Integrated sewage treatment centralized control system self-control cabinet

Abstract

The utility model discloses a kind of integrated sewage treatment centralized control system's automatic control cabinet, it is related to the technical field of automatic control cabinet moisture-proof, including cabinet, symmetrically installed drying box on cabinet, the top of drying box is clamped with top cover, further include: drying component is installed on cabinet, drying component is used to prevent moisture to the electrical components inside cabinet;And, replacement component is installed on cabinet, replacement component is used to replace drying agent inside drying box, by setting suction nozzle above drying box, and then it is convenient to dry the humid gas after drying box, and then it is convenient to keep cabinet dry inside, it is convenient to keep the service life of electrical components inside cabinet;The utility model is equipped with replacement component, and then it is convenient for user to replace drying box regularly quickly, simultaneously, by the linkage action of structure, when drying box is unlocked, it can vibrate drying box synchronously, prevent drying agent particle from sticking drying box, can conveniently replace new drying agent.

Description

Technical Field

[0001] This utility model relates to the field of moisture-proof technology for automatic control cabinets, specifically an automatic control cabinet that integrates a centralized sewage treatment control system. Background Technology

[0002] The control cabinet of a centralized wastewater treatment control system is the "central nervous system" of automated wastewater operation, integrating monitoring and control functions to ensure efficient and stable processes. Common types include pump control cabinets, frequency converter control cabinets, and integrated PLC control cabinets, which are widely used in municipal wastewater treatment plants and industrial wastewater treatment plants, and are key equipment for achieving wastewater discharge standards and reducing costs.

[0003] The dampness inside the control cabinet mainly stems from the water vapor emitted by sewage and sludge: sewage and sludge at the sewage treatment site continuously evaporate water vapor, keeping the ambient humidity high; if the cabinet is not properly sealed, such as aging door seals or unsealed wiring holes, this water vapor will seep into the cabinet; at the same time, water mist generated by on-site spraying and rinsing will also enter the cabinet with the air, causing the humidity inside the cabinet to rise. Since the cabinet mainly contains precision components such as PLC circuit boards and frequency converter modules, dampness is extremely harmful: at best it will cause terminal oxidation and poor contact, and data transmission failure; at worst it will cause short circuits and tripping, or even burn out the core control unit, leading to the shutdown of the sewage treatment system and excessive sewage discharge.

[0004] Current moisture control methods mostly rely on passive moisture absorption by desiccants inside the cabinet, but there are obvious shortcomings: in high humidity environments, desiccants need to be replaced every 15 to 30 days, which is a high frequency; and the desiccant boxes are mostly fixed to the cabinet with bolts, so when replacing them, the power needs to be turned off and the bolts need to be removed with tools, which takes 5 to 8 minutes per unit. When maintaining a batch, the workload is large and the efficiency is low, and the downtime will also affect the continuous operation of the system. Utility Model Content

[0005] The purpose of this invention is to provide an automatic control cabinet for an integrated centralized control system for sewage treatment, so as to solve the problems mentioned in the background art.

[0006] By adopting the above technical solution, the drying components and replacement components work together to maintain the humidity inside the cabinet at a suitable level, while the desiccant can be quickly replaced by replacing the components.

[0007] To achieve the above objectives, this utility model provides the following technical solution: An automatic control cabinet for an integrated centralized sewage treatment control system includes a cabinet body, on which drying boxes are symmetrically installed, and a top cover is snapped onto the top of each drying box. The cabinet body also includes: a drying component installed on the cabinet body for moisture protection of internal electrical components; and a replacement component installed on the cabinet body for replacing the desiccant inside the drying boxes.

[0008] Preferably, the drying component includes a fan mounted on the cabinet, the input end of which is connected to a suction nozzle via a pipe, the suction nozzle being located above the top cover.

[0009] Preferably, the output end of the fan is symmetrically equipped with air ducts via a three-way pipe, and exhaust nozzles are installed on the outside of both air ducts.

