Low-carbon type fully-buried sewage treatment system and operation and maintenance method

Abstract

The application discloses a low-carbon type full-buried sewage treatment system and an operation and maintenance method, and relates to the technical field of sewage treatment. The low-carbon type full-buried sewage treatment system comprises 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 comprises an air inlet shaft, an air outlet shaft, a passive ventilation assembly and an active ventilation assembly; and the intelligent lighting module comprises a passive lighting assembly and an active lighting assembly. When the underground space is unoccupied, the unmanned operation and maintenance module is used to maintain the operation of the low-carbon type full-buried sewage treatment system, the passive ventilation assembly and the passive lighting assembly are used to ventilate and light the underground space, and the system has low energy consumption; when a user enters the underground space, the active ventilation assembly and the active lighting assembly are used to enhance ventilation intensity and lighting intensity, guarantee the life safety of the user and provide a good field of view, so that the user can conveniently perform underground operation.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, specifically to a low-carbon, fully underground wastewater treatment system and its operation and maintenance method. Background Technology

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

[0003] When a wastewater treatment plant is located underground, the challenges of lighting and ventilation increase. Traditional technologies typically use electrically driven lighting and ventilation modules that operate 24 hours a day to meet daily needs. However, such solutions have high energy consumption and low energy efficiency, easily leading to energy waste. Summary of the Invention

[0004] To overcome the problem of "high energy consumption in fully underground sewage treatment plants" in the aforementioned background technology, this invention provides a low-carbon, fully underground sewage treatment system and its operation and maintenance method. The technical solution of this application was previously filed as a patent application on April 18, 2025, entitled "A Low-Carbon, Fully Underground Sewage Treatment System and its Operation and Maintenance Method," application number 202510489897.7.

[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 air 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 of the present invention, the passive ventilation assembly includes a wind-catching device installed at the top of the air intake shaft and capable of rotation.

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

[0008] As a further optimization of the present invention, the passive lighting component includes a plurality of light guides that are longitudinally inserted into the soil layer above the underground space.

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

[0010] As a further optimization of the present invention, the side wall of the air intake shaft is provided with a first air inlet and a second air inlet respectively communicating with the underground space. A first motorized louver is installed in the first air inlet, and the air intake fan is installed in the second air inlet. The side wall of the exhaust shaft is provided with a third air inlet and a fourth air inlet respectively communicating with the underground space. A second motorized louver is installed in the third air inlet, and the exhaust fan is installed in the fourth air inlet.

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

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

[0013] As a further optimization of the present invention, the bottom of the air intake shaft is provided with a dust collection box that can be pulled out laterally, and the dust collection box has a U-shaped vertical cross-section; a pit is provided at the ground edge of the underground space, and a pressing block with a fan-shaped vertical cross-section and capable of rotation is provided in the pit; the pressing block has an outer arc surface, and the upper part of the outer wall of the dust collection box has a pressing arc surface adapted to the outer arc surface. When the pressing block rotates to the point where the outer arc surface presses against the pressing arc surface, it can limit the dust collection box; a limiting block is provided on the inner wall of the air intake shaft, and the limiting block can abut against and limit the upper surface of the end of the dust collection box away from the pressing arc surface.

[0014] A method for operating and maintaining a low-carbon, fully underground sewage treatment system includes an operation method, wherein the operation method includes: when the personnel detection module detects personnel entering the underground space, the active ventilation component and the active lighting component are operated; when the personnel detection module does not detect personnel entering the underground space, the passive ventilation component and the passive lighting component are operated.

[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 function. 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. 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 vision, thereby facilitating the user's underground operation.

[0017] (2) The top of the exhaust shaft is equipped with a rotatable exhaust device; the exhaust device includes a cover and a second tail fin. Under the guidance of the second tail fin, the cover can rotate so that the exhaust port always faces away from the outside airflow, thereby preventing the outside airflow from flowing back into the underground space through the exhaust shaft, thus ensuring the reliability of the exhaust in the underground space.

[0018] (3) A partition plate is provided at the bottom of the air intake shaft, and the two sides and the bottom of the partition plate form a U-shaped flow channel. When the airflow flows through the U-shaped flow channel, the impurity particles fall into the dust collection box (under the action of their own gravity and centrifugal force), thereby avoiding the problem of impurity particles entering the underground space with the airflow.

[0019] (4) The dust collection box can be pulled out horizontally in the air intake shaft. After being taken out through the pit, it can be conveniently cleaned of adhesive / clumped impurity particles, thus avoiding the problem that the dust collection box is located in the air intake shaft and has a small operating space, which makes it difficult for traditional dust removal technology to remove adhesive / clumped impurity particles.

