A sewage treatment plant decoration structure and construction method

Abstract

The present application relates to the technical field of industrial building decoration engineering construction, and particularly relates to a sewage treatment plant decoration structure and a construction method, which solve the technical problem that there is no technology in the prior art for homogenizing the indoor wall surface temperature of a sewage treatment plant through a decoration layer, effectively dredging corrosive gas, improving air circulation in the plant, and ensuring the thermal insulation effect of the outer wall, comprising a wall body prefabricated component having a pipe body, the pipe body being connected to the interior and exterior of the wall body; a connecting component being connected to the end of the pipe body inside the wall body and being capable of forming fixed connection with the inner wall of the wall body; a decoration plate connecting component being capable of being connected with the connecting component, the decoration plate connecting component having a comb tooth piece arranged in the direction connected with the pipe body; a matching end being used for matching, positioning and connecting an inner decoration plate, a cavity being formed between the inner decoration plate and the inner wall of the wall body; the part of the pipe body outside the wall body penetrating through a thermal insulation layer to connect a negative pressure pipe assembly, the negative pressure pipe assembly guiding the air in the plant to the discharge end of the negative pressure pipe assembly through negative pressure.

Description

Technical Field

[0001] This invention relates to the field of construction technology for industrial building decoration engineering, and in particular to a decorative structure and construction method for a sewage treatment plant. Background Technology

[0002] For the construction of the internal walls of a wastewater treatment plant, corrosion-resistant materials are preferred. These materials need to have technical specifications such as acid and alkali resistance and moisture resistance, such as reinforced concrete walls constructed with corrosion-resistant concrete. The walls should be constructed with waterproof mortar or waterproof coating, and the joints should be sealed.

[0003] The problem with the walls of sewage treatment plant buildings is that the buildings are mostly unit rooms and pump rooms, which leads to a large temperature difference between the two sides of the actual walls. The walls will crack due to thermal expansion and contraction. Therefore, it is necessary to frequently and regularly check the wall cracks, insulation layer peeling or leakage, and repair them in time. Therefore, in the actual design of sewage treatment plant buildings, industrial buildings are mainly used for unit equipment, pump equipment and other complete sets of treatment equipment.

[0004] The interior structural engineering will not be included; only basic piping and drainage facilities will be designed. However, in reality, uneven temperature between the inside and outside of the walls is only one of the problems existing in sewage treatment plants. Other problems currently existing in sewage treatment plants include the corrosive effect of acidic or alkaline corrosive gases and solids generated inside the plant on the inner walls, which undoubtedly exacerbates the damage to the lifespan of the walls. Summary of the Invention

[0005] This invention aims to address the technical problem in the prior art of lacking a decorative layer to homogenize the indoor wall temperature of a wastewater treatment plant, effectively divert corrosive gases, improve air circulation within the plant, and ensure the thermal insulation effect of the external walls. It provides a decorative structure and construction method for a wastewater treatment plant.

[0006] To solve the above-mentioned technical problems, the technical solution of the present invention is as follows:

[0007] A decorative structure for a wastewater treatment plant, comprising:

[0008] Precast wall components having a tube body that connects the interior and exterior of the wall;

[0009] A connecting member is connected to the end of the pipe located inside the wall body, and the connecting member is capable of forming a fixed connection with the inner wall of the wall body;

[0010] A decorative panel connecting member is available for connection to the connecting member and for communication with the pipe body. The decorative panel connecting member has comb teeth arranged in a direction communicating with the pipe body.

[0011] The decorative panel connecting member also has a mating end, which is used to fit, position and connect the inner decorative panel, and a cavity is formed between the inner decorative panel and the inner wall of the wall.

[0012] The portion of the pipe located outside the wall passes through the insulation layer and connects to a negative pressure pipe assembly. The negative pressure pipe assembly guides the air inside the factory to its exhaust end through negative pressure.

[0013] Furthermore, the wall has pre-fabricated holes at equal intervals in the horizontal and vertical directions, into which the pipe is inserted. The length of the pipe is greater than the thickness of the wall, and the pipe is made of PVC pipe or CPVC pipe.

[0014] The portion of the tube body located within the pre-drilled hole is filled with a filling layer.

[0015] Furthermore, the connecting member includes:

[0016] A connector having a plastic liner with internal threads formed thereon, and an external thread provided at the end of the tube body inside the wall body, wherein the connector is screwed onto the tube body;

[0017] The connector is radially connected to multiple connecting frames, which form a cross-claw-shaped structure.