[0010] Preferably, the replacement component includes a limiting block installed on the outside of the cabinet, the limiting block having a limiting groove, the limiting groove being L-shaped.

[0011] Preferably, a rotating rod is rotatably connected inside the drying box, one end of which passes through and extends to the outside of the drying box and is fixedly connected to a handle. A limiting rod is fixedly connected to the outside of the rotating rod and the inner side near the handle, and the limiting rod corresponds to a limiting groove.

[0012] Preferably, compression springs are symmetrically installed on the outside of the rotating rod, and a vibrating ball is fixedly connected to the outside of the compression spring. When the rotating rod rotates, it can drive the vibrating ball to strike the outer inner wall of the drying box.

[0013] Preferably, a fixing block is symmetrically installed on the inner side of the drying box, a slide rod is slidably connected above the fixing block, a return spring is fixedly connected to one end of the slide rod, the return spring is fixedly connected to the inner wall of the drying box, and a circular piece is fixedly connected to the end of the slide rod away from the return spring, the position of the circular piece corresponding to the cam.

[0014] Preferably, a guide rod is fixedly connected to the outside of the disc. When the rotating rod rotates, the guide rod can be driven by the cam to strike the inner wall of the drying box, thereby facilitating the shaking of the desiccant inside the drying box.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the device, This utility model is equipped with a drying component. By placing the fan nozzle above the drying box, it is easier to dry the humid gas through the drying box before it is discharged, thereby keeping the inside of the cabinet dry and extending the service life of the electrical components inside the cabinet.

[0016] This utility model is equipped with a replacement part, which makes it convenient for users to replace the desiccant box regularly and quickly. At the same time, through the linkage of the structure, when the desiccant box is unlocked, the desiccant box can be vibrated by rotating the handle simultaneously, which prevents the desiccant particles from sticking to the desiccant box and makes it easy to replace with new desiccant. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the cabinet of this utility model; Figure 3 This is a schematic diagram of the internal structure of the drying box of this utility model; Figure 4 This is a top view schematic diagram of the drying box structure of this utility model; Figure 5 This is a partial structural diagram of the replaceable component of this utility model; Figure 6 for Figure 2 A magnified schematic diagram of the corresponding structure is shown in section A. In the diagram: 1. Cabinet; 2. Fan; 3. Drying component; 4. Replacement component; 5. Drying box; 6. Top cover; 7. Vibrating ball; 8. Limiting block; 9. Limiting groove; 10. Rotating rod; 11. Compression spring; 12. Limiting rod; 13. Handle; 14. Cam; 15. Fixing block; 16. Slide rod; 17. Return spring; 18. Circular plate; 19. Guide rod; 20. Suction nozzle; 21. Air duct; 22. Exhaust nozzle. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-6This utility model provides a technical solution: an automatic control cabinet for an integrated centralized sewage treatment control system, comprising a cabinet body 1, the surface of which is treated with double-layer electrostatic powder coating, with a coating thickness ≥60μm, and a salt spray test duration of over 500 hours, effectively resisting the corrosive gas erosion in the sewage environment and preventing the cabinet body 1 from rusting and causing sealing failure. The dimensions of the cabinet body 1 are designed according to the layout of electrical components, and the cabinet door uses double-layer hollow tempered glass, which facilitates observation of the internal status and reduces condensation caused by temperature differences. A drying box 5 is symmetrically installed on the cabinet body 1, made of food-grade ABS engineering plastic, which has impact resistance, anti-aging properties, and a smooth surface that prevents desiccant from sticking. The volume of the drying box 5 is designed to be compatible with the dimensions of the cabinet body 1, ensuring that the moisture absorption range covers the entire area of ​​the cabinet body 1. The inside of the drying box 5 is used to store silica gel desiccant, using blue color-changing silica gel desiccant, with a moisture absorption rate of 25% to 30% of its own weight, and changes from blue to pink after absorbing moisture, making it easy to visually determine the failure status. The diameter of the through hole on the inner side of the drying box 5 is designed to be 3mm, which prevents desiccant leakage and ensures air circulation within the cabinet body 1. The contact area with the desiccant includes a sealing gasket at the connection between the cabinet 1 and the drying box 5, made of EPDM rubber, which can tightly fill the gap between the cabinet 1 and the drying box 5 to prevent external humid air from directly penetrating into the interior of the cabinet 1. The top of the drying box 5 is snapped with a top cover 6, which is connected to the drying box 5 by a snap-fit. The surface of the top cover 6 also has a 3mm through hole. The system also includes: a drying component 3 installed on the cabinet 1, which is used to prevent moisture from entering the electrical components inside the cabinet 1; and a replacement component 4 installed on the cabinet 1, which is used to replace the desiccant inside the drying box 5.