[0020] (5) The pressing block has an outer arc surface, which can be adapted to the pressing arc surface of the side wall of the dust collection box, thereby stably limiting the dust collection box in the air inlet shaft and avoiding the problem of the dust collection box accidentally falling out.

[0021] (6) A limiting block is provided on the inner wall of the air inlet shaft. The limiting block can abut against and limit the upper surface of the end of the dust collection box away from the pressing arc surface, thereby avoiding the problem of the dust collection box end tilting up and blocking the U-shaped flow channel, and ensuring smooth air intake. Attached Figure Description

[0022] The present application will be further explained below with reference to the accompanying drawings:

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

[0024] Figure 2 This is a schematic diagram of the wind-catching device.

[0025] Figure 3 This is a schematic diagram of the exhaust system structure;

[0026] Figure 4 This is a schematic diagram showing the position and structure of the light guide tube;

[0027] Figure 5 This is a schematic diagram showing the location and structure of the partition plate and the U-shaped flow channel;

[0028] Figure 6 This is a schematic diagram showing the crimping block in the screw-in state;

[0029] Figure 7 This is a schematic diagram showing the crimping block in the unscrewed state.

[0030] Figure 8 This is a vertical sectional view of the dust collection box and the press-fitted arc surface structure.

[0031] Explanation of reference numerals in the attached figures:

[0032] In the picture,

[0033] 1. Underground space; 11. Pit; 111. Press-fit 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. Press-fitted arc surface; 26. Limiting block; 27. Reception opening;

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

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

[0037] 5. Light guide tube; 51. Light-collecting dome; 52. Tube body; 53. Diffuser;

[0038] 6. Lighting;

[0039] 7. Ventilation device; 71. Cover; 72. Second tail fin. Detailed Implementation

[0040] Based on the above-described structural features of this application, the implementation methods of this application will be further described as follows:

[0041] Reference Figure 1 This embodiment provides a low-carbon, fully underground 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 several functional robots, such as inspection robots, sampling robots, and garbage and sludge transfer robots, equipped with radar or positioning systems, enabling lightless, unmanned operation and maintenance. These are all conventional existing technologies in the industry and will not be described in detail. The intelligent ventilation module includes an air intake shaft 2, an exhaust shaft 3, passive ventilation components, and active ventilation components; the intelligent lighting module includes passive lighting components and active lighting components.

[0042] Reference Figure 1 The air intake shaft 2 and the exhaust shaft 3 are connected to both ends of the underground space 1, thereby reducing the ventilation blind spots.

[0043] Reference Figure 1 and Figure 2The passive ventilation system includes a rotatable wind-catching device 4 mounted on the top of the air intake shaft 2. The wind-catching device 4 includes a wind-catching shell 41 and a first tail fin 42. Air inlets and the first tail fin 42 are respectively located on two opposite sidewalls of the wind-catching shell 41. The wind-catching shell 41 is shaped like a "7" and has a "7"-shaped air intake duct inside, with the air inlet being the upper lateral opening of the air intake duct. External airflow enters the air intake duct through the air inlet and then enters the underground space 1 through the air intake shaft 2. Guided by the first tail fin 42, the wind-catching shell 41 can rotate, ensuring that the air inlet always faces the external airflow, thereby increasing the air intake volume. The top of the air intake shaft 2 is connected to the bottom of the wind-catching shell 41 via a bearing, enabling the wind-catching shell 41 to rotate with the wind. The wind-catching shell 41 is fixedly connected to the first tail fin 42 (e.g., by bolts or 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 71 and a second tail fin 72. An exhaust port and the second tail fin 72 are located on the same side wall of the cover 71. The cover 71 is shaped like the number 7 and has an exhaust duct shaped like the number 7 inside. The exhaust port is the upper lateral opening of the exhaust duct. Air in the underground space 1 is discharged through the exhaust shaft 3, the exhaust duct, and the exhaust port. Under the guidance of the second tail fin 72, the cover 71 can rotate, so that the exhaust port always faces away from the outside airflow, preventing outside airflow from flowing back into the underground space 1 through the exhaust shaft 3, thereby ensuring the reliability of exhaust in the underground space 1. The bottom end of the cover 71 is rotatably connected to the top end of the exhaust shaft 3 (e.g., through a bearing).

