A low-carbon fully buried sewage treatment system and operation and maintenance method

Abstract

The present invention discloses a low-carbon fully buried sewage treatment system and operation and maintenance method, which relate to the field of sewage treatment technology. The low-carbon fully buried sewage treatment system includes an underground space, an unmanned operation and maintenance module, an intelligent ventilation module, an intelligent lighting module and a personnel detection module; the intelligent ventilation module includes an air inlet shaft, an exhaust shaft, a passive ventilation component and an active ventilation component; the intelligent lighting module includes a passive lighting component and an active lighting component. When there is no one in the underground space, the unmanned operation and maintenance module is used to maintain the operation of the low-carbon fully buried sewage treatment system, and the passive ventilation component and the passive lighting component are used to ventilate and illuminate the underground space, which has low energy consumption; when the user enters the underground space, the active ventilation component and the active lighting component are used to enhance the ventilation intensity and lighting intensity, ensure the life safety of the user and provide a good field of view, thereby facilitating the user's underground operations.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and in particular to a low-carbon fully buried sewage treatment system and an operation and maintenance method. Background Art

[0002] Wastewater treatment is a crucial component of municipal engineering. Fully underground sewage treatment plants are an emerging sewage treatment technology, widely used due to their compact footprint and minimal impact on above-ground facilities.

[0003] When sewage treatment plants are located underground, lighting and ventilation become increasingly challenging. Traditional technologies typically rely on electrically powered lighting and ventilation modules that operate 24 / 7 to meet daily usage needs. However, such solutions have high energy consumption and low energy efficiency, leading to energy waste. Summary of the Invention

[0004] In order to overcome the problem of "high energy consumption of fully underground sewage treatment plants" existing in the above-mentioned background technology, the present invention provides a low-carbon fully buried sewage treatment system and operation and maintenance method.

[0005] The technical solution adopted by the present invention to solve the above-mentioned technical problems is: a low-carbon fully buried sewage treatment system, including an underground space, an unmanned operation and maintenance module, an intelligent ventilation module, an intelligent lighting module and a personnel detection module; the unmanned operation and maintenance module includes several functional robots; the intelligent ventilation module includes an air intake shaft, an exhaust shaft, a passive ventilation component and an active ventilation component; the intelligent lighting module includes a passive lighting component and an active lighting component.

[0006] As a further optimization solution of the present invention, the passive ventilation component includes a rotatable wind-catching device installed at the top of the air inlet shaft.

[0007] As a further optimization solution of the present invention, the active ventilation component includes an air intake fan installed in the air intake shaft and / or an exhaust fan installed in the exhaust shaft.

[0008] As a further optimization solution of the present invention, the passive lighting assembly includes a plurality of light guide tubes longitudinally inserted into the soil layer above the underground space.

[0009] As a further optimization solution of the present invention, the active lighting assembly includes a lighting lamp and a light sensor installed in the underground space.

[0010] As a further optimization scheme of the present invention, the side wall of the air inlet shaft is provided with a first air outlet and a second air outlet respectively connected to the underground space, a first electric blind is installed in the first air outlet, and the air inlet fan is installed in the second air outlet; the side wall of the exhaust shaft is provided with a third air outlet and a fourth air outlet respectively connected to the underground space, a second electric blind is installed in the third air outlet, and the exhaust fan is installed in the fourth air outlet.

[0011] As a further optimization scheme of the present invention, the wind-catching device includes a wind-catching shell and a first tail wing; the two opposite side walls of the wind-catching shell are respectively provided with an air inlet and a first tail wing; a rotatable exhaust device is installed on the top of the exhaust shaft; the exhaust device includes a cover shell and a second tail wing; the exhaust port and the second tail wing are provided at the same side wall position of the cover shell.

[0012] As a further optimization solution of the present invention, a partition plate is provided at the bottom of the inner cavity of the air inlet shaft, and both sides and the bottom of the partition plate form a U-shaped flow channel for depositing impurity particles in the fresh air.

