores personnel identity information to distinguish internal personnel from external personnel, facilitating the work sign-in of internal personnel and the statistics of external personnel, and can also be used to identify unidentified personnel. The server pre-stores an abnormal body temperature value. When the personnel identity is not recognized or the detected body temperature of a person is higher than the abnormal body temperature value, the server sends an alarm signal through the abnormality indicator 24. After receiving the alarm signal, the staff can quickly take measures to solve the problem. For example, after receiving the prompt from the abnormality indicator, arrange for the abnormal person to leave the outer channel through the open part of the guardrail.

[0036] In this embodiment, the abnormal body temperature value is set to ≥37.3°C. When the infrared thermal imager detects that the body temperature of a person is ≥37.3°C, the server sends a prompt through the abnormality indicator 24 so that the management personnel can take corresponding measures. In other embodiments, the abnormal body temperature value can be adjusted according to the specific requirements of the usage scenario.

[0037] Specifically, the inner channel 102 of the present invention is a movable channel, and the movement is realized by installing rollers 33 at the bottom end of the inner channel 102. The inner channel 102 can be a closed box formed by connecting an entrance door, an exit door, a top wall, a bottom wall and two side walls. The modular design enables quick combined installation. The entrance door and the exit door are arranged opposite to each other, and the two side walls are arranged opposite to each other. The inner part of the inner channel 102 is divided into an upper region 1021 and a lower region 1022. The height of the upper region can account for more than 2 / 5 of the internal height of the inner channel, ensuring that the body parts above the armpits of the personnel are in the upper region. The spray disinfection and purification system includes an air inlet disinfection mechanism located in the upper region 1021 of the inner channel 102, a return air disinfection mechanism and an exhaust air disinfection mechanism located in the lower region 1022 of the inner channel 102. The inner channel adopts a combination of three sets of purification, disinfection and ventilation systems, and forms a scientific air flow organization method by adjusting the wind speed and direction to prevent cross-infection and achieve an efficient bactericidal, disinfection and purification effect. Among them, the air inlet disinfection mechanism includes a fresh air inlet box body, an air inlet fan 19, a first high-efficiency filter 20 and an upper nozzle group 21 composed of a plurality of nozzles installed on the top wall and side walls of the upper region 1021, which are connected in sequence. Second primary filters 18 are provided at the two side entrances of the fresh air inlet box body. An air inlet fan 19 is provided in the fresh air inlet box body. A fresh air inlet 17 is opened in the fresh air inlet box body. The upper nozzle group 21 sprays fresh air that has killed viruses through the first high-efficiency filter 20 into the upper region 1021 from the top wall and side walls. The flowing fresh air fills the upper region 1021, and the air in the original upper region 1021 continuously flows into the lower region 1022. The return air disinfection mechanism includes a return air inlet 8, a return air fan 11, a lower nozzle group 14 composed of a plurality of nozzles installed on the side walls of the lower region 1022 and a return air disinfection device. The lower nozzle groups 14 on the two side walls are connected through an air duct 13. Both the upper nozzle group 21 and the lower nozzle group 14 use nozzles with adjustable spraying directions; such as Figure 4As shown, the air return opening 8 is located at the lower end of the side wall. The air return disinfection device includes a first primary filter 9, an ultraviolet disinfection device 10, and a second high-efficiency filter 12 arranged on the air return path between the air return opening 8 and the lower nozzle group 14. The air in the lower region 1022 of the inner channel 102 circulates through the air return opening 8, the air return fan 11, the air return disinfection device, and the lower nozzle group 14 to form an internal circulation air flow. The lower nozzle group 14 sprays the internal circulation air processed by the air return disinfection device into the lower region 1022 for purifying the lower region 1022 by flushing. The exhaust air disinfection mechanism includes an exhaust air inlet 28, an exhaust air pipe 29, an exhaust air fan 30, a third high-efficiency filter 31, and an exhaust air outlet 32 that are connected in sequence. The exhaust air inlet 28 is located at the threshold below the entrance door and / or the exit door of the inner channel 102. The exhaust air of the exhaust air disinfection mechanism is discharged in sequence through the exhaust air inlet 28, the inside of the threshold, the exhaust air pipe 29, the exhaust air fan 30, the third high-efficiency filter 31, and the exhaust air outlet 31. The discharged air is processed by the third high-efficiency filter 31 to avoid secondary pollution.

