Semi-closed semi-underground sewage treatment system

Abstract

The utility model discloses a semi-closed semi-underground sewage treatment system, which relates to the technical field of sewage treatment and comprises a room body with the middle lower part buried in a soil layer, a first partition wall and a second partition wall are arranged in the room body, the first partition wall is vertically arranged, a first air duct is arranged between the first partition wall and the corresponding outer wall, and the second partition wall is vertically arranged, and a second air duct is arranged between the second partition wall and the corresponding outer wall; a first splitter plate is arranged at the top end of the first partition wall and can longitudinally move to block or open a top end opening of the first air duct; a second splitter plate is arranged above the second partition wall and can move longitudinally to block or open a top end opening of the second air duct. External airflow flowing in through the shutter assembly is shunted through the first shunting plate or the second shunting plate, one part of the airflow transversely flows at the top of the inner cavity of the room body, the other part of the airflow flows along the middle or the bottom of the inner cavity of the room body, and therefore overall ventilation of the inner cavity of the room body is achieved, and ventilation blind areas are avoided.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a semi-enclosed, semi-underground wastewater treatment system. Background Technology

[0002] Semi-enclosed, semi-underground sewage treatment systems refer to sewage treatment facilities that are partially built underground. Due to their smaller footprint, they can better adapt to the spatial layout of cities and improve the utilization rate of urban space.

[0003] Semi-enclosed, semi-underground wastewater treatment systems typically have ventilation structures installed at the top of the exterior walls, allowing these structures to be exposed and receive external airflow. Because these ventilation structures are located at the top of the system's interior, airflow in the lower and middle sections is relatively low, resulting in insufficient uniform ventilation. Furthermore, due to the low-lying location of these systems, carbon dioxide and water vapor accumulate in the lower and middle sections. Excessive carbon dioxide levels can threaten the safety of personnel inside, while excessive water vapor levels can accelerate the corrosion of easily corroded components (such as wastewater treatment equipment and steel parts inside monitoring robots). Summary of the Invention

[0004] In order to overcome the problem of "low air flow in the lower part of the inner cavity of the semi-enclosed semi-underground sewage treatment system" in the above-mentioned background technology, this utility model provides a semi-enclosed semi-underground sewage treatment system.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is:

[0006] A semi-enclosed, semi-underground sewage treatment system includes a chamber buried in the soil at its lower and middle parts; windows are respectively provided at the top of two opposite exterior walls of the chamber, and louvered components are installed in each of the two windows; a light guide tube is inserted into the top surface of the chamber; a first partition wall and a second partition wall are provided inside the chamber, the first partition wall and the second partition wall being located on the inner sides of the two exterior walls; a first air duct is provided between the first partition wall and the corresponding exterior wall, and a second air duct is provided between the second partition wall and the corresponding exterior wall; a first fan is provided at the bottom opening of the first air duct, and a second fan is provided at the bottom opening of the second air duct; a first diversion plate is provided at the top of the first partition wall, and the first diversion plate can move longitudinally to block or open the top opening of the first air duct; a second diversion plate is provided above the second partition wall, and the second diversion plate can move longitudinally to block or open the top opening of the second air duct.

[0007] As a further optimization of this utility model, the first diversion plate includes a first horizontal plate and a first vertical plate fixedly connected in a figure-7 shape, the first horizontal plate pointing towards the louver assembly on the same side; the first horizontal plate can be moved upward to be level with the middle height of the louver assembly on the same side.

[0008] As a further optimization of this utility model, the first longitudinal plate is longitudinally slidably connected to the side wall of the first partition wall near the second partition wall.

[0009] As a further optimization of this utility model, the second diversion plate includes a second horizontal plate and a second vertical plate fixedly connected in a U-shape; the second horizontal plate points to the louver assembly on the same side; the second horizontal plate can be moved upward to be flush with the middle height of the louver assembly on the same side.

[0010] As a further optimization of this utility model, the second longitudinal plate is longitudinally slidably connected to the side wall of the second partition wall near the first partition wall.

[0011] As a further optimization of this utility model, the first longitudinal plate is connected to the first partition wall through a first slide rail assembly; a first linear driver is longitudinally arranged on the side wall of the first partition wall near the second partition wall, and the output shaft of the first linear driver is fixedly connected to the first longitudinal plate.