[0013] As a further optimization scheme of the present invention, the bottom end of the air inlet shaft is provided with a dust box that can be pulled out laterally, and the vertical cross-section of the dust box is U-shaped; a pit is provided at the edge of the ground of the underground space, and a crimping block with a vertical cross-section that is fan-shaped and can be rotated is provided in the pit; the crimping block is provided with an outer arc surface, and the upper part of the outer side wall of the dust box is provided with a crimping arc surface that is adapted to the outer arc surface, and when the crimping block is rotated to the outer arc surface and crimped to the crimping arc surface, it can limit the dust box; the inner wall of the air inlet shaft is provided with a limit block, and the limit block can abut and limit the upper surface of the end of the dust box away from the crimping arc surface.

[0014] A method for operating and maintaining a low-carbon, fully buried sewage treatment system includes an operating method, which includes: when the personnel detection module detects that a person has entered the underground space, operating the active ventilation component and the active lighting component; when the personnel detection module does not detect that a person has entered the underground space, operating the passive ventilation component and the passive lighting component.

[0015] In summary, the present invention has at least one of the following advantages:

[0016] (1) The present invention has a simple structure and reliable functions. When no one is in the underground space, an unmanned operation and maintenance module is used to maintain the operation of the low-carbon fully buried sewage treatment system, and a passive ventilation component and the passive lighting component are used to ventilate and illuminate the underground space, which has low energy consumption. When users enter the underground space, active ventilation components and the active lighting components are used to enhance the ventilation intensity and lighting intensity, ensure the life safety of users and provide a good field of view, thereby facilitating the underground operations of users.

[0017] (2) A rotatable exhaust device is installed at the top of the exhaust shaft; the exhaust device includes a cover and a second tail wing. Under the guidance of the second tail wing, the cover can rotate so that the exhaust port always faces away from the external airflow, avoiding the external airflow from flowing back into the underground space through the exhaust shaft, thereby ensuring the exhaust reliability of the underground space.

[0018] (3) A partition plate is provided at the bottom of the inner cavity of the air inlet shaft, and a U-shaped flow channel is formed on both sides and below the partition plate. When the air flows through the U-shaped flow channel, impurity particles fall into the dust collection box (under the action of their own gravity and centrifugal force), thereby preventing the problem of impurity particles entering the underground space with the air flow.

[0019] (4) The dust box can be pulled out horizontally in the air inlet shaft, and after being taken out through the pit, the adhered / compacted impurity particles can be easily cleaned, thereby avoiding the problem that the dust box is located in the air inlet shaft and has a small operating space, which makes it difficult for traditional dust removal technology to remove adhered / compacted impurity particles.

[0020] (5) The crimping block is provided with an outer arc surface, which can adapt to the crimping arc surface against the side wall of the dust box, thereby stably limiting the dust box in the air inlet shaft and avoiding the problem of the dust box accidentally falling out.

[0021] (6) A limit block is provided on the inner wall of the air inlet shaft, which can abut and limit the upper surface of the end of the dust box away from the crimped arc surface, thereby avoiding the problem of the end of the dust box warping up and blocking the U-shaped flow channel, and ensuring the smoothness of the air intake. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present application is further described below with reference to the accompanying drawings:

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 Schematic diagram of the wind-catching device structure;

[0025] Figure 3 Schematic diagram of the exhaust device structure;

[0026] Figure 4 Schematic diagram of the position and structure of the light guide;

[0027] Figure 5 Schematic diagram of the position and structure of the partition plate and U-shaped flow channel;

[0028] Figure 6 This is a schematic diagram of the crimping block screwed in;

[0029] Figure 7 This is a schematic diagram of the crimping block being screwed out;

[0030] Figure 8 This is a schematic cross-sectional view of the dust box and the crimped arc surface structure.