[0018] Each set of connecting frames includes:

[0019] The extended end maintains a predetermined distance from the inner wall of the wall;

[0020] The extension end is connected to an L-shaped fitting, the L-shaped fitting having a fitting end that is in close contact with the inner wall of the wall.

[0021] A perforated positioning component is fixedly installed on the mating end, and is fixedly connected to the inner wall of the wall by anchoring screws passing through the perforated positioning component.

[0022] Furthermore, the connector has a tubular inner cavity;

[0023] The tubular inner cavity is connected to the tube body;

[0024] The side of the connector away from the wall is configured to form a connecting plate;

[0025] The decorative panel connecting components include:

[0026] The decorative connector is fixedly connected to the connecting plate by inserting a locking bolt.

[0027] Furthermore, the comb teeth include:

[0028] The comb-tooth cavity has a decorative connector with a mating screw hole.

[0029] The outer periphery of the comb cavity forms a mating connecting ring, and the mating connecting ring has a mating hole;

[0030] A hexagonal socket head cap screw, which can pass through the mating hole and be screwed into the mating connection screw hole.

[0031] Furthermore, the end of the decorative connector away from the wall is provided with a comb-tooth arrangement plate;

[0032] The comb tooth arrangement plate has multiple through holes and is connected to comb teeth arranged in rows;

[0033] Adjacent comb teeth are arranged at equal intervals;

[0034] The through holes are arranged between the comb teeth in a row;

[0035] The through hole connects to the comb tooth cavity.

[0036] Furthermore, after the comb cavity is fixedly connected to the connecting plate, it has an installation posture in which it is installed;

[0037] The two sets of positioning extensions on the radial sides of the comb cavity are located on the same positioning line, and the positioning line is perpendicular to the horizontal plane.

[0038] The positioning extension has an arc-shaped protrusion, and along the inclined surface formed by the arc-shaped protrusion, the arc-shaped protrusion and the inclined surface form a mating protrusion;

[0039] The upper and lower connection positions of the inner decorative panel facing the wall have multiple matching recesses constructed on them.

[0040] The mating recess and the mating protrusion are joined and bonded together for the installation and positioning of the interior decorative panel, and the working surface of the interior decorative panel is pre-coated with an anti-corrosion coating.

[0041] Furthermore, multiple connecting piles are prefabricated on the inner side wall of the wall, and the connecting piles are arranged between two sets of pipes arranged in a row in the wall.

[0042] The interior trim panel is fixedly connected to the connecting pile by using locking nails.

[0043] An enclosed decorative panel can be fixedly connected between adjacent interior decorative panels.

[0044] Furthermore, a connecting pipe is connected to the side of the pipe located outside the wall.

[0045] The diameter of the connecting pipe is smaller than the diameter of the pipe body;

[0046] The connecting pipe extends through the insulation layer of the wall;

[0047] An anchoring sleeve is provided at the outer end of the pipe body located in the wall, and the anchoring sleeve can be anchored to the outer wall of the wall.

[0048] The negative pressure pipe assembly includes:

[0049] Multiple guide tubes are connected to the connecting tube;

[0050] A main guide pipe, one end of which is connected to a plurality of the guide pipes, and the other end of which is connected to the inlet of a negative pressure fan;

[0051] The main guide pipe is equipped with multiple regulating valves.

[0052] A serpentine coil can be connected between adjacent guide tubes;

[0053] The negative pressure control range is 1-4 kPa.

[0054] In addition, the construction method for the decorative structure of the wastewater treatment plant described above includes:

[0055] Step 1: Precast and install the pipe body in the precast hole. A filler can be set between the precast hole and the pipe body as a filler layer. Connect the connector to the pipe body on one side of the inner wall of the wall. Connect the L-shaped fitting to the wall with anchor screws.

[0056] Connect the connecting plate to the comb tooth cavity, ensuring the vertical orientation of the positioning extension. The comb tooth arrangement plate can be connected first.

[0057] Step 2: Prefabricate the connecting piles in advance, and mark the positions of the connecting piles on both sides of the interior decorative panel;

[0058] Next, align the recessed part of the interior trim panel with the arc-shaped protrusion and beveled part of the positioning extension, and fix it with a locking pin.