[0020] Meanwhile, the drying component 3 includes a fan 2 mounted on the cabinet 1. The input end of the fan 2 is connected to a suction nozzle 20 via a pipe. The suction nozzle 20 is located above the top cover 6, with a 5mm gap between the bottom of the suction nozzle 20 and the top cover 6. A 100-mesh nylon dustproof net is installed inside the suction nozzle 20 to prevent desiccant dust from being sucked into the fan 2, thus extending the life of the fan 2. The suction nozzle 20, in conjunction with the drying box 5, can draw in humid, sinking gas, thereby reducing the humidity inside the cabinet 1.

[0021] Furthermore, the output end of the fan 2 is symmetrically equipped with air ducts 21 through a three-way pipe, and exhaust nozzles 22 are installed on the outside of both air ducts 21. The exhaust nozzles 22 can accelerate the air circulation inside the cabinet 1.

[0022] By placing the suction nozzle 20 of the fan 2 on the top cover 6 above the drying box 5, it is easier to dry the humid gas through the desiccant inside the drying box 5 before it is discharged, thereby keeping the inside of the cabinet 1 dry and extending the service life of the electrical components inside the cabinet 1.

[0023] Please see Figure 1-6This utility model provides a technical solution: an automatic control cabinet for an integrated centralized control system for sewage treatment. The replacement component 4 includes a limiting block 8 installed on the outside of the cabinet 1. The limiting block 8 has a limiting groove 9, which is L-shaped. The limiting block 8 is made of stainless steel 304 and is fixed to the outer wall of the cabinet 1 by screws. The inner wall of the limiting groove 9 is polished to reduce the sliding resistance of the limiting rod 12.

[0024] The drying box 5 is internally connected to a rotating rod 10, which is a 304 stainless steel round rod with high strength and is not easily deformed. One end of the rod passes through the side wall of the drying box 5, and an O-ring rubber seal is installed at the connection with the wall of the drying box 5 to prevent air leakage. One end of the rotating rod 10 passes through and extends to the outside of the drying box 5 and is fixedly connected to a handle 13. The surface is provided with anti-slip texture for easy gripping and force application. A limit rod 12 is fixedly connected to the outside of the rotating rod 10 and the inside of the handle 13. The limit rod 12 is also L-shaped and is vertically welded to the outside of the rotating rod 10. It is perfectly matched with the size of the limit groove 9 to ensure a tight fit when locked without any loosening.

[0025] When it is necessary to replace the desiccant inside the desiccant box 5, the operation process is simple and efficient. The operator simply grasps and rotates the handle 13, which drives the connected rotating rod 10 to rotate synchronously. The limiting rod 12 outside the rotating rod 10 rotates accordingly, gradually disengaging from the corresponding limiting groove 9 on the cabinet 1. Once the limiting rod 12 is completely disengaged from the limiting groove 9, the desiccant box 5 can be gently pulled outwards to easily remove it from the cabinet 1, preparing it for subsequent desiccant replacement.

