Online monitoring device for dissolved oxygen in aeration tank

Abstract

The invention relates to the field of sewage treatment, and provides an aeration tank dissolved oxygen on-line monitoring device, which comprises: a housing; the driving control module is arranged at one end of the shell and is used for driving the shell to move in the aeration tank; the dissolved oxygen sensor is arranged at the bottom of the shell; and the distance measuring sensor is arranged at the top of the shell and is used for monitoring the distance between the shell and the edge of the aeration tank. The method and the device are used for overcoming the defect that the sewage treatment process is affected due to the fact that an aeration tank cannot be regulated and controlled in time in the prior art, and the scheme of the application can effectively guarantee the integrity and accuracy of dissolved oxygen monitoring data, provides key technical support for real-time regulation and control of a sewage treatment process, and has important application value.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, and in particular to an online monitoring device for dissolved oxygen in an aeration tank. Background Technology

[0002] Wastewater treatment has become a major concern, and real-time dissolved oxygen (DO) measurement plays a crucial role in adjusting processes within aeration tanks. Excessively low DO levels can inhibit microbial growth, reducing organic matter removal rates, while excessively high DO levels lead to increased energy consumption. Real-time monitoring of DO and analysis of its changes in the wastewater treatment process can avoid problems such as untimely monitoring, high uncertainty, and significant lag, resulting in substantial energy savings for wastewater treatment.

[0003] In practical applications, aeration devices are usually installed at only one point in the aeration tank. This results in uneven distribution of dissolved oxygen in the tank, creating multiple different oxygen environments. This makes it very difficult to accurately measure dissolved oxygen and fails to truly reflect the distribution of dissolved oxygen and the environmental conditions, which is very detrimental to the subsequent control and treatment effects of the aeration tank.

[0004] In recent years, the problem of uneven dissolved oxygen distribution has been continuously studied and improved. However, related technologies often fail to achieve good control effects in practical applications and generate high energy consumption. The lack of wireless communication between the devices and users prevents timely data acquisition, hindering timely regulation of the aeration tanks. Furthermore, most wastewater treatment plants rely on online monitoring devices installed in various locations. These devices are complex, bulky, and numerous, resulting in high construction and maintenance costs, all of which can potentially impact the wastewater treatment process within the aeration tanks.

[0005] In conclusion, there is an urgent need for a more effective and convenient online dissolved oxygen monitoring device to meet the needs of wastewater treatment. Summary of the Invention

[0006] This invention provides an online dissolved oxygen monitoring device for aeration tanks, which addresses the shortcomings of related technologies that cannot timely regulate aeration tanks, thus affecting the wastewater treatment process. The solution in this application can effectively ensure the integrity and accuracy of dissolved oxygen monitoring data, providing key technical support for real-time regulation of wastewater treatment processes and has significant application value.

[0007] This invention provides an online dissolved oxygen monitoring device for an aeration tank, comprising: case; A drive control module is located at one end of the housing and is used to drive the housing to move in the aeration tank; A dissolved oxygen sensor is located at the bottom of the housing; A distance sensor is installed on the top of the housing to monitor the distance between the housing and the edge of the aeration tank.

[0008] According to the online dissolved oxygen monitoring device for aeration tank provided by the present invention, the first end of the shell is provided with the drive control module, and the first end is perpendicular to the top and bottom surfaces of the shell. The second end of the housing is away from the drive control module, and the second end is arc-shaped.

[0009] The online dissolved oxygen monitoring device for aeration tank provided by the present invention further includes a wireless transmission module; The wireless transmission module is electrically connected to the ranging sensor and the dissolved oxygen sensor.

[0010] The online dissolved oxygen monitoring device for aeration tank provided by the present invention also includes a cloud server; The cloud server is wirelessly connected to the wireless transmission module.

[0011] According to the online dissolved oxygen monitoring device for aeration tank provided by the present invention, the number of drive control modules is two.

[0012] According to the online dissolved oxygen monitoring device for aeration tank provided by the present invention, the drive control module is connected to the power supply module; The power supply module is either a battery pack or a solar panel.

[0013] The online dissolved oxygen monitoring device for aeration tanks provided by this invention has at least the following beneficial effects: (1) The intelligent mobile dissolved oxygen online monitoring device in this invention can monitor the dissolved oxygen in the overall environment of the aeration tank, which helps to understand the distribution and content changes of dissolved oxygen in the tank and ensures the integrity and accuracy of the obtained data.