[0031] Description of reference numerals:

[0032] In the figure,

[0033] 1. Underground space; 11. Pit; 111. Pressing block;

[0034] 2. Air inlet shaft; 21. First air outlet; 22. Second air outlet; 23. Partition plate; 24. U-shaped flow channel; 25. Dust collection box; 251. Pressed arc surface; 26. Limit block; 27. Receiving port;

[0035] 3. Exhaust shaft; 31. Third air shaft; 32. Fourth air shaft;

[0036] 4. Wind-catching device; 41. Wind-catching shell; 42. First tail wing;

[0037] 5. Light guide tube; 51. Lighting cover; 52. Tube body; 53. Diffuser cover;

[0038] 6. Lighting;

[0039] 7. Exhaust device; 71. Cover; 72. Second tail wing. DETAILED DESCRIPTION

[0040] Based on the above structural features of the present application, the implementation methods of the present application are further described:

[0041] Reference Figure 1 , this embodiment provides a low-carbon, fully buried sewage treatment system, including an underground space 1, an unmanned operation and maintenance module, an intelligent ventilation module, an intelligent lighting module and a personnel detection module. The underground space 1 is used to store sewage, sewage treatment equipment, sewage treatment consumables, etc. The unmanned operation and maintenance module includes a number of functional robots, including inspection robots, sampling robots, garbage and sludge transfer robots, etc., which are equipped with radar or positioning systems and can realize lightless and unmanned operation and maintenance. They are all conventional existing technologies in the industry and will not be described in detail. The intelligent ventilation module includes an air inlet shaft 2, an exhaust shaft 3, a passive ventilation component and an active ventilation component; the intelligent lighting module includes a passive lighting component and an active lighting component.

[0042] Reference Figure 1 The air inlet shaft 2 and the air exhaust shaft 3 are respectively connected to the two ends of the underground space 1, thereby reducing the ventilation blind area.

[0043] Reference Figure 1 and Figure 2The passive ventilation component includes a wind-catching device 4 that is installed at the top of the air inlet shaft 2 and can rotate. The wind-catching device 4 includes a wind-catching shell 41 and a first tail wing 42; the two opposite side walls of the wind-catching shell 41 are respectively provided with an air inlet and the first tail wing 41; the wind-catching shell 41 is in the shape of a figure 7 and is provided with a 7-shaped air inlet duct inside, and the air inlet is the upper lateral opening of the air inlet duct. The external air flow enters the air inlet duct through the air inlet, and then enters the underground space 1 through the air inlet shaft 2. Under the guidance of the first tail wing 42, the wind-catching shell 41 can rotate, so that the air inlet can always face the external air flow, thereby increasing the air intake. The top of the air inlet shaft 2 and the bottom of the wind-catching shell 41 are connected by a bearing, so that the wind-catching shell 41 can rotate with the wind; the wind-catching shell 41 is fixedly connected to the first tail wing 42 (for example, fixed by bolts or fixed by welding).

[0044] Reference Figure 1 and Figure 3 A rotatable exhaust device 7 is installed at the top of the exhaust shaft 3; the exhaust device 7 includes a cover shell 71 and a second tail wing 72; an exhaust port and a second tail wing 72 are provided at the same side wall position of the cover shell 71. The cover shell 71 is in the shape of a figure 7 and is provided with an exhaust air duct in the shape of a figure 7 inside. The exhaust port is the lateral opening at the upper part of the exhaust air duct; the air in the underground space 1 is discharged through the exhaust shaft 3, the exhaust air duct and the exhaust port. Under the guidance of the second tail wing 72, the cover shell 71 can rotate so that the exhaust port is always facing away from the external airflow, preventing the external airflow from flowing back into the underground space 1 through the exhaust shaft 3, thereby ensuring the exhaust reliability of the underground space 1. The bottom end of the cover shell 71 is rotatably connected to the top of the exhaust shaft 3 (for example, through a bearing connection).

[0045] The active ventilation assembly includes an air intake fan installed in the air intake shaft 2 and / or an exhaust fan installed in the exhaust shaft 3. Fan blades are respectively installed on the output shafts of the air intake fan and the exhaust fan to promote airflow into or out of the underground space 1.