[0045] The active ventilation system includes an intake fan installed in the intake shaft 2 and / or an exhaust fan installed in the exhaust shaft 3. Fan blades are mounted on the output shafts of both the intake fan and the exhaust fan, thereby propelling airflow into or out of the underground space 1.

[0046] Reference Figure 1 and Figure 4 The passive lighting assembly includes several light guide tubes 5 vertically inserted into the soil layer above the underground space 1. Each light guide tube 5 includes a light-collecting cover 51, a tube body 52, and a diffuser 53. The light-collecting cover 51 is fixedly installed at the top of the tube body 52, and the diffuser 53 is fixedly installed at 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 light-collecting cover 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 lighting lamp 6 and a light sensor installed within the underground space 1. The lighting lamp 6 is fixedly installed on the ceiling of the underground space 1 (e.g., by bolts); the light sensor is also fixedly installed on the ceiling of the underground space 1 (e.g., by bolts). The light sensor, such as a light intensity sensor, is used to detect the light intensity within the underground space 1; when the light signal intensity detected by the light sensor is lower than a preset value, the lighting lamp 6 is activated to provide supplemental lighting and a good working field of vision for the user.

[0048] Reference Figure 1 The side wall of the air intake 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 motorized louver is installed in the first air vent 21, and an air intake fan is installed in the second air vent 22. When the first motorized louver is opened, the airflow in the air intake shaft 2 can flow into the underground space 1 through the first air vent 21 and the second air vent 22 (the fan blades connected to the air intake fan cannot completely block the second air vent 22). When the first motorized louver is closed and the air intake fan is turned on, the airflow in the air intake shaft 2 can be driven into the underground space 1 (closing the first motorized louver is to prevent backflow of airflow between the first air vent 21 and the second air vent 22).

[0049] Reference Figure 1 The side wall of the exhaust shaft 3 is equipped with a third air vent and a fourth air vent, which are respectively connected to the underground space 1. A second motorized louver is installed in the third air vent, and the exhaust fan is installed in the fourth air vent. When the second motorized louver is opened, the airflow in the underground space 1 can flow into the exhaust shaft 3 through the third and fourth air vents (the fan blades connected to the exhaust fan cannot completely block the second air vent 22). When the second motorized louver is closed and the exhaust fan is turned on, the airflow in the underground space 1 can be driven into the exhaust shaft 3 (closing the second motorized louver is to prevent backflow of airflow between the third and fourth air vents).

[0050] The intake fan is fixedly installed inside the second air vent 22 via a support frame, and the exhaust fan is fixedly installed inside the fourth air vent via a support bracket. Both the support frame and the support bracket are standard existing technology in the industry, and their specific structures will not be described in detail.

[0051] Reference Figure 5 The bottom of the air intake shaft 2 is provided with a partition plate 23. The sides and bottom of the partition plate 23 form U-shaped flow channels 24 for depositing impurity particles (such as dust) in the fresh air. The partition plate 23 is fixedly installed on the inner wall of the air intake shaft 2 by bolts or welding. The vertical cross-section of the partition plate 23 is an inverted L-shape.

[0052] Reference Figures 6-7The bottom of the air intake shaft 2 is equipped with a horizontally retractable dust collection box 25, which is located below the partition plate 23 when inserted into the air intake shaft 2. The dust collection box 25 has a U-shaped cross-section to collect falling impurity particles. When the airflow passes through the U-shaped flow channel 24, the impurity particles fall into the dust collection box 25 (under the action of their own gravity and centrifugal force), thus preventing the impurity particles from entering the underground space 1 with the airflow.

[0053] Reference Figures 6-8 A recess 11 is provided at the ground edge of the underground space 1. The dust collection box 25 is placed in the recess 11 and can move laterally under the action of human or mechanical force (e.g., a robotic arm). A pressing block 111 with a fan-shaped vertical cross-section and capable of rotation is provided in the recess 11. The middle part of the pressing block 111 is rotatably connected (e.g., hinged) to the top of the side wall of the recess 11 away from the air intake shaft 2. The pressing block 111 can rotate to abut against the dust collection box 25 (see reference). Figure 6 ), or rotate it to the position where it is pressed against the surface of the underground space 1 (refer to Figure 7 ).

[0054] The surface of the underground space 1 is provided with a water-retaining slope (e.g., fixed by concrete pouring) to prevent sewage in the water storage tank from flowing into the pit 11.

