SV online sludge settling observation device

Abstract

The utility model relates to water treatment, concretely is SV online sludge subsidence observation device, including the box, installs the subsidence observation device in the box, the subsidence observation device includes water inlet pipe, water outlet pipe, overflow pipe and observation pipe, the observation pipe is transparent material and sets up vertically, and in the box relative to the two sides of observation pipe installs the camera and light source assembly just for observation pipe respectively, the utility model discloses the combination of structural innovation and automation control has realized the online, automatic, accurate observation of sludge subsidence ratio, has overcome the drawback of manual determination effectively, has provided reliable data support for the fine management and intelligent control of sewage treatment plant.

Description

Technical Field

[0001] This utility model relates to water sample sedimentation observation equipment, specifically an SV online sludge sedimentation observation device. Background Technology

[0002] In activated sludge wastewater treatment processes, sludge settling ratio (SV) is a crucial operating parameter, reflecting the settling performance and thickening effect of the sludge, and providing guidance for process adjustments. Traditionally, SV measurement relies primarily on manual operation: sampling, settling, observation, and recording of the settling volume. This method has the following drawbacks: 1. Poor timeliness: Manual measurement is time-consuming and cannot achieve real-time monitoring, making it difficult to reflect changes in sludge status in a timely manner.

[0003] 2. Human error: Readings rely on the operator's experience and judgment, which can easily introduce subjective errors and affect the accuracy of the data.

[0004] 3. Heavy workload: Frequent manual sampling and measurement are required, which increases the workload of operations staff.

[0005] 4. Low level of automation: It is difficult to integrate with modern automatic control systems, which limits the intelligent development of the sewage treatment process. Utility Model Content

[0006] The purpose of this invention is to provide an online sludge settling observation device (SV) to solve the problems of poor timeliness and accuracy, low degree of automation, and large workload of existing manual operations.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an online sludge settling observation device (SV), comprising a housing, in which a settling observation device is installed. The settling observation device includes an inlet pipe, an outlet pipe, an overflow pipe, and an observation pipe. The observation pipe is made of transparent material and is vertically arranged. A camera and a light source assembly are respectively installed on both sides of the observation pipe in the housing, facing the observation pipe. One end of the inlet pipe communicates with the upper part of the observation pipe to form an inlet, and the other end penetrates the side wall of the housing and is used to extend into the settling tank. One end of the overflow pipe communicates with the upper part of the observation pipe to form an overflow outlet, which is lower than the inlet. The other end of the overflow pipe extends downward and penetrates the side wall of the housing. One end of the outlet pipe is connected to the lower part of the observation pipe, and the other end penetrates the side wall of the housing. A first ball valve is installed between the outlet pipe and the observation pipe, and the volume of the observation pipe between the first ball valve and the lower edge of the overflow outlet is a preset volume.

[0008] This invention, by setting up an inlet pipe, an outlet pipe, an overflow pipe, and an observation pipe, and configuring a camera and a light distribution plate, can periodically inject sludge mixture into the observation pipe and perform real-time automated observation and recording through the camera. Through the combination of structural innovation and automated control, this invention achieves online, automatic, and accurate observation of sludge settling ratio, effectively overcoming the drawbacks of manual measurement and providing reliable data support for the refined management and intelligent control of sewage treatment plants. Attached Figure Description

[0009] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 A front view schematic diagram of the SV online sludge settling observation device provided in this embodiment of the present invention; Figure 2 for Figure 1 Rear view; Figure 3 This is a three-dimensional structural schematic diagram of the present invention; Figure 4 This is a schematic diagram of the pipeline structure in this utility model.

[0010] In the diagram, the components are: 1. Box body; 2. Inlet pipe; 3. Outlet pipe; 4. Overflow pipe; 5. Observation pipe; 6. Camera; 7. Light distribution plate; 8. First ball valve; 9. Second ball valve; 10. Cleaning pipe; and 11. Electrical control box. Detailed Implementation

[0011] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0012] like Figures 1-4 As shown, the SV online sludge settling observation device of this embodiment includes a sealed box 1, inside which a settling observation device is installed. The core of this settling observation device is a vertically arranged transparent glass observation tube 5. A camera 6 is installed on one side of the inner wall of the box 1, and a light source assembly is installed on the other side. The light source assembly consists of an LED light source and a light-diffusing plate 7 covering its front. The length of the light-diffusing plate 7 is not less than the length of the observation tube 5 to ensure uniform light throughout the observation area and reduce imaging shadows.

[0013] The upper part of the observation pipe 5 is connected to an inlet pipe 2 and an overflow pipe 4. One end of the inlet pipe 2 communicates with the upper part of the observation pipe 5 to form an inlet, and the other end extends to the outside of the tank 1 to receive the sludge mixture from the settling tank to be tested. A water pump then injects the water sample from the settling tank into the observation pipe 5. One end of the overflow pipe 4 communicates with the upper part of the observation pipe 5 to form an overflow outlet, and the height of the overflow outlet is lower than that of the inlet. The other end of the overflow pipe 4 extends downward through the tank 1 and into the settling tank to form a circulation loop for discharging excess mixture. A second ball valve 9 is installed on the overflow pipe 4.

[0014] The lower part of the observation tube 5 is connected to the outlet pipe 3, and a first ball valve 8 is installed at the connection between the outlet pipe 3 and the observation tube 5. By closing the first ball valve 8, a precise sealed space is formed between the first ball valve 8 and the lower edge of the overflow port in the observation tube 5, the volume of which is preset to 1000ml. This design ensures that the sample volume entering the observation tube 5 for sedimentation experiments remains constant each time, laying the foundation for subsequent accurate measurements and calculations.