[0046] Reference Figure 1 and Figure 4 The passive lighting assembly includes several light pipes 5 longitudinally inserted into the soil layer above the underground space 1. The light pipes 5 comprise a skylight 51, a tube body 52, and a diffuser 53. The skylight 51 is fixedly mounted on the top of the tube body 52, while the diffuser 53 is fixedly mounted on the bottom of the tube body 52. ​​The inner wall of the tube body 52 is coated with a reflective film. The inner cavities of the skylight 51, the tube body 52, and the diffuser 53 are sequentially connected, thereby guiding external light into the underground space 1.

[0047] The active lighting assembly includes a lamp 6 and a light sensor installed within the underground space 1. The lamp 6 is fixedly mounted on the ceiling of the underground space 1 (e.g., via bolts); the light sensor is also fixedly mounted on the ceiling of the underground space 1 (e.g., via bolts). The light sensor, such as a light intensity sensor, detects the light intensity within the underground space 1. When the light signal intensity detected by the light sensor falls below a preset value, the lamp 6 is activated to provide supplemental lighting, providing the user with a good working field vision.

[0048] Reference Figure 1 The side wall of the air inlet shaft 2 is provided with a first air vent 21 and a second air vent 22, which are respectively connected to the underground space 1. A first electric venetian blind is installed in the first air vent 21, and an air inlet fan is installed in the second air vent 22. When the first electric venetian blind is opened, the air flow in the air inlet shaft 2 can flow into the underground space 1 through the first air vent 21 and the second air vent 22 (the blades connected to the air inlet fan cannot completely block the second air vent 22). When the first electric venetian blind is closed and the air inlet fan is turned on, the air flow in the air inlet shaft 2 can be driven into the underground space 1 (closing the first electric venetian blind is used to prevent backflow of air between the first air vent 21 and the second air vent 22).

[0049] Reference Figure 1 The sidewalls of the exhaust shaft 3 are provided with third and fourth air vents, each connected to the underground space 1. A second electric blind is installed in the third air vent, and an exhaust fan is installed in the fourth air vent. When the second electric blind is opened, air from the underground space 1 can flow into the exhaust shaft 3 through the third and fourth air vents (the blades connected to the exhaust fan cannot completely block the second air vent 22). Closing the second electric blind and turning on the exhaust fan can drive air from the underground space 1 into the exhaust shaft 3 (closing the second electric blind prevents backflow between the third and fourth air vents).

[0050] The air inlet fan is fixedly installed in the second air outlet 22 through the support frame, and the exhaust fan is fixedly installed in the fourth air outlet through the support frame. The support frame and the support frame are conventional existing technologies in the industry, and the specific structure will not be repeated.

[0051] Reference Figure 5 A partition plate 23 is provided at the bottom of the air intake shaft 2. U-shaped channels 24 are formed on both sides and below the partition plate 23 to deposit impurity particles (such as dust) in the fresh air. The partition plate 23 is bolted or welded to the inner wall of the air intake shaft 2. The vertical cross-section of the partition plate 23 is an inverted L-shape.

[0052] Reference Figures 6 and 7A laterally retractable dust box 25 is located at the bottom of the air inlet shaft 2. When inserted into the air inlet shaft 2, the dust box 25 is positioned below the partition plate 23. The dust box 25 has a U-shaped vertical cross-section, catching any impurities that fall. As air flows through the U-shaped channel 24, impurities fall into the dust box 25 (due to gravity and centrifugal force), preventing them from entering the underground space 1 with the airflow.

[0053] Reference Figures 6 to 8 A pit 11 is provided at the edge of the ground of the underground space 1. A dust box 25 is placed in the pit 11 and can be moved laterally under the action of human or mechanical force (such as a robotic arm). A crimping block 111 with a fan-shaped vertical cross-section and capable of rotation is provided in the pit 11. The middle of the crimping block 111 is rotatably connected (for example, hinged) to the top of the side wall of the pit 11 away from the air inlet shaft 2; the crimping block 111 can be rotated to abut the dust box 25 (refer to Figure 6 ), or rotate it to press it onto the upper surface of the ground in the underground space 1 (refer to Figure 7 ).