[0038] In this embodiment, in order to improve the passing efficiency when there are many people, the entrance door and the exit door can be kept open during the operation of the device. In other embodiments, the inner channel may not be provided with an entrance door and an exit door, but only an entrance and an exit, and the entrance and the exit are open, forming a semi-enclosed box body. The exhaust air inlet 28 is provided on the threshold at the entrance or the exit.

[0039] An infrared lamp 15 is also provided inside the inner channel 102 to kill the virus in the inner channel by infrared heating according to the virus characteristics of COVID-19. A return air temperature sensor 16 is installed on the return air path between the air return opening 8 and the air return fan 11 to monitor the real-time temperature of the return air. According to the return air temperature, the power of the infrared lamp can be feedback-controlled to ensure that the air temperature in the inner channel is within a suitable range, which is used for air disinfection and can also ensure the temperature environment of the device.

[0040] An infrared sensor 26 and a voice player 27 are also provided inside the inner channel 102 of the present invention. The infrared sensor 26, the voice player 27, the incoming air disinfection mechanism, the return air disinfection mechanism, and the exhaust air disinfection mechanism are all connected to the server to achieve intelligent control. The infrared sensor 26 is used to detect the personnel inside the inner channel. When it detects that there are people entering the inner channel, the incoming air fan 19, the air return fan 11, and the exhaust air fan 30 can be intelligently turned on by the server. The personnel are purified by flushing according to the set time. After reaching the set time, the server turns off the incoming air fan 19, the air return fan 11, and the exhaust air fan 30. At the same time, the voice player 27 is used to broadcast the prompt voice for flushing purification to guide the personnel in the inner channel 102 to complete the flushing purification process.

[0041] In the present invention, the primary filter can be a panel filter, and the high-efficiency filter can be a high-pressure sterilization filter, which can sterilize while purifying the air.

[0042] The above embodiments do not limit the protection scope of the present invention. The implementation modes of the present invention are not limited to this. All such modifications, substitutions or changes in various other forms made to the above structure of the present invention based on the above content of the present invention or according to the common technical knowledge and conventional means in the art, without departing from the above basic technical idea of the present invention, shall fall within the protection scope of the present invention.

Claims

1. An intelligent epidemic prevention passage, comprising a passage body (1), characterized in that, The channel body (1) includes an outer channel (101) and an inner channel (102). The outer channel (101) is an open channel provided with a guardrail (2). The inner channel (102) is a closed or semi-closed channel with its entrance connected to the tail end of the outer channel (101). The outer channel (101) is successively paved with a sole dust sticking area (3), a sole disinfection area (4), and a sole drying area (6) from the channel entrance to the channel tail end. The outer channel (101) is also provided with a hand disinfection area (5). In front of the entrance of the inner channel (102), there are installed a linkage face recognition device (22) and an infrared thermal imager (23) for personnel identity recognition and body temperature detection respectively. Air curtains (7) are provided at both the entrance and the exit of the inner channel (102), and a spray disinfection and purification system is arranged inside the inner channel (102). The spray disinfection and purification system purifies the inside of the inner channel by blowing filtered and disinfected clean air.

2. The intelligent epidemic prevention passage according to claim 1, characterized in that: The linkage face recognition device (22) and the infrared thermal imager (23) are installed on the outer wall of the inner channel (102), and a display screen (25) is provided at the entrance and / or the exit of the inner channel (102) for displaying the recognized personnel identity information, body temperature detection information, and the blowing and purification process.