[0059] The remaining empty spaces between the interior trim panels are covered with closed trim panels, which can be fixed with a rivet gun;

[0060] Step 3: Control the negative pressure gas volume by operating the regulating valve.

[0061] The present invention has the following beneficial effects:

[0062] Firstly, by using interior decorative panels, a construction method is provided for interior surface engineering of sewage treatment plants, which has little impact on the walls of the plant and the resulting cavity will not generate large temperature differences due to heat conduction of materials and structure, making it suitable for use in sewage treatment plants.

[0063] Secondly, the comb-shaped components become nodes for guiding air in the factory under negative pressure, providing micro-negative pressure and guiding the air in the factory in real time. Combined with fresh air and axial flow fans, this can make the air in the factory clean and safe.

[0064] Thirdly, various solid particles, corrosive particles, and water vapor residues can all be affected by the negative pressure. They can be processed and cleaned in a timely manner by passing through the comb teeth or hanging on the comb teeth. In addition, the negative pressure pipe assembly can reduce the temperature difference between the inner and outer walls of the wall, reduce the condensation of various pollutants, and protect the wall. Attached Figure Description

[0065] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0066] Figure 1 This is a schematic diagram of the structure of the present invention;

[0067] Figure 2 This is a partially enlarged schematic diagram of position A in Embodiment 1 of the present invention;

[0068] Figure 3 This is another embodiment of a partially enlarged schematic diagram of position A of the present invention;

[0069] Figure 4 This is a partially enlarged schematic diagram of position B in the present invention;

[0070] Figure 5 This is a schematic diagram of the negative pressure pipe assembly of the present invention;

[0071] Figure 6 This is a schematic diagram showing the connection between the closed decorative surface and the inner decorative panel of the present invention.

[0072] The reference numerals in the figure are:

[0073] Precast wall components 10, pipe 101, wall 1, connecting components 20, decorative panel connecting components 30, and comb-tooth components 301;

[0074] Cavity 401, insulation layer 2, inner decorative panel 40, negative pressure pipe assembly 50;

[0075] Pre-drilled hole 11, connector 21, connector frame 22, extension end 221, L-shaped fitting part 222, perforated positioning part 223;

[0076] Anchor screw 224, tubular inner cavity 210, connecting plate 220;

[0077] Decorative connector 31, locking bolt 32, comb tooth cavity 311, mating connecting screw hole 312;

[0078] Matching connecting ring 313, matching hole 314, and internal hexagon lock screw 315;

[0079] Comb tooth arrangement plate 320, through hole 321, comb tooth 322;

[0080] Positioning extension 330, arc-shaped protrusion 331, beveled surface 332;

[0081] Connection position band 410, mating recess 420, connecting post 431, locking nail 432, and closed decorative panel 440.

[0082] Connecting pipe 51, anchoring sleeve 501, guide pipe 52;

[0083] 53. Main guide pipe, 56. Negative pressure fan, 54. Regulating valve, 55. Snake coil. Detailed Implementation

[0084] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention. It should be noted that, for ease of description, in this application, "left side" is referred to as "first end", "right side" as "second end", "upper side" as "first end", and "lower side" as "second end" in the current view. The purpose of such description is to clearly express the technical solution and should not be construed as an improper limitation of the technical solution of this application.

[0085] This invention aims to address the technical problem in the prior art of lacking a decorative layer to homogenize the indoor wall temperature of a wastewater treatment plant, effectively divert corrosive gases, improve air circulation within the plant, and ensure the thermal insulation effect of the external walls. It provides a decorative structure and construction method for a wastewater treatment plant.

[0086] This invention proposes a decorative structure for wastewater treatment plants, aiming to provide a novel decorative structure suitable for use in industrial plants of wastewater treatment facilities, addressing the following practical needs, specifically including:

[0087] (1) Provide the basic purpose of the interior decoration structure of the industrial plant of the sewage treatment plant, and construct the modern industrial plant;

[0088] (2) Provide a stable connection with the walls of the industrial plant, which is convenient for construction and ensures corrosion and erosion resistance. In conjunction with a fresh air fan or axial flow fan, provide a wall surface with a slight negative pressure to effectively guide and ventilate the air in the plant and ensure that the air environment in the plant is conducive to personnel operation.