[0026] A compression spring 11 is symmetrically installed on the outside of the rotating rod 10. The compression spring 11 not only serves as a buffer, but also has a vibrating ball 7 fixedly connected to its outside. When the rotating rod 10 is rotated by the handle 13, it indirectly drives the vibrating ball 7 to move, causing the vibrating ball 7 to continuously impact the outer inner wall of the drying box 5. The vibration generated by the impact initially loosens any desiccant particles that may be stuck inside the drying box 5.

[0027] The inner side of the drying box 5 is also carefully designed, with symmetrically installed fixing blocks 15. A sliding rod 16 is slidably connected above the fixing blocks 15, allowing the sliding rod 16 to slide stably under the constraint of the fixing blocks 15. A return spring 17 is fixedly connected to one end of the sliding rod 16, and the other end of the return spring 17 is fixedly connected to the inner wall of the drying box 5. The return spring 17 provides assistance for the return of the sliding rod 16. A circular piece 18 is fixedly connected to the end of the sliding rod 16 away from the return spring 17, and the position of the circular piece 18 corresponds to the cam 14 on the rotating rod 10.

[0028] A guide rod 19 is fixedly connected to the outside of the disc 18. The guide rod 19 is made of rubber and is vertically bonded to the outside of the disc 18. The end is designed to be hemispherical. This material and shape effectively prevent damage to the inner wall of the drying box 5 upon impact. When the rotating rod 10 rotates, the cam 14 rotates accordingly. The rotating cam 14 pushes the disc 18, which in turn drives the guide rod 19 to move, causing the guide rod 19 to impact the inner wall of the drying box 5. This further enhances the vibration effect and is more conducive to shaking the desiccant inside the drying box 5, ensuring that the desiccant particles are fully loosened for easy subsequent cleaning and replacement.

[0029] The replaceable component 4 in the entire device greatly simplifies the desiccant replacement process, allowing users to quickly and regularly replace the desiccant inside the desiccant box 5. Simultaneously, through the interconnected mechanisms, unlocking the desiccant box 5 only requires rotating the handle 13, which simultaneously vibrates the inner wall of the box, effectively preventing desiccant particles from adhering to the inner wall and ensuring smoother filling with new desiccant. Furthermore, the quick unlocking and wall-cleaning design of the replaceable component 4 significantly reduces equipment maintenance time; the silica gel desiccant used is inexpensive, readily available, and does not cause secondary pollution. Compared to traditional moisture-proof solutions, the overall maintenance cost is significantly reduced, demonstrating substantial advantages in practical applications.

[0030] The working principle of this device is as follows: First, since humid air is denser than dry air, it naturally sinks to the lower part of cabinet 1. The drying box 5 is installed in the lower part of cabinet 1, and the suction nozzle 20 is directly opposite the through hole of the top cover 6 of the drying box 5. After the fan 2 is started, it will actively draw the humid air above the top cover 6 through the suction nozzle 20, forcing the humid air into the interior of the drying box 5. The humid air comes into full contact with the blue silica gel desiccant inside the drying box 5. The silica gel absorbs the moisture in the air through physical adsorption, turning the air into dry air. The dried air is drawn in by the fan 2, diverted to the two side air ducts 21 through the three-way pipe, and finally discharged from the exhaust nozzle 22, spreading to the upper and middle parts of cabinet 1. The discharged dry air will push the remaining humid air in cabinet 1 to flow towards the drying box 5, forming a closed loop of "sinking moisture → drying box 5 adsorption → dry air circulation", continuously reducing the humidity inside cabinet 1. Secondly, when it is necessary to replace the desiccant inside the drying box 5, rotate the handle 13. The handle 13 drives the rotating rod 10 to rotate, which in turn drives the limiting rod 12 to disengage from the limiting groove 9. At the same time, pull the drying box 5 outward to detach the drying box 5 from the cabinet 1. When unlocking, the rotating rod 10 rotates, which drives the outer compression spring 11 to perform centrifugal motion. The spring is stretched by centrifugal force, and the vibrating ball 7 at its end will repeatedly hit the outer inner wall of the drying box 5, which can shake off the desiccant particles attached to the outer wall of the drying box 5. Finally, as the rotating rod 10 rotates, the inner cam 14 rotates synchronously. The protruding end of the cam 14 gradually squeezes the disc 18, pushing the slide rod 16 to move along the guide hole of the fixed block 15, while compressing the return spring 17. After the protruding end of the cam 14 passes the disc 18, the return spring 17 quickly rebounds, causing the slide rod 16, the disc 18 and the guide rod 19 to quickly impact the inner wall of the drying box 5, which can effectively shake off the desiccant adhering to the inner wall of the drying box 5.

