Oxygen concentration detection device for sewage treatment by A2O (anaerobic-anoxic-oxic) method

Abstract

The utility model discloses an oxygen concentration detection device for sewage treatment by an A2O (anaerobic-anoxic-oxic) method, and aims to solve the problems that the effectiveness of an oxygen concentration detection device for the process treatment in the prior art is influenced by low automation degree, and the detection accuracy is influenced by unreasonable arrangement of the device. The device comprises a detection mechanism and a transmission mechanism used for transmitting signals and connected to the detection mechanism, and a control mechanism is further connected to the middle position of the transmission mechanism. The detection mechanism comprises a ball screw module fixed on the biochemical pool and a detection pen connected to the ball screw module; one end part of the transmission mechanism is provided with a limiting ring sleeved on the detection pen; the control mechanism adopted by the device can actively set an oxygen concentration detection threshold value, and an alarm lamp is arranged in the control mechanism, so that the automation degree of the device is high, and the oxygen concentration condition of the device is reflected in time; by adopting the limiting ring, the data transmission line can be prevented from falling into water, so that the influence of external factors on the concentration detection accuracy is avoided.

Description

Technical Field

[0001] The utility model relates to the fields of environmental protection technology and water treatment technology, and in particular to an oxygen concentration detection device for sewage treatment using an A2O method. Background Art

[0002] The A2O process is a commonly used wastewater treatment process, an abbreviation of the terms anaerobic, anoxic, and aerobic. It is a secondary wastewater treatment process that simultaneously removes nitrogen and phosphorus, and can be used for both secondary and tertiary wastewater treatment. Different treatment stages in the A2O process require different oxygen concentrations. Anaerobic tanks primarily release phosphorus, requiring no oxygen. Anoxic tanks undergo denitrification, reducing