[0089] (3) Effectively drain water vapor in the factory building to prevent water vapor from forming corrosive gases with potential pollutants in the factory building and eroding the walls of the industrial factory building, thereby increasing the service life of the industrial factory building.

[0090] Based on the above design objectives and specifications, this solution adopts the following design; please refer to the appendix. Figure 1 As shown, existing industrial buildings in wastewater treatment plants are mainly used for unit equipment, pump sets, and other complete sets of treatment equipment. These buildings are essentially high-ceilinged spaces with basic configurations including windows and ventilation facilities. The walls are generally treated with ordinary anti-corrosion coatings from the bottom to a height of 2 meters. The interior of the building is also equipped with heating pipes and drainage facilities. The finishing is mainly for modern buildings. In addition to functional requirements, the interior is designed to facilitate personnel operations, equipment racks, and management by including text-readable areas. This repeated use of walls leads to clutter and management chaos within the building. Furthermore, the building itself is susceptible to corrosive damage from acidic and alkaline coatings from wastewater treatment plants or from the corrosive effects of moisture. The actual decorative structure adds additional management and technical handling burdens.

[0091] This solution addresses the aforementioned issues in the following ways, for example, as shown in the appendix. Figure 1 In the process, a prefabricated wall component 10 is used. The prefabricated wall component 10 has a pipe body 101, which connects the interior and exterior of the wall 1 and serves as an outward air supply channel within the factory building.

[0092] A connecting member 20 is adopted, which is connected to the end of the pipe body 101 located inside the wall 1, and the connecting member 20 can form a fixed connection with the inner wall of the wall 1 to increase the stability of the pipe body 101. The connecting member 20 will also become the core support member of the decorative panel connecting member 30 and the inner decorative panel 40.

[0093] Specifically, a decorative panel connecting member 30 is adopted. The decorative panel connecting member 30 can be connected to the connecting member 20 and communicate with the pipe body 101. The decorative panel connecting member 30 has a comb tooth 301 arranged in the direction of communication with the pipe body 101. The comb tooth 301 here will serve as an inlet for guiding the air inside the factory to the air outside the factory. The comb tooth 301 here plays the role of intercepting water vapor condensation and intercepting and hooking solid dust.

[0094] The decorative panel connecting member 30 also has a mating end, which is used to mate, position and connect the inner decorative panel 40, and a cavity 401 is formed between the inner decorative panel 40 and the inner wall of the wall 1.

[0095] The portion of the pipe body 101 located outside the wall 1 passes through the insulation layer 2 and connects to a negative pressure pipe assembly 50. The negative pressure pipe assembly 50 guides the air inside the factory to the exhaust end of the negative pressure pipe assembly 50 through negative pressure. It can also improve the actual temperature difference between the inner and outer wall surfaces of the wall 1, making it difficult for corrosive gases or water vapor to condense, thereby reducing the risk of the actual service life of the wall 1.

[0096] The above technical solution can achieve the following technical objectives and effects, specifically:

[0097] (1) By adopting the interior decorative panel 40, a construction method for interior surface engineering of sewage treatment plant is provided, and the impact on the wall 1 of the plant is small. The cavity 401 formed will not generate a large temperature difference due to heat conduction of materials and structure, and is suitable for use in sewage treatment plant.

[0098] (2) The comb tooth 301 becomes a node for guiding the air in the factory with negative pressure. It can provide a slight negative pressure and guide the air in the factory in real time. With the help of fresh air and axial flow fans, the air in the factory can be clean and safe.

[0099] (3) All kinds of solid particles, corrosive particles and water vapor residues can be affected by the negative pressure. They can be treated and cleaned in time through the comb tooth 301 or hung on the comb tooth 301. The negative pressure pipe assembly 50 can reduce the temperature difference between the inner and outer walls of the wall 1, reduce the condensation of various pollutants, and protect the wall 1.

[0100] In one specific embodiment, please refer to Figure 2 As shown, prefabricated holes 11 are opened at equal intervals in the horizontal and vertical directions of the wall 1. A pipe 101 is inserted into the prefabricated hole 11. The length of the pipe 101 is greater than the thickness of the wall 1. The pipe 101 is made of PVC pipe or CPVC pipe. The part of the pipe 101 located in the prefabricated hole 11 is filled by a filling layer.