[0012] As a further optimization of this utility model, the second longitudinal plate is connected to the second partition wall through a second slide rail assembly; a second linear actuator is longitudinally arranged on the side wall of the second partition wall near the first partition wall, and the output shaft of the second linear actuator is fixedly connected to the second longitudinal plate.

[0013] As a further optimization of this utility model, the bottom of the first partition wall is provided with a first wind tunnel, and the first fan is installed in the first wind tunnel; the bottom of the second partition wall is provided with a second wind tunnel, and the second fan is installed in the second wind tunnel.

[0014] As a further optimization of this utility model, the louver assembly includes an outer frame and a plurality of louvers disposed within the outer frame and capable of rotation.

[0015] As a further optimization of this utility model, the louver includes a support shaft and a blade body. The support shaft is longitudinally inserted into the middle of the blade body and fixedly connected. A magnetic sheet and an iron sheet are respectively provided in the left and right ends of the blade body. The magnetic sheet and the iron sheet can attract each other so that the ends of adjacent blade bodies fit together.

[0016] In summary, this utility model has at least one of the following advantages:

[0017] (1) The present invention has a simple structure and reliable function. It diverts the external airflow that flows in through the louver assembly by using the first or second diversion plate. Part of the airflow flows laterally at the top of the chamber cavity, and the other part flows along the middle or bottom of the chamber cavity, thereby achieving overall ventilation of the chamber cavity and avoiding ventilation blind spots. The present invention can discharge harmful fluids (such as carbon dioxide and water vapor) in the lower part of the chamber cavity, ensuring the safety of staff and easily corroded components.

[0018] (2) In the louver assembly, magnetic sheets and iron sheets are respectively provided at the left and right ends of the slats. The magnetic sheets and iron sheets can attract each other to make the ends of adjacent slats fit together, thereby making the louver assembly have better sealing when closed and avoiding the problem that the edges of adjacent slats cannot fit tightly due to slat bending. At the same time, after the edges are attracted to each other by magnetic force, the wind resistance of the slats is stronger, avoiding the problem of air leakage caused by gaps between adjacent slats when blown by the wind. Attached Figure Description

[0019] The present application will be further explained below with reference to the accompanying drawings:

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 A schematic diagram showing the connection structure between the outer frame and the louvers;

[0022] Figure 3 This is a right-side view of the louvered window assembly structure.

[0023] Figure 4 A top view diagram showing the installation positions and structure of the iron sheet and magnetic sheet;

[0024] Figure 5 A top-view schematic diagram showing the mutual adsorption state at the tips of the leaf blades;

[0025] Figure 6 A schematic diagram showing the location and structure of the first and second partition walls;

[0026] Figure 7 A schematic diagram showing the state of the second air duct being blocked by the second diversion plate;

[0027] Figure 8 This is a schematic diagram showing the location and structure of the first distributor plate;

[0028] Figure 9 This is a schematic diagram showing the location and structure of the second splitter plate;

[0029] Figure 10 This is a schematic diagram showing the flow of external air into the right-side louver assembly.

[0030] Explanation of reference numerals in the attached figures:

[0031] In the picture,

[0032] 1. Body; 11. Venetian blind assembly; 111. Outer frame; 1111. First receiving cavity; 1112. Second receiving cavity; 112. Venetian blind; 1121. Support shaft; 1122. Blade body; 1123. Magnetic sheet; 1124. Iron sheet; 113. Drive structure; 1131. Drive motor; 1132. First gear; 1133. Second gear; 12. Light guide tube;

[0033] 2. Soil layer;

[0034] 3. First partition wall; 30. First air duct; 31. First fan; 32. Second diverter plate; 321. First horizontal plate; 322. First vertical plate; 33. First slide rail assembly; 34. First linear actuator;

[0035] 4. Second partition wall; 40. Second air duct; 41. Second fan; 42. Second diverter plate; 421. Second horizontal plate; 422. Second vertical plate; 43. Second slide rail assembly; 44. Second linear actuator. Detailed Implementation

[0036] Based on the above-described structural features of this application, the implementation methods of this application will be further described as follows:

[0037] Reference Figure 1 This embodiment provides a semi-enclosed, semi-underground sewage treatment system, including a building 1 buried in the soil layer 2 in its middle and lower parts. The upper part of the building 1 protrudes from the surface of the soil layer 2 to support above-ground facilities (such as playgrounds, parks, etc.). Windows are respectively provided at the top of the two opposite exterior walls of the building 1, arranged side-by-side; each window is equipped with a louver assembly 11; the louver assembly 11 can be electrically opened and closed to adjust the air intake / exhaust volume. A light guide tube 12 is inserted into the top surface of the building 1, penetrating the floor slab of the top surface of the building 1, thereby transmitting external light into the interior of the building 1 for illumination.