[0014] (2) The real-time online monitoring function of dissolved oxygen in this invention improves the timeliness of the online monitoring device and effectively overcomes the inherent defects of large data lag in traditional measurement methods, thereby providing key basis for real-time monitoring of the operating conditions of the aeration tank and the control of subsequent process links.

[0015] (3) This invention combines with intelligent manufacturing and Internet big data technology to achieve a good human-computer interaction relationship. Users can receive dissolved oxygen monitoring data in real time on PC or mobile client, and can also make reasonable predictions on future changes in dissolved oxygen concentration based on historical data trends. This greatly improves the efficiency of data collection and processing, and provides users with reference and convenience for effectively adjusting the wastewater treatment process.

[0016] (4) The online monitoring device in this invention has a simple structure, small size, is easy to carry and maintain, which reduces manufacturing and operating costs. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is one of the structural schematic diagrams of the online dissolved oxygen monitoring device for aeration tank provided in the embodiments of the present invention; Figure 2 This is the second schematic diagram of the structure of the online dissolved oxygen monitoring device for aeration tank provided in this embodiment of the invention; Figure 3 This is a schematic diagram of the travel route of the online dissolved oxygen monitoring device for the aeration tank provided in this embodiment of the invention.

[0019] in: 1-Distance sensor; 2-Drive control module; 3-Power supply module; 4-Dissolved oxygen sensor; 5-Wireless transmission module; 6-Housing. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0021] Figure 1 This is one of the structural schematic diagrams of the online dissolved oxygen monitoring device for aeration tank provided in the embodiments of the present invention.

[0022] Figure 2 This is the second schematic diagram of the online dissolved oxygen monitoring device for aeration tank provided in this embodiment of the invention.

[0023] in Figure 1 This is the front view of the monitoring device. Figure 2 This is a top view, such as Figure 1 and Figure 2 As shown, this embodiment provides an online dissolved oxygen monitoring device for an aeration tank, comprising: Casing 6; A drive control module 2 is disposed at one end of the housing 6 and is used to drive the housing 6 to move in the aeration tank. Dissolved oxygen sensor 4 is located at the bottom of housing 6; Distance sensor 1 is installed on the top of the housing 6 to monitor the distance between the housing 6 and the edge of the aeration tank.

[0024] In practical applications, the drive control module 2 is provided at the first end of the housing 6, and the first end is perpendicular to the top and bottom surfaces of the housing 6. The second end of the housing 6 is far from the drive control module 2, and the second end is arc-shaped.

[0025] During implementation, such as Figure 2 As shown, there can be two drive control modules 2. For example, drive control module 2 can be a propeller.

[0026] In other words, the monitoring device provided in this application is boat-shaped and can move in the aeration tank under the drive of the drive control module 2. During this process, the dissolved oxygen content in various areas of the aeration tank can be collected in real time by the dissolved oxygen sensor 4 at the bottom of the shell 6. A distance sensor 1 is also installed at the top of the shell 6. The distance sensor 1 is suitable for measuring the distance between the monitoring device and the wall of the aeration tank. The drive control module 2 controls the movement of the device on the water surface according to the measured distance. The control logic of the movement rule is pre-programmed and stored in the microcontroller of the drive control module 2. For example, ... Figure 3 As shown, the monitoring device's path within the pool can be a continuous, approximately zigzag path, with a moving speed of 10–50 cm / s and a minimum distance of 20–50 cm between the device and the pool wall. The distance between the turning routes is 100–300 cm.

[0027] In summary, the online dissolved oxygen monitoring device for aeration tanks provided by this invention has at least the following beneficial effects: (1) The intelligent mobile dissolved oxygen online monitoring device in this invention can monitor the dissolved oxygen in the overall environment of the aeration tank, which helps to understand the distribution and content changes of dissolved oxygen in the tank and ensures the integrity and accuracy of the obtained data.

[0028] (2) The real-time online monitoring function of dissolved oxygen in this invention improves the timeliness of the online monitoring device and effectively overcomes the inherent defects of large data lag in traditional measurement methods, thereby providing key basis for real-time monitoring of the operating conditions of the aeration tank and the control of subsequent process links.