[0101] In one specific embodiment, please refer to Figure 2 As shown, the connecting member 20 includes: a connecting body 21 having a plastic liner with internal threads formed on the plastic liner; an external thread provided at the end of the pipe body 101 inside the wall 1; and the connecting body 21 being screwed onto the pipe body 101; the connecting body 21 is radially connected to a plurality of connecting brackets 22, which form a cross claw structure.

[0102] Each set of connecting brackets 22 includes: an extension end 221, which maintains a preset distance from the inner wall of the wall 1; an L-shaped fitting 222 connected to the extension end 221, the L-shaped fitting 222 having a fitting end that is tightly attached to the inner wall of the wall 1; and a perforated positioning member 223, which is fixedly mounted on the fitting end, and is fixedly connected to the inner wall of the wall 1 by means of an anchoring screw 224 passing through the perforated positioning member 223.

[0103] In one specific embodiment, please refer to Figure 2 As shown, the connector 21 has a tubular inner cavity 210; the tubular inner cavity 210 is connected to the tube body 101;

[0104] The side of the connector 21 away from the wall surface of the wall 1 is configured to form a connecting plate 220;

[0105] The decorative panel connecting component 30 includes a decorative connector 31, which is fixedly connected to the connecting plate 220 by inserting a locking bolt 32.

[0106] In one specific embodiment, please refer to Figure 2 As shown, the comb tooth component 301 includes: a comb tooth cavity 311, a decorative connector 31 having a mating connection screw hole 312; a mating connection ring 313 formed on the outer periphery of the comb tooth cavity 311, the mating connection ring 313 having a mating hole 314; and an internal hexagon lock screw 315, which can pass through the mating hole 314 and be screwed into the mating connection screw hole 312.

[0107] The above connection method ensures a safe sequence during the installation of the connector 21, connector 220, and comb cavity 311, with tight connections, low installation strength, and high installation efficiency.

[0108] In one specific embodiment, please refer to Figure 2 As shown, the end of the decorative connector 31 away from the wall 1 is provided with a comb-tooth arrangement plate 320;

[0109] The comb tooth arrangement plate 320 has multiple through holes 321 and is connected to comb teeth 322 arranged in a row; adjacent comb teeth 322 are arranged at equal intervals; through holes 321 are arranged between the comb teeth 322 arranged in a row; through holes 321 connect to comb tooth cavity 311, and through holes 321 serve as the main flow component for air flow.

[0110] In one specific embodiment, please refer to Figure 1-4 As shown, after the comb cavity 311 is fixedly connected to the connecting plate 220, it has an installation posture. In the installation posture, the two sets of positioning extensions 330 on the radial sides of the comb cavity 311 are located on the same positioning line, and the positioning line is perpendicular to the horizontal plane.

[0111] As attached Figure 2 ,3 In the middle, the positioning extension 330 has an arc-shaped protrusion 331, and along the inclined surface 332 formed by the arc-shaped protrusion 331, the arc-shaped protrusion 331 and the inclined surface 332 form a mating protrusion; multiple mating recesses 420 are constructed on the upper and lower connection position strips 410 on the side of the inner decorative panel 40 facing the wall 1; the mating recesses 420 are bonded to the mating protrusions for the installation positioning of the mating, positioning and connecting inner decorative panel 40, and the working surface of the inner decorative panel 40 is pre-coated with an anti-corrosion coating.

[0112] The above configuration can be understood as the configuration of the node positions. To ensure a more stable installation and fixation of the interior trim panel 40, as shown in the attached... Figure 1 , 3 As shown, multiple connecting posts 431 are prefabricated on the inner side of wall 1, and the connecting posts 431 are arranged between two sets of pipes 101 arranged in a row in wall 1; the inner decorative panel 40 is fixedly connected to the connecting posts 431 by locking nails 432. A closed decorative panel 440 can be fixedly connected between adjacent inner decorative panels 40, as shown in the attached figure. Figure 6 As shown in the image.

[0113] In one specific embodiment, please refer to Figure 5 As shown, a connecting pipe 51 is connected to the side of the pipe body 101 outside the wall 1; the diameter of the connecting pipe 51 is smaller than the diameter of the pipe body 101; the connecting pipe 51 passes through the insulation layer 2 of the wall 1; an anchoring sleeve 501 is provided at the outer end of the pipe body 101 outside the wall 1, and the anchoring sleeve 501 can be anchored to the outer wall of the wall 1.