3. The intelligent epidemic prevention passage according to claim 2, characterized in that An abnormality prompt device (24) is also provided at the entrance of the inner channel (102). The abnormality prompt device (24), the linkage face recognition device (22), the infrared thermal imager (23), and the display screen (25) are connected to a server through a network. The linkage face recognition device (22) also prestores personnel identity information for distinguishing internal personnel and external personnel. The server prestores an abnormal body temperature value. When the personnel identity is not recognized or the detected body temperature of a person is higher than the abnormal body temperature value, the server issues a warning signal through the abnormality prompt device (24).

4. The intelligent epidemic prevention passage according to claim 3, characterized in that: The inner channel (102) is a movable channel, and rollers (33) are installed at the bottom end of the inner channel (102).

5. The intelligent epidemic prevention passage according to any one of claims 1 to 4, characterized in that: The inner channel (102) is enclosed by an inlet door, an outlet door, a top wall, a bottom wall and two side walls to form a box body. The inlet door and the outlet door are arranged opposite to each other, and the two side walls are arranged opposite to each other. The interior of the inner channel (102) is divided into an upper region (1021) and a lower region (1022). The spray disinfection and purification system includes an air inlet disinfection mechanism located in the upper region (1021) of the inner channel (102), a return air disinfection mechanism and an exhaust air disinfection mechanism located in the lower region (1022) of the inner channel (102). The air inlet disinfection mechanism includes a fresh air inlet box body, an air inlet fan (19), a first high-efficiency filter (20) and an upper nozzle group (21) composed of a plurality of nozzles installed on the top wall and the side walls of the upper region (1021), which are connected in sequence. The return air disinfection mechanism includes a return air inlet (8), a return air fan (11), a lower nozzle group (14) composed of a plurality of nozzles installed on the side walls of the lower region (1022) and a return air disinfection device, which are connected in sequence. The exhaust air disinfection mechanism includes an exhaust air inlet (28), an exhaust air pipe (29), an exhaust air fan (30), a third high-efficiency filter (31) and an exhaust air outlet (32), which are connected in sequence. The return air inlet (8) is located at the lower end of the side wall, and the exhaust air inlet (28) is located at the threshold below the inlet door of the inner channel (102) and / or the outlet door of the inner channel (102). The exhaust air of the exhaust air disinfection mechanism is discharged through the exhaust air inlet (28), the interior of the threshold, the exhaust air pipe (29), the exhaust air fan (30), the third high-efficiency filter (31) and the exhaust air outlet (32) in sequence. The spray disinfection and purification system further includes an infrared lamp (15) provided inside the inner channel (102).

6. The intelligent epidemic prevention passage according to claim 5, characterized in that: The return air disinfection device includes a first primary filter (9), an ultraviolet disinfection device (10) and a second high-efficiency filter (12) arranged on the return air path between the return air inlet (8) and the lower nozzle group (14).

7. The intelligent epidemic prevention passage according to claim 6, characterized in that, A return air temperature sensor (16) is installed on the return air path between the return air inlet (8) and the return air fan (11).

8. The intelligent epidemic prevention passage according to claim 5, characterized in that, An infrared sensor (26) and a voice player (27) are further arranged inside the inner channel (102). The infrared sensor (26) is used to detect the personnel inside the inner channel, and the voice player (27) is used to broadcast the prompt voice for spray purification.

9. The intelligent epidemic prevention passage according to claim 5, characterized in that, The lower nozzle groups (14) on the two side walls are connected through an air pipe (13).

10. The intelligent epidemic prevention passage according to claim 5, characterized in that, Second primary filters (18) are provided at the two side inlets of the fresh air inlet box body. The air inlet fan (19) is provided in the fresh air inlet box body, and a fresh air inlet (17) is opened on the fresh air inlet box body.

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