[0054] A water retaining slope (for example, fixed by pouring concrete) is provided on the upper surface of the ground of the underground space 1 to prevent sewage in the reservoir from flowing into the pit 11 .

[0055] Reference Figure 6 and Figure 8 The crimping block 111 is provided with an outer arc surface, the radius of the outer arc surface is adapted to the vertical distance between the rotation center of the crimping block 111 and the outer wall of the air inlet shaft 2, and the upper part of the outer wall of the dust box 25 is provided with a crimping arc surface 251 adapted to the outer arc surface. When the crimping block 111 rotates to the outer arc surface, the crimping arc surface 251 is crimped (at this time, one plane of the crimping block 111 is in contact with the inner wall of the pit 11, and the other plane is adapted to block the top opening of the pit 11. The plane used to adapt to and block the pit 11 can be coplanar with the upper surface of the ground of the underground space 1, thereby improving the operating safety and convenience of the functional robot or user, and preventing the functional robot, user or operating materials from falling into the pit 11); at the same time, the crimping block 111 can limit the dust box 25 to prevent the dust box 25 from falling out, while ensuring the sealing between the dust box 25 and the air inlet shaft 2, and preventing impurity particles from flowing out with the leaked airflow.

[0056] Reference Figure 6 and Figure 8The inner wall of the air inlet shaft 2 is provided with a stopper 26 (for example, welded or bolted). The stopper 26 can abut against and stop the upper surface of the end of the dust box 25 away from the crimping arc surface 251. Since the outer arc surface is pressed against the crimping arc surface 251 in an oblique downward manner, the side of the dust box 25 away from the crimping arc surface 251 has a tendency to tilt upward. The stopper 26 is used to prevent the problem of tilting upward, thereby ensuring the installation stability of the dust box 25 (the side of the dust box 25 away from the crimping arc surface 251 tilts upward to prevent the dust box 25 from tilting upward). Figure 6 Taking the perspective shown as an example, the dust box 25 has a tendency to rotate clockwise, which will further cause the left side of the U-shaped flow channel 24 to be blocked).

[0057] Unlike traditional dust cleaning techniques, the airflow flowing into the air inlet shaft 2 in the present invention contains moisture. This moisture comes into contact with the impurity particles in the dust box 25 and then evaporates naturally, causing the impurity particles to agglomerate and adhere to the dust box 25. Therefore, traditional dust removal techniques are difficult to remove impurity particles. In the present invention, after the user unscrews the crimping block 111, the dust box 25 can be pulled out horizontally from the air inlet shaft 2, and then extracted from the pit 11. The dust box 25 and the impurity particles in the dust box 25 can be removed together, facilitating subsequent cleaning (for example, using a high-pressure water gun or a brush to clean off impurity particles adhering to the inner wall of the dust box 25), thereby improving operational convenience.

[0058] Reference Figure 7 The bottom of the side wall of the air inlet shaft 2 is provided with an accommodating opening 27, which is used to provide space for inserting the dust box 25. When the dust box 25 is inserted into the air inlet shaft 2, the side wall of the dust box 25 can adapt to block the accommodating opening 27, thereby preventing air and dust leakage. The bottom surface of the dust box 25 is provided with movable wheels to facilitate the lateral movement of the dust box 25.

[0059] An operation and maintenance method for a low-carbon fully buried sewage treatment system, including an operation method and a maintenance method.

[0060] The operating method includes: when the personnel detection module detects a person entering the underground space 1, the active ventilation component and the active lighting component are activated; when the personnel detection module does not detect a person entering the underground space 1, the passive ventilation component and the passive lighting component are activated. Since the low-carbon fully underground sewage treatment system normally operates using an unmanned operation and maintenance module, i.e., functional robots have low oxygen and light requirements when operating, natural ventilation (i.e., the passive ventilation component) and natural lighting (i.e., the passive lighting component) are used to ventilate and illuminate the underground space 1. When a user enters the underground space 1, the active ventilation component and the active lighting component are activated to ensure the user's oxygen and light supply, personal safety, and good vision. The personnel detection module, such as a satellite positioning system, uses satellite positioning to locate the user's portable electronic device (e.g., a mobile phone) to determine whether the user has entered the low-carbon fully underground sewage treatment system and which underground space 1 the user is located in (the low-carbon fully underground sewage treatment system has multiple underground spaces 1, each used to perform different sewage treatment processes).