[0038] Reference Figures 1-3 The louver assembly 11 includes an outer frame 111 and a plurality of louvers 112 disposed within the outer frame 111 and capable of rotation. The plurality of louvers 112 are arranged in a linear array with equal spacing within the outer frame 111. The outer frame 111 is fixedly installed inside the window (e.g., by integral casting and fixing with concrete or by fixing with expansion bolts).

[0039] Reference Figures 2-3The louver 112 includes a support shaft 1121 and a blade 1122. The support shaft 1121 is longitudinally inserted into the middle of the blade 1122 and fixedly connected (e.g., by bolts). The blade 1122 has an upright rectangular plate structure, and the support shaft 1121 has an upright straight rod structure. When the support shaft 1121 rotates, it can drive the blade 1122 to rotate. An air inlet gap is formed between adjacent blades 1122. By adjusting the rotation angle of the blade 1122 through the support column, the width of the air inlet gap can be adjusted, thereby further adjusting the air intake / exhaust volume.

[0040] Reference Figure 2 and Figure 3 The outer frame 111 has a sun-shaped structure; the outer frame 111 has a first receiving cavity 1111 and a second receiving cavity 1112 located below the first receiving cavity 1111. The louvers 112 are disposed in the first receiving cavity 1111, and the top and bottom ends of the support shaft 1121 are rotatably disposed with the top and bottom surfaces of the first receiving cavity 1111, respectively (e.g., connected by bearings).

[0041] Reference Figure 2 and Figure 3 The venetian blind assembly 11 also includes a drive structure 113, which includes a drive motor 1131, a first gear 1132, and a second gear 1133. Several first gears 1132 and several second gears 1133 are provided, and the first gears 1132 and second gears 1133 are alternately arranged, with adjacent first gears 1132 and second gears 1133 meshing with each other. A first axle is inserted and fixed to the middle of the first gear 1132, and the first axle is coaxially arranged with the support shaft 1121. The top end of the first axle is fixed to the support shaft 1121. The first wheel axle is rotatably connected to the outer frame 111 (e.g., via bearings) at its bottom end; a second wheel axle is inserted and fixed in the middle, and both ends of the second wheel axle are rotatably connected to the outer frame 111 (e.g., via bearings); the output shaft of the drive motor 1131 is connected to any of the first wheel axles (either directly or indirectly), and the drive motor 1131 is installed in the mounting groove on the bottom surface of the second receiving cavity 1112. The housing of the drive motor 1131 is fixedly connected to the side wall of the mounting groove (e.g., via bolts). The drive motor 1131 can drive all the first gears 1132 to rotate at the same speed and in the same direction, thereby driving all the louvers 112 to rotate at the same speed and in the same direction to the same angle.

[0042] The output shaft of the drive motor 1131 is inserted into the insertion hole at the bottom end face of the first wheel shaft and fixed by bolts to achieve direct connection.

[0043] The output shaft of the drive motor 1131 is indirectly connected to the first wheel shaft via a reducer. The reducer is located in the lower groove on the bottom surface of the second receiving cavity 1112, and the reducer housing is fixedly connected to the inner wall of the lower groove (e.g., by bolts).

[0044] The openings at both ends of the second receiving cavity 1112 are sealed by sealing plates. The sealing plates are fixedly connected to the outer frame 111 by bolts and sealing strips. The sealing plates are used to prevent dust from entering the second receiving cavity 1112, thereby preventing the first gear 1132 and the second gear 1133 from jamming together.

[0045] Reference Figures 4-5 The blade 1122 has a magnetic piece 1123 and an iron piece 1124 at its left and right ends, respectively. The magnetic piece 1123 and the iron piece 1124 can attract each other, so that the ends of adjacent blades 1122 fit together. This results in better sealing when the louver assembly 11 is closed, preventing the blades 1122 from bending (e.g., bending caused by changes in internal stress due to external temperature changes), which would prevent the edges of adjacent blades 1122 from fitting tightly. At the same time, the magnetic attraction between the edges strengthens the wind resistance of the blades 1122, preventing gaps between adjacent blades 1122 and air leakage caused by wind.