[0015] At the top of the observation tube 5, a cleaning tube 10 is coaxially fitted. An ultrasonic transducer (not shown in the figure) is installed inside the cleaning tube 10, forming an ultrasonic cleaning device. After one observation cycle is completed, the first ball valve 8 and the second ball valve 9 are closed, allowing the mixed liquid to fill the observation tube 5, overflow pipe 4, and cleaning tube 10. The ultrasonic cleaning device can then be activated. The high-frequency vibration generated by the ultrasonic transducer cleans the inner wall of the observation tube 5 through the mixed liquid, preventing sludge residue from affecting the accuracy of the next observation.

[0016] In this embodiment, both the first ball valve 8 and the second ball valve 9 are electric ball valves. The camera 6 can be mounted on a fixed bracket or a movable bracket that can be finely adjusted vertically, horizontally, and vertically to precisely align with the observation area. Specifically, the movable bracket can be a single-track, double-track, or three-axis track structure, which is mature existing technology and will not be elaborated further. All these electrical components (electric ball valves, camera 6, light source, ultrasonic cleaning device) are connected to an electrical control box 11 located on or outside the housing 1. The electrical control box 11 supplies power to each component and can receive control commands (such as from a host computer or PLC) to automatically control the entire observation process: water intake, settling, image acquisition, drainage, cleaning, etc.

[0017] The specific work process is as follows: Water intake and quantification: Open inlet pipe 2 (either via pump or gravity flow), and the sludge mixture enters observation tube 5 from the settling tank. When the liquid level rises to the overflow port, excess liquid is discharged from overflow pipe 4. By controlling the inlet flow rate and time, or by utilizing the overflow, ensure that the sample liquid level in observation tube 5 remains stable at the overflow port height. At this point, the sample volume in the tube is the preset 1000ml.

[0018] Settling: After closing the inlet pipe 2, stop the water supply to maintain the liquid level. The mixture will begin to settle in the observation pipe 5. The settling process usually lasts for 30 minutes (can be set).

[0019] Image acquisition: During the settling process, with the assistance of the light source component, the camera 6 continuously takes pictures of the observation tube 5 at preset time intervals (such as every minute) to record the process of the sludge interface descending over time.

[0020] Data processing: The acquired images are transmitted to the processing unit (which can be integrated into the electrical control box 11 or the host computer). The height of the sludge interface is analyzed through image recognition algorithms, the settling volume at different time points is automatically calculated, and parameters such as SV30 are finally calculated. This data processing part is a mature existing technology and will not be described in detail.

[0021] Drainage and Cleaning: After the settlement observation is completed, open the first ball valve 8 to drain the sludge from the observation tube 5. Then close the first ball valve 8 and the second ball valve 9, and inject a small amount of clean water into the observation tube 5 or inject a mixed solution through the inlet pipe 2 until the observation tube 5, overflow pipe 4, and cleaning pipe 10 are full. Start the ultrasonic cleaning device in the cleaning pipe 10. The ultrasonic transducer generates high-frequency vibration, and the vibration energy is transferred through the liquid inside the pipe, thereby ultrasonically cleaning the inner wall of the observation tube 5. After cleaning is completed, open the first ball valve 8 and the second ball valve 9 to drain the cleaning water, and the device is ready for the next observation cycle.

[0022] This invention combines structural innovation with automated control to achieve online, automatic, and accurate observation of sludge settling ratio, effectively overcoming the drawbacks of manual measurement and providing reliable data support for the refined management and intelligent control of wastewater treatment plants.

[0023] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. The SV online sludge settling observation device, characterized in that: The device includes a housing, within which a sedimentation monitoring device is installed. The sedimentation monitoring device comprises an inlet pipe, an outlet pipe, an overflow pipe, and an observation pipe. The observation pipe is made of transparent material and is vertically positioned. Cameras and light source assemblies are respectively installed on both sides of the observation pipe, facing it. One end of the inlet pipe connects to the upper part of the observation pipe to form an inlet, and the other end penetrates the side wall of the housing and extends into the sedimentation tank. One end of the overflow pipe connects to the upper part of the observation pipe to form an overflow outlet, which is lower than the inlet. The other end of the overflow pipe extends downwards and penetrates the side wall of the housing. One end of the outlet pipe connects to the lower part of the observation pipe, and the other end penetrates the side wall of the housing. A first ball valve is installed between the outlet pipe and the observation pipe, and the volume of the observation pipe between the first ball valve and the lower edge of the overflow outlet is a preset volume.

2. The SV online sludge settling observation device as described in claim 1, characterized in that: A cleaning tube is coaxially sleeved at the top of the observation tube, and an ultrasonic cleaning device is installed in the cleaning tube; a second ball valve is installed on the overflow pipe.

3. The SV online sludge settling observation device as described in claim 2, characterized in that: Both the first ball valve and the second ball valve are electric ball valves.

4. The SV online sludge settling observation device as described in claim 3, characterized in that: It also includes an electrical control box, which is connected to the light source assembly, camera, first ball valve and second ball valve, providing them with power and / or communicating with them.

5. The SV online sludge settling observation device as described in claim 1, characterized in that: The camera is mounted on a camera bracket, which is either a fixed bracket fixed to the inner wall of the box or a movable bracket that can move the camera along the vertical, front-back, and / or left-right directions of the box.

6. The SV online sludge settling observation device as described in claim 1, characterized in that: The preset volume is 1000ml.

7. The SV online sludge settling observation device as described in claim 1, characterized in that: The light source assembly includes a light-diffusing plate mounted on the side wall of the enclosure, and a light source located between the light-diffusing plate and the side wall of the enclosure. The length of the light-diffusing plate is not less than the length of the observation tube.

8. The SV online sludge settling observation device as described in claim 1, characterized in that: The observation tube is a glass tube.

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