[0029] (3) This invention combines with intelligent manufacturing and Internet big data technology to achieve a good human-computer interaction relationship. Users can receive dissolved oxygen monitoring data in real time on PC or mobile client, and can also make reasonable predictions on future changes in dissolved oxygen concentration based on historical data trends. This greatly improves the efficiency of data collection and processing, and provides users with reference and convenience for effectively adjusting the wastewater treatment process.

[0030] (4) The online monitoring device in this invention has a simple structure, small size, is easy to carry and maintain, which reduces manufacturing and operating costs.

[0031] In an exemplary embodiment, the monitoring device provided in this application further includes a wireless transmission module 5, which is electrically connected to the ranging sensor 1, the dissolved oxygen sensor 4, and a cloud server.

[0032] During operation, the data acquisition of the dissolved oxygen sensor 4 is controlled by the data acquisition and wireless transmission module 5. The wireless transmission module 5 uploads the dissolved oxygen data and the distance between the device and the surrounding pool walls to the cloud server at fixed time intervals (2~30 seconds). Users can view the device location and dissolved oxygen content in real time through a PC or mobile client. Furthermore, the dissolved oxygen sensor 4 is connected to the housing 6 via a connecting cable, which is controlled by the wireless transmission module 5 and a micro motor. Users can also issue commands through a PC or mobile client to remotely control the micro motor to selectively adjust the long power line so that the dissolved oxygen sensor 4 is positioned at different depths in the pool to collect dissolved oxygen data.

[0033] In an exemplary embodiment, after completing one monitoring operation on the water surface, the monitoring device returns to the surface after 1 to 2 hours according to its course rules to perform another operation.

[0034] In an exemplary embodiment, such as Figure 1 As shown, the drive control module 2 is connected to the power supply module 3; The power supply module 3 is a battery pack or a solar panel.

[0035] In addition, dissolved oxygen sensor 4 and ranging sensor 1 are both electrically connected to power supply module 3 and are powered by power supply module 3.

[0036] The following is a detailed description of the online dissolved oxygen monitoring device for aeration tank provided in this application and its working method, using a specific embodiment as an example.

[0037] The monitoring device provided by this invention operates in the aeration tank of a wastewater treatment plant, moving in an approximately "V" shaped path at a speed of 20 cm / s. During movement, the distance sensor 1 measures the closest distance between the device and the tank wall as 30 cm, and the distance between the turning routes as 200 cm. Data measured by the dissolved oxygen sensor 4 is transmitted to the data acquisition and wireless transmission module 5. Every 5 seconds, the dissolved oxygen value and the distance between the device and the surrounding tank walls are sent to a cloud server. Users can view the device's location and dissolved oxygen values ​​in real time via a PC or mobile client, thereby understanding the real-time changes in dissolved oxygen in the aeration tank and predicting future dissolved oxygen changes. This achieves excellent intelligence, providing users with efficient and intuitive data support and decision-making convenience for understanding and optimizing the operation and control of the aeration tank. Furthermore, the monitoring device in this invention uses real-time wireless transmission and integrates with Internet technology, allowing users to obtain monitoring data promptly and make effective judgments and adjustments to the current and next stages of the treatment process, thus significantly improving the remote convenience and timeliness of the monitoring device.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An online dissolved oxygen monitoring device for an aeration tank, characterized in that, include: case; A drive control module is located at one end of the housing and is used to drive the housing to move in the aeration tank; A dissolved oxygen sensor is located at the bottom of the housing; A distance sensor is installed on the top of the housing to monitor the distance between the housing and the edge of the aeration tank.

2. The online dissolved oxygen monitoring device for aeration tank according to claim 1, characterized in that, The drive control module is provided at the first end of the housing, and the first end is perpendicular to the top and bottom surfaces of the housing. The second end of the housing is away from the drive control module, and the second end is arc-shaped.

3. The online dissolved oxygen monitoring device for aeration tank according to claim 1, characterized in that, It also includes a wireless transmission module; The wireless transmission module is electrically connected to the ranging sensor and the dissolved oxygen sensor.

4. The online dissolved oxygen monitoring device for aeration tank according to claim 3, characterized in that, This also includes cloud servers; The cloud server is wirelessly connected to the wireless transmission module.

5. The online dissolved oxygen monitoring device for aeration tank according to claim 1, characterized in that, The number of drive control modules is two.

6. The online dissolved oxygen monitoring device for aeration tank according to claim 1, characterized in that, The drive control module is connected to the power supply module; The power supply module is either a battery pack or a solar panel.

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