[0114] The negative pressure pipe assembly 50 includes: a plurality of guide pipes 52 connected to a connecting pipe 51; a main guide pipe 53, one end of which is connected to the plurality of guide pipes 52 and the other end of which is connected to the inlet of a negative pressure fan 56; the main guide pipe 53 is provided with a plurality of regulating valves 54 and serpentine coils 55 can be connected between adjacent guide pipes 52; the negative pressure control range is 1-4 kPa.

[0115] The micro negative pressure mentioned in this application refers to the negative pressure control range of 1-4 kPa. Here, 1 kPa is the working pressure of a common vacuum cleaner. In actual configuration, it is recommended to proportionalize the increase in negative pressure control based on the width of the wall 1. For example, for every 5 meters increase in width, the actual negative pressure control range can be increased by 0.5-1 kPa.

[0116] Construction methods for decorative structures in wastewater treatment plants include:

[0117] Step 1: Prefabricate and install the pipe body 101 in the prefabricated hole 11. A filler can be set between the prefabricated hole 11 and the pipe body 101 as a filler layer. Connect the connector 21 to the pipe body 101 on one side of the inner wall of the wall 1. Connect the L-shaped fitting 222 to the wall 1 through the anchoring screw 224.

[0118] Connect the connecting plate 220 to the comb cavity 311 to ensure the vertical orientation of the positioning extension 330. The comb arrangement plate 320 can be connected first.

[0119] Step 2: Prefabricate the connecting pile 431 in advance, and mark the positions of the connecting pile 431 on both sides of the inner decorative panel 40;

[0120] Next, align the mating recess 420 of the inner decorative panel 40 with the arc-shaped protrusion 331 and the beveled surface 332 of the positioning extension 330, and fix it with the locking pin 432;

[0121] The remaining empty spaces between the interior decorative panels 40 are covered with closed decorative panels 440, which can be fixed with a rivet gun.

[0122] Step 3: Control the negative pressure gas volume by operating regulating valve 54.

[0123] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A decorative structure for a sewage treatment plant, characterized in that, include: The precast wall component (10) has a tube (101) that connects the interior and exterior of the wall (1); A connecting member (20) is connected to the end of the pipe (101) located inside the wall (1), and the connecting member (20) is able to form a fixed connection with the inner wall of the wall (1); Decorative panel connecting member (30) is capable of connecting to the connecting member (20) and communicating with the tube body (101). The decorative panel connecting member (30) has comb teeth (301) arranged in the communicating direction with the tube body (101). The decorative panel connecting member (30) also has a mating end, which is used to fit, position and connect the inner decorative panel (40), and a cavity (401) is formed between the inner decorative panel (40) and the inner wall of the wall (1). The portion of the pipe body (101) located outside the wall (1) passes through the insulation layer (2) and connects to a negative pressure pipe assembly (50). The negative pressure pipe assembly (50) guides the air inside the factory to the exhaust end of the negative pressure pipe assembly (50) through negative pressure. After the comb cavity (311) and the connecting plate (220) are docked and fixedly connected, it has an installation posture. In the installation posture; The two sets of positioning extensions (330) on the radial sides of the comb cavity (311) are located on the same positioning line, and the positioning line is perpendicular to the horizontal plane; The positioning extension (330) has an arcuate protrusion (331) and a beveled portion (332) formed along the arcuate protrusion (331), the arcuate protrusion (331) and the beveled portion (332) forming a mating protrusion; Multiple mating recesses (420) are constructed on the upper and lower connecting strips (410) on the side of the interior decorative panel (40) facing the wall (1). The mating recess (420) and the mating protrusion are bonded together for the installation and positioning of the inner decorative panel (40), and the working surface of the inner decorative panel (40) is pre-coated with an anti-corrosion coating. The pipe body (101) is connected to a connecting pipe (51) on the side outside the wall (1); The diameter of the connecting pipe (51) is smaller than the diameter of the pipe body (101); The connecting pipe (51) extends through the insulation layer (2) of the wall (1); An anchor sleeve (501) is provided at the outer end of the pipe body (1) and the anchor sleeve (501) can be anchored to the outer wall of the wall body (1). The negative pressure pipe assembly (50) includes: Multiple guide tubes (52) are connected to the connecting tube (51); A main guide pipe (53) is connected at one end to a plurality of the guide pipes (52) and at the other end to the inlet of a negative pressure fan (56); The main guide pipe (53) is equipped with multiple regulating valves (54). A serpentine coil (55) can be connected between adjacent guide tubes (52); The negative pressure control range is 1-4 kPa.