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

[0056] Reference Figure 6 and Figure 8The inner wall of the air intake shaft 2 is provided with a limiting block 26 (e.g., fixed by welding or bolts). The limiting block 26 can abut against and limit the upper surface of the end of the dust collection box 25 away from the pressing arc surface 251. Since the outer arc surface presses against the pressing arc surface 251 in a downward angle, the side of the dust collection box 25 away from the pressing arc surface 251 tends to tilt upwards. The limiting block 26 is used to avoid this upward tilting problem and ensure the installation stability of the dust collection box 25 (the side of the dust collection box 25 away from the pressing arc surface 251 tilts upwards, so that...). Figure 6 Taking the shown perspective as an example, the dust collection box 25 tends to rotate clockwise, which will further block the left side of the U-shaped flow channel 24.

[0057] Unlike traditional dust removal techniques, the airflow entering through the air intake shaft 2 in this invention contains moisture. This moisture comes into contact with impurity particles in the dust collection box 25 and then evaporates naturally, causing the impurity particles to clump together and adhere to the dust collection box 25. Therefore, traditional dust removal techniques are ineffective in removing these impurity particles. In this invention, after the user unscrews the pressing block 111, the dust collection box 25 can be pulled out laterally from the air intake shaft 2 and then extracted through the recess 11. This allows the dust collection box 25 and the impurity particles inside it to be removed together, facilitating subsequent cleaning (e.g., using a high-pressure water gun or brush to remove impurity particles adhering to the inner wall of the dust collection box 25), thus improving operational convenience.

[0058] Reference Figure 7 The bottom of the side wall of the air inlet shaft 2 is provided with a receiving opening 27, which provides an insertion space for the dust collection box 25. When the dust collection box 25 is inserted into the air inlet shaft 2, the side wall of the dust collection box 25 can be fitted to seal the receiving opening 27, thereby preventing air and dust leakage. The bottom surface of the dust collection box 25 is provided with casters, which facilitates the lateral movement of the dust collection box 25.

[0059] A method for the operation and maintenance of a low-carbon, fully underground sewage treatment system, including operation and maintenance methods.

[0060] The operation method includes: when the personnel detection module detects personnel entering underground space 1, the active ventilation and active lighting components are activated; when the personnel detection module does not detect personnel entering underground space 1, the passive ventilation and passive lighting components are activated. Since the low-carbon fully underground sewage treatment system operates under normal conditions using unmanned operation modules (i.e., functional robots have low requirements for oxygen and light), natural ventilation (i.e., passive ventilation components) and natural lighting (i.e., passive lighting components) are sufficient for ventilation and lighting of underground space 1. When personnel enter underground space 1, the active ventilation and active lighting components are activated to ensure the personnel's oxygen and light supply, ensuring their personal safety and providing good visibility. The personnel detection module, for example, uses a satellite positioning system to locate the personnel's personal electronic devices (e.g., mobile phones) to determine whether the personnel have entered the low-carbon fully underground sewage treatment system and which specific underground space 1 they are 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, grasp the first handle on the surface of the pressing block 111, unscrew the pressing block 111 from the recess 11, and then press the pressing block 111 (naturally) against the ground surface of the underground space 1; S2, grasp the second handle on the outer wall of the dust collection box 25, pull the dust collection box 25 out of the air intake shaft 2, and place the dust collection box 25 in the recess 11; S3, lift the dust collection box 25 and remove it from the recess 11; S4, clean the impurity particles in the dust collection box 25; S5, place the dust collection box 25 into the recess 11 and push it into the air intake shaft 2; S6, grasp the first handle on the surface of the pressing block 111, unscrew the pressing block 111 into the recess 11, and press the outer arc surface against the pressing arc surface 251.

[0062] When the crimping block 111 is screwed into the recess 11, the bottom end of the crimping block 111 presses against the bottom surface of the inner cavity of the recess 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 pressed onto the crimping block 111, it will not cause the crimping block 111 to bend or sink. Therefore, the functional robot does not need to avoid the recess 11, thus having the largest possible range of motion.

[0063] The low-carbon, fully underground sewage treatment system also includes an electrical cabinet, which is bolted to the top of the side wall of the underground space 1. The air intake fan, exhaust fan, light sensor, lighting lamp 6, first electric louver, and second electric louver are connected to the electrical cabinet via wires and signal lines. The electrical cabinet is connected to the external power supply and external computer via wires and signal lines. The functional robot is wirelessly connected to the external computer. The computer controls the start and stop of the air intake fan, exhaust fan, light sensor, lighting lamp 6, first electric louver, second electric louver, and functional robot in this invention.