[0031] The circuits and controls involved in this utility model are all existing technologies and will not be described in detail here.

[0032] It is understood that this utility model is described through some embodiments, and as those skilled in the art will know, various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, modifications to these features and embodiments can be made to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. An automatic control cabinet for an integrated centralized control system for sewage treatment, comprising a cabinet (1), wherein drying boxes (5) are symmetrically installed on the cabinet (1), and a top cover (6) is snapped onto the top of the drying boxes (5). Its features are, Also includes: A drying component (3) is installed on the cabinet (1) to prevent moisture from entering the electrical components inside the cabinet (1); as well as, Replacement component (4) installed on cabinet (1) is used to replace the desiccant inside the drying box (5).

2. The automatic control cabinet of the integrated wastewater treatment centralized control system according to claim 1, characterized in that: The drying component (3) includes a fan (2) mounted on the cabinet (1), and the input end of the fan (2) is connected to a suction nozzle (20) via a pipe. The suction nozzle (20) is located above the top cover (6).

3. The automatic control cabinet of the integrated wastewater treatment centralized control system according to claim 2, characterized in that: The output end of the fan (2) is symmetrically equipped with air ducts (21) through a three-way pipe, and exhaust nozzles (22) are installed on the outside of both air ducts (21).

4. The automatic control cabinet of the integrated wastewater treatment centralized control system according to claim 3, characterized in that: The replacement component (4) includes a limiting block (8) installed outside the cabinet (1), and a limiting groove (9) is provided on the limiting block (8), which is L-shaped.

5. The automatic control cabinet of the integrated wastewater treatment centralized control system according to claim 4, characterized in that: The drying box (5) is rotatably connected to a rotating rod (10). One end of the rotating rod (10) extends through and out of the drying box (5) and is fixedly connected to a handle (13). A limiting rod (12) is fixedly connected to the outside of the rotating rod (10) and close to the inside of the handle (13). The limiting rod (12) corresponds to the limiting groove (9).

6. The automatic control cabinet of the integrated wastewater treatment centralized control system according to claim 5, characterized in that: A compression spring (11) is symmetrically installed on the outside of the rotating rod (10), and a vibrating ball (7) is fixedly connected to the outside of the compression spring (11). When the rotating rod (10) rotates, it can drive the vibrating ball (7) to hit the outer inner wall of the drying box (5).

7. The automatic control cabinet of the integrated wastewater treatment centralized control system according to claim 5, characterized in that: A fixing block (15) is symmetrically installed on the inner side of the drying box (5). A slide rod (16) is slidably connected above the fixing block (15). A return spring (17) is fixedly connected to one end of the slide rod (16). The return spring (17) is fixedly connected to the inner wall of the drying box (5). A disc (18) is fixedly connected to the end of the slide rod (16) away from the return spring (17). The position of the disc (18) corresponds to the cam (14).

8. The automatic control cabinet of the integrated wastewater treatment centralized control system according to claim 7, characterized in that: The disc (18) is fixedly connected to a guide rod (19). When the rotating rod (10) rotates, the guide rod (19) can be driven by the cam (14) to strike the inner wall of the drying box (5), thereby facilitating the shaking of the desiccant inside the drying box (5).

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