[0061] The maintenance method includes the following steps: S1, grab the first handle on the surface of the crimping block 111, screw the crimping block 111 out of the pit 11, and then (naturally) crimp the crimping block 111 to the upper surface of the ground of the underground space 1; S2, grab the second handle on the outer wall of the dust box 25, pull the dust box 25 out of the air inlet shaft 2, and place the dust box 25 in the pit 11; S3, lift the dust box 25, and take the dust box 25 out of the pit 11; S4, clean the foreign particles in the dust box 25; S5, place the dust box 25 into the pit 11 and push it into the air inlet shaft 2; S6, grab the first handle on the surface of the crimping block 111, screw the crimping block 111 into the pit 11, so that the outer arc surface is crimped to the crimping arc surface 251.

[0062] When the crimping block 111 is screwed into the pit 11, the bottom end of the crimping block 111 crimps the bottom surface of the inner cavity of the pit 11. Compared with the traditional overhead cover, the crimping block 111 has a stronger load-bearing capacity. When the functional robot (and other engineering machinery) is crimped on the crimping block 111, it will not cause the crimping block 111 to bend and sink. The functional robot does not need to avoid the pit 11, and thus has the largest possible range of movement.

[0063] The low-carbon fully buried sewage treatment system also includes an electrical cabinet, which is fixedly installed on the top of the side wall of the underground space 1 by bolts; the air intake fan, exhaust fan, light sensor, lighting lamp 6, first electric blinds, and second electric blinds are respectively connected to the electrical cabinet through wires and signal lines; the electrical cabinet is connected to the external power supply and external computer through wires and signal lines, respectively, and the functional robot is connected to the external computer through wireless connection. The computer controls the start and stop and other working states of the air intake fan, exhaust fan, light sensor, lighting lamp 6, first electric blinds, second electric blinds and functional robot in the present invention.

[0064] The low-carbon, fully underground sewage treatment system also includes an intelligent monitoring module, which includes sensors installed within the underground space (such as pH sensors, pressure sensors, liquid level sensors, oxygen content sensors, ammonia content sensors, nitrogen content sensors, and other sensors used to monitor various parameters during the sewage treatment process) and a camera. The camera is equipped with a night vision component, a heat source monitoring component, and a voiceprint recognition component. The sensors and camera are connected to the electrical cabinet via wires and signal cables, respectively. A peripheral computer is located in the above-ground central control room. Monitoring personnel in the above-ground central control room can use data collected by the intelligent monitoring module to evaluate the operation of each sewage treatment process stage. When abnormal gas parameters are detected in a specific underground space (e.g., oxygen content below a threshold, ammonia content above a threshold), the active ventilation component is activated to accelerate air exchange, and a patrol robot is driven into the underground space (1) to collect data or perform collaborative operations. When abnormal light parameters are detected in a specific underground space (1), the active lighting component is activated to provide supplemental lighting, and the patrol robot is driven into the underground space (1) to collect data or perform collaborative operations. A skylight is provided on the top surface of the underground space (1) to allow for natural light. When there is sufficient natural light (monitored by the light sensor), the camera enters low-power mode and only enables the color recognition function; when there is insufficient natural light, the built-in night vision component (i.e., infrared fill light component) is activated.

[0065] The underground space 1 is a basement.

[0066] The present invention has a simple structure and reliable functions. When there is no one in the underground space 1, an unmanned operation and maintenance module is used to maintain the operation of the low-carbon fully buried sewage treatment system, and passive ventilation components and passive lighting components are used to ventilate and illuminate the underground space 1, with low energy consumption. When users enter the underground space 1, active ventilation components and active lighting components are used to enhance the ventilation intensity and lighting intensity, ensure the life safety of users and provide a good field of view, thereby facilitating the underground operations of users.