[0046] Reference Figure 6 and Figure 7 The building 1 contains a first partition wall 3 and a second partition wall 4. The first partition wall 3 is fixedly connected to the outer wall (e.g., by integral casting with concrete), and the second partition wall 4 is also fixedly connected to the outer wall (e.g., by integral casting with concrete). The first partition wall 3 and the second partition wall 4 are located on the inner sides of the two outer walls. The first partition wall 3 is vertical and has a first air duct 30 between it and the corresponding outer wall. The second partition wall 4 is vertical and has a second air duct 40 between it and the corresponding outer wall. A first fan 31 is installed at the bottom opening of the first air duct 30, and a second fan 41 is installed at the bottom opening of the second air duct 40.

[0047] by Figure 6 Taking the perspective shown as an example, when the outside wind direction is more inclined to point towards the left side of the exterior wall, the first fan 31 and the second fan 41 are activated. The first fan 31 is used to extract the air in the first air duct 30, and the second fan 41 is used to press the gas into the second air duct 40, so that the outside airflow flows in from the louver 112 window on the left side and flows out from the louver assembly 11 on the right side, thereby realizing the ventilation of the room 1.

[0048] Conversely, with Figure 10Taking the shown perspective as an example, when the outside wind direction is more inclined to point towards the right side of the outer wall, the first fan 31 and the second fan 41 are activated (making the first fan 31 rotate in the opposite direction and the second fan 41 rotate in the opposite direction). The first fan 31 is used to compress air into the first air duct 30, and the second fan 41 is used to extract the gas in the second air duct 40, so that the outside airflow flows in from the right louver 112 window and flows out from the left louver assembly 11, thereby realizing the ventilation of the room 1.

[0049] Reference Figure 6 and Figure 7 The first partition wall 3 has a first diversion plate at its top, which can move longitudinally to block or open the top opening of the first air duct 30. The second partition wall 4 has a second diversion plate 42 above it, which can move longitudinally to block or open the top opening of the second air duct 40.

[0050] Reference Figure 6 , Figure 7 and Figure 8 The first diversion plate includes a first horizontal plate 321 and a first vertical plate 322 fixedly connected in a figure-7 shape (e.g., by an integral fixed connection). The first horizontal plate 321 points towards the louver assembly 11 on the same side. The first horizontal plate 321 can be moved upward to be flush with the middle height of the louver assembly 11 on the same side. The first vertical plate 322 is longitudinally slidably connected to the side wall of the first partition wall 3 near the second partition wall 4.

[0051] Reference Figure 6 , Figure 7 and Figure 9 The second diversion plate 42 includes a second horizontal plate 421 and a second vertical plate 422 fixedly connected in a U-shape (e.g., by an integral fixed connection); the second horizontal plate 421 points towards the louver assembly 11 on the same side; the second horizontal plate 421 can move upward to be flush with the middle height of the louver assembly 11 on the same side. The second vertical plate 422 is longitudinally slidably connected to the side wall of the second partition wall 4 near the first partition wall 3.

[0052] Reference Figure 6 , Figure 8 and Figure 9 When the first horizontal plate 321 is located at the middle height of the corresponding louver assembly 11 and the second horizontal plate 421 is located at the middle height of the corresponding louver assembly 11, the top openings of the first air duct 30 and the second air duct 40 are both open. Then, the external airflow enters the louver assembly 11 on the left and is divided into two parts by the first horizontal plate 321. One part of the airflow flows laterally at the top of the cavity of the room 1 and flows out through the louver assembly 11 on the right. The other part of the airflow flows along the first air duct 30, the bottom of the cavity of the room 1, and the second air duct 40 and flows out through the louver assembly 11 on the right. This achieves ventilation of the cavity of the room 1, and the ventilation effect on the top and bottom of the cavity of the room 1 is particularly obvious.

[0053] Reference Figure 7 , Figure 8 and Figure 9 When the first horizontal plate 321 is located at the middle height of the corresponding louver assembly 11 and the second horizontal plate 421 is fastened to the top opening of the second air duct 40, the top opening of the first air duct 30 is opened and the top opening of the second air duct 40 is closed. Then, the external airflow enters the louver assembly 11 on the left and is divided into two parts by the first horizontal plate 321. One part of the airflow flows laterally at the top of the cavity of the room 1 and flows out through the louver assembly 11 on the right. The other part of the airflow flows along the first air duct 30 and the middle of the cavity of the room 1 and flows out through the louver assembly 11 on the right. This achieves ventilation of the cavity of the room 1, and the ventilation effect on the top and middle of the cavity of the room 1 is particularly obvious.