2. The decorative structure for a wastewater treatment plant as described in claim 1, characterized in that, The wall (1) has prefabricated holes (11) at equal intervals in the horizontal and vertical directions. The pipe (101) is inserted into the prefabricated holes (11). The length of the pipe (101) is greater than the thickness of the wall (1). The pipe (101) is made of PVC pipe or CPVC pipe. The portion of the tube body (101) located within the pre-made hole (11) is filled with a filling layer.

3. The decorative structure for a wastewater treatment plant as described in claim 2, characterized in that, The connecting member (20) includes: The connector (21) has a plastic liner with internal threads, and the tube (101) has an external thread at its end inside the wall (1). The connector (21) is screwed onto the tube (101). The connector (21) is radially connected to a plurality of connectors (22), and the plurality of connectors (22) form a cross claw structure; Each set of the connecting frames (22) includes: The extension end (221) maintains a preset distance from the inner wall of the wall (1); The extension end (221) is connected to an L-shaped fitting (222), the L-shaped fitting (222) having a fitting end that is in close contact with the inner wall of the wall (1); A perforated positioning element (223) is fixedly installed on the mating end, and a fixed connection is formed with the inner wall of the wall (1) by an anchoring screw (224) passing through the perforated positioning element (223).

4. The decorative structure for a wastewater treatment plant as described in claim 3, characterized in that, The connector (21) has a tubular inner cavity (210); The tubular inner cavity (210) is connected to the tube body (101). The connecting body (21) is constructed to form the connecting plate (220) on the side of the wall away from the wall (1). The decorative panel connecting member (30) includes: The decorative connector (31) is fixedly connected to the connecting plate (220) by inserting a locking bolt (32).

5. The decorative structure for a wastewater treatment plant as described in claim 4, characterized in that, The comb tooth component (301) includes: The comb cavity (311) and the decorative connector (31) are provided with a mating connection screw hole (312). The outer periphery of the comb cavity (311) forms a mating connecting ring (313), and the mating connecting ring (313) has a mating hole (314). A hexagonal locking screw (315) is inserted into the mating hole (314) and screwed into the mating connection screw hole (312).

6. The decorative structure for a wastewater treatment plant as described in claim 5, characterized in that, The decorative connector (31) is provided with a comb-tooth arrangement plate (320) at the end away from the wall (1). The comb tooth arrangement plate (320) has multiple through holes (321) and is connected to comb teeth (322) arranged in a row. Adjacent comb teeth (322) are arranged at equal intervals; The through holes (321) are arranged between the comb teeth (322) arranged in rows; The through hole (321) connects to the comb cavity (311).

7. The decorative structure for a wastewater treatment plant as described in claim 6, characterized in that, Multiple connecting piles (431) are prefabricated on the inner wall surface of the wall (1), and the connecting piles (431) are arranged between two sets of pipes (101) arranged in a row in the wall (1). The interior decorative panel (40) is fixedly connected to the connecting post (431) by means of locking nails (432); An enclosed decorative panel (440) can be fixedly connected between adjacent interior decorative panels (40).

8. The construction method for the decorative structure of a sewage treatment plant as described in claim 7, characterized in that, include: Step 1: Prefabricate and install the pipe body (101) in the prefabricated hole (11). Filler material can be set between the prefabricated hole (11) and the pipe body (101) as a filling layer. Connect the connector (21) and the pipe body (101) on one side of the inner wall of the wall (1). Connect the L-shaped fitting (222) to the wall (1) through the anchor screw (224). Connect the connecting plate (220) to the comb cavity (311) to ensure the vertical orientation of the positioning extension (330). The comb arrangement plate (320) can be connected first. Step 2: Prefabricate the connecting pile (431) in advance, and mark the positions of the connecting pile (431) on both sides of the inner decorative panel (40); Align the mating recess (420) of the interior trim panel (40) with the arc protrusion (331) and bevel (332) of the positioning extension (330) and fix it with the locking pin (432); The remaining empty spaces between the interior trim panels (40) are covered with closed trim panels (440), which can be fixed with a rivet gun; Step 3: Control the negative pressure gas volume by operating the regulating valve (54).

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