[0067] In the description of the present invention, it should be noted that the terms "up", "down", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0068] It should also be noted that, in the description of the present invention, unless otherwise expressly specified or limited, the terms "disposed," "installed," and "connected" should be understood broadly. For example, they may refer to fixed or detachable connections, or integral connections; mechanical or electrical connections; direct connections or connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0069] To sum up, for those skilled in the art, according to the guidance of the present invention, without departing from the principles and spirit of the present invention, changes, modifications, replacements and deformations made to the present invention still fall within the scope of protection of the present invention.

Claims

1. A low-carbon, fully buried sewage treatment system, characterized by: It includes underground space (1), unmanned operation and maintenance module, intelligent ventilation module, intelligent lighting module and personnel detection module; The unmanned operation and maintenance module includes a plurality of functional robots; the intelligent ventilation module includes an air intake shaft (2), an air exhaust shaft (3), a passive ventilation component, and an active ventilation component; the intelligent lighting module includes a passive lighting component and an active lighting component; The passive ventilation assembly comprises a rotatable wind-catching device (4) mounted on the top of the air inlet shaft (2); The active ventilation assembly comprises an air intake fan installed in the air intake shaft (2) and / or an air exhaust fan installed in the air exhaust shaft (3); The passive lighting assembly comprises a plurality of light guide tubes (5) longitudinally inserted into the soil layer above the underground space (1); The active lighting assembly comprises a lighting lamp (6) and a light sensor installed in the underground space (1); A partition plate (23) is provided at the bottom of the inner cavity of the air inlet shaft (2), and U-shaped flow channels (24) are formed on both sides and below the partition plate (23) for depositing impurity particles in the fresh air; The bottom end of the air inlet shaft (2) is provided with a dust box (25) that can be pulled out laterally, and the vertical section of the dust box (25) is U-shaped; a pit (11) is provided at the edge of the ground of the underground space (1), and a crimping block (111) with a vertical section of a fan-shaped and rotatable vertical section is provided in the pit (11); the crimping block (111) is provided with an outer arc surface, and the upper part of the outer side wall of the dust box (25) is provided with a crimping arc surface (251) adapted to the outer arc surface, and when the crimping block (111) rotates to the outer arc surface to crimp the crimping arc surface (251), the dust box (25) can be limited; a limiting block (26) is provided on the inner wall of the air inlet shaft (2), and the limiting block (26) can abut and limit the upper surface of the end of the dust box (25) away from the crimping arc surface (251).

2. The low-carbon fully buried sewage treatment system according to claim 1 is characterized by: The side wall of the air inlet shaft (2) is provided with a first air outlet (21) and a second air outlet (22) respectively connected to the underground space (1), a first electric blind is installed in the first air outlet (21), and the air inlet fan is installed in the second air outlet (22); the side wall of the air exhaust shaft (3) is provided with a third air outlet and a fourth air outlet respectively connected to the underground space (1), a second electric blind is installed in the third air outlet, and the air exhaust fan is installed in the fourth air outlet.

3. The low-carbon fully buried sewage treatment system according to claim 2 is characterized by: The wind-catching device (4) comprises a wind-catching shell (41) and a first tail wing (42); an air inlet is provided at one of the two opposite side walls of the wind-catching shell (41), and the first tail wing (42) is provided at the other side wall; a rotatable exhaust device (7) is installed at the top of the exhaust shaft (3); the exhaust device (7) comprises a cover shell (71) and a second tail wing (72); the exhaust port and the second tail wing (72) are provided at the same side wall position of the cover shell (71).

4. An operation and maintenance method for a low-carbon, fully buried sewage treatment system according to claim 3, characterized in that: The invention comprises an operating method, wherein the operating method comprises: when the personnel detection module detects that a person enters the underground space (1), the active ventilation component and the active lighting component are operated; when the personnel detection module does not detect that a person enters the underground space (1), the passive ventilation component and the passive lighting component are operated.

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