[0054] Conversely, when the top opening of the first air duct 30 is closed and the top opening of the second air duct 40 is open, the air coming from the right side can be used to ventilate the interior of the chamber 1, and the ventilation effect on the top and middle of the interior of the chamber 1 is particularly obvious.

[0055] Reference Figure 8 The first longitudinal plate 322 is connected to the first partition wall 3 via a first slide rail assembly 33. A first linear actuator 34 is longitudinally arranged on the side wall of the first partition wall 3 near the second partition wall 4. The output shaft of the first linear actuator 34 is fixedly connected to the first longitudinal plate 322, and the housing of the first linear actuator 34 is fixedly connected to the first partition wall 3 (e.g., by expansion bolts). The first linear actuator 34 can drive the first diverter plate to move longitudinally.

[0056] Reference Figure 9 The second longitudinal plate 422 is connected to the second partition wall 4 via a second slide rail assembly 43. A second linear actuator 44 is longitudinally arranged on the side wall of the second partition wall 4 near the first partition wall 3. The output shaft of the second linear actuator 44 is fixedly connected to the second longitudinal plate 422, and the housing of the second linear actuator 44 is fixedly connected to the second partition wall 4 (e.g., by expansion bolts). The second linear actuator 44 can drive the second diverter plate 42 to move longitudinally.

[0057] Reference Figure 7 , Figure 8 and Figure 9 The first slide rail assembly 33 and the first linear actuator 34 are installed on the side wall of the first partition wall 3 near the second partition wall 4, thereby facing away from the louver assembly 11 on the left side and reducing the probability that the first slide rail assembly 33 and the first linear actuator 34 will be stuck by dust in the intake airflow. Similarly, the second slide rail assembly 43 and the second linear actuator 44 are installed on the side wall of the second partition wall 4 near the first partition wall 3, thereby facing away from the louver assembly 11 on the right side and reducing the probability that the second slide rail assembly 43 and the second linear actuator 44 will be stuck by dust in the intake airflow.

[0058] The bottom of the first partition wall 3 is provided with a first wind tunnel, and the first fan 31 is installed in the first wind tunnel; the bottom of the second partition wall 4 is provided with a second wind tunnel, and the second fan 41 is installed in the second wind tunnel.

[0059] Both the first slide rail assembly 33 and the second slide rail assembly 43 adopt a slide rail structure. The slide rail structure includes a slider and a slide rail. The slider has a C-shaped cross-section, and the slide rail has a gourd-shaped cross-section. The slider is fastened to the slide rail to prevent it from falling off. The slider can slide back and forth along the length of the slide rail.

[0060] Both the first linear actuator 34 and the second linear actuator 44 employ electric actuators or electro-hydraulic actuators.

[0061] This utility model also includes an electrical cabinet, which is bolted to the side wall of the first partition wall 3 near the second partition wall 4. The first fan 31, the second fan 41, the first linear actuator 34, the second linear actuator 44, and the drive motor 1131 are all connected to the electrical cabinet via wires and signal lines. The electrical cabinet is connected to the external power supply and the external computer via wires and signal lines. The computer controls the start and stop of the first fan 31, the second fan 41, the first linear actuator 34, the second linear actuator 44, and the drive motor 1131 through the electrical cabinet.

[0062] The iron sheet 1124 is made of iron-containing metal material (such as No. 45 steel), and the magnetic sheet 1123 is made of permanent magnet material (such as AlNiCo permanent magnet alloy, IronChromiumCo permanent magnet alloy, permanent magnet ferrite, etc.).

[0063] This utility model has a simple structure and reliable function. It diverts the external airflow flowing in through the louver assembly 11 by using a first or second diversion plate 42. Part of the airflow flows laterally at the top of the inner cavity of the chamber 1, while the other part flows along the middle or bottom of the inner cavity of the chamber 1, thereby achieving overall ventilation of the inner cavity of the chamber 1 and avoiding ventilation blind spots. This utility model can also discharge harmful fluids (such as carbon dioxide and water vapor) from the lower part of the inner cavity of the chamber 1, ensuring the safety of staff and easily corroded components.