[0064] The low-carbon, fully underground wastewater treatment system also includes an intelligent monitoring module. This module comprises sensors (such as pH, pressure, level, oxygen, ammonia, and nitrogen sensors to monitor various parameters during wastewater treatment) and cameras installed in the underground space. The cameras are equipped with night vision, heat source monitoring, and voiceprint recognition components. The sensors and cameras are connected to the electrical cabinet via wires and signal lines, respectively. An external computer is located in the above-ground control room. Monitoring personnel in the control room can assess the operational status of each stage of the wastewater treatment process using data collected by the intelligent monitoring module. When abnormal gas parameters are detected in a certain underground space (e.g., oxygen content below the threshold, ammonia content above the threshold), the active ventilation system is activated to accelerate air exchange, and an inspection robot travels to that underground space to collect data or perform collaborative operations. When abnormal light parameters are detected in a certain underground space, the active lighting system is activated to provide supplemental lighting, and an inspection robot travels to that underground space to collect data or perform collaborative operations. The ceiling of the underground space is equipped with skylights for natural light. When there is sufficient natural light (as monitored by the light sensor), the camera enters a low-power mode and only enables color recognition; when there is insufficient natural light, the built-in night vision component (i.e., infrared fill light component) is activated.

[0065] Underground space 1 is a basement.

[0066] This invention has a simple structure and reliable function. When no one is 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. Passive ventilation components and passive lighting components are used to ventilate and illuminate the underground space 1, resulting in low energy consumption. When personnel enter the underground space 1, active ventilation components and active lighting components are used to enhance ventilation and lighting intensity, ensure the safety of personnel and provide good visibility, thereby facilitating underground operations.

[0067] In the description of this invention, it should be noted that the terms "upper," "lower," "left," "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0068] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0069] In conclusion, for those skilled in the art, any changes, modifications, substitutions, or variations made to this invention based on the guidance of this invention, without departing from the principles and spirit of this invention, still fall within the protection scope of this invention.

Claims

1. A low-carbon, fully underground sewage treatment system, characterized in that: 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 several functional robots; the functional robots include inspection robots, sampling robots, and garbage and sludge transfer robots; the intelligent ventilation module includes an air intake shaft (2), an exhaust shaft (3), a passive ventilation component, and an active ventilation component; the passive ventilation component includes a wind-catching device (4) installed at the top of the air intake shaft (2) and capable of rotation; the active ventilation component includes an air intake fan installed in the air intake shaft (2) and / or an exhaust fan installed in the exhaust shaft (3); the intelligent lighting module includes a passive lighting component and an active lighting component; the passive lighting... The component includes several light guide tubes (5) longitudinally inserted into the soil layer above the underground space (1); the active lighting component includes a lighting lamp (6) and a light sensor installed in the underground space (1); the side wall of the air intake shaft (2) is provided with a first air vent (21) and a second air vent (22) respectively connected to the underground space (1), a first motorized louver is installed in the first air vent (21), and the air intake fan is installed in the second air vent (22); the side wall of the exhaust shaft (3) is provided with a third air vent and a fourth air vent respectively connected to the underground space (1), and a second motorized louver is installed in the third air vent. The exhaust fan is installed inside the fourth air inlet; the wind-catching device (4) includes a wind-catching shell (41) and a first tail fin (42); the wind-catching shell (41) has an air inlet and a first tail fin (42) respectively on its two opposite side walls; the exhaust shaft (3) is equipped with a rotatable exhaust device (7); the exhaust device (7) includes a cover (71) and a second tail fin (72); the cover (71) has an exhaust port and a second tail fin (72) on the same side wall; the bottom of the air inlet shaft (2) is equipped with a dust collection box (25) that can be pulled out laterally, and the dust collection box (25) has a U-shaped vertical cross section; the underground space ( 1) A recess (11) is provided at the edge of the ground. A pressing block (111) with a fan-shaped vertical cross section and capable of rotation is provided in the recess (11). The pressing block (111) has an outer arc surface. The upper part of the outer wall of the dust collection box (25) is provided with a pressing arc surface (251) adapted to the outer arc surface. When the pressing block (111) rotates to the point where the outer arc surface presses against the pressing arc surface (251), it can limit the dust collection box (25). The inner wall of the air inlet shaft (2) is provided with a limiting block (26). The limiting block (26) can abut against and limit the upper surface of the end of the dust collection box (25) away from the pressing arc surface (251).

2. The low-carbon, fully underground sewage treatment system according to claim 1, characterized in that: The bottom of the air intake shaft (2) is provided with a partition plate (23), and the sides and bottom of the partition plate (23) form a U-shaped flow channel (24) for depositing impurity particles in the fresh air.

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