[0064] In the description of this utility model, 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 utility model 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 utility model.

[0065] In the description of this utility model, 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 utility model according to the specific circumstances.

[0066] In conclusion, for those skilled in the art, any changes, modifications, substitutions, or variations made to this utility model based on its guidance, without departing from its principles and spirit, shall still fall within the protection scope of this utility model.

Claims

1. A semi-enclosed, semi-underground sewage treatment system, characterized in that: The room (1) is buried in the soil layer (2) in the middle and lower part; the top of the two opposite outer walls of the room (1) are respectively provided with windows, and louvered window components (11) are installed in the two windows respectively; a light guide tube (12) is inserted into the top surface of the room (1); The room body (1) is provided with a first partition wall (3) and a second partition wall (4), which are respectively located on the inner sides of the two outer walls; the first partition wall (3) is upright and a first air duct (30) is provided between it and the corresponding outer wall, and the second partition wall (4) is upright and a second air duct (40) is provided between it and the corresponding outer wall; a first fan (31) is provided at the bottom opening of the first air duct (30), and a second fan (41) is provided at the bottom opening of the second air duct (40); The first partition wall (3) is provided with a first diversion plate at the top. The first diversion plate can move longitudinally to block or open the top opening of the first air duct (30). A second diversion plate (42) is provided above the second partition wall (4). The second diversion plate (42) can move longitudinally to block or open the top opening of the second air duct (40).

2. The semi-enclosed, semi-underground sewage treatment system according to claim 1, characterized in that: The first diversion plate includes a first horizontal plate (321) and a first vertical plate (322) fixedly connected in a figure-7 shape. The first horizontal plate (321) points to the louver assembly (11) on the same side. The first horizontal plate (321) can be moved upward to be level with the middle height of the louver assembly (11) on the same side.

3. The semi-enclosed, semi-underground sewage treatment system according to claim 2, characterized in that: The first longitudinal plate (322) is longitudinally slidably connected to the side wall of the first partition wall (3) near the second partition wall (4).

4. The semi-enclosed, semi-underground sewage treatment system according to claim 3, characterized in that: The second diversion plate (42) includes a second horizontal plate (421) and a second vertical plate (422) fixedly connected in a U-shape; the second horizontal plate (421) points to the louver assembly (11) on the same side; the second horizontal plate (421) can be moved upward to be flush with the middle height of the louver assembly (11) on the same side.

5. The semi-enclosed, semi-underground sewage treatment system according to claim 4, characterized in that: The second longitudinal plate (422) is longitudinally slidably connected to the side wall of the second partition wall (4) near the first partition wall (3).

6. The semi-enclosed, semi-underground sewage treatment system according to claim 5, characterized in that: The first longitudinal plate (322) is connected to the first partition wall (3) via a first slide rail assembly (33); a first linear driver (34) is longitudinally arranged on the side wall of the first partition wall (3) near the second partition wall (4), and the output shaft of the first linear driver (34) is fixedly connected to the first longitudinal plate (322).

7. The semi-enclosed, semi-underground sewage treatment system according to claim 6, characterized in that: The second longitudinal plate (422) is connected to the second partition wall (4) via a second slide rail assembly (43); a second linear actuator (44) is longitudinally arranged on the side wall of the second partition wall (4) near the first partition wall (3), and the output shaft of the second linear actuator (44) is fixedly connected to the second longitudinal plate (422).

8. The semi-enclosed, semi-underground sewage treatment system according to claim 7, characterized in that: The bottom of the first partition wall (3) is provided with a first wind tunnel, and the first fan (31) is installed in the first wind tunnel; the bottom of the second partition wall (4) is provided with a second wind tunnel, and the second fan (41) is installed in the second wind tunnel.

9. The semi-enclosed, semi-underground sewage treatment system according to claim 8, characterized in that: The louver assembly (11) includes an outer frame (111) and a plurality of louvers (112) disposed within the outer frame (111) and capable of rotation.

10. The semi-enclosed, semi-underground sewage treatment system according to claim 9, characterized in that: The louver (112) includes a support shaft (1121) and a blade (1122). The support shaft (1121) is longitudinally inserted into the middle of the blade (1122) and fixedly connected. A magnetic sheet (1123) and an iron sheet (1124) are respectively provided in the left and right ends of the blade (1122). The magnetic sheet (1123) and the iron sheet (1124) can attract each other so that the ends of adjacent blades (1122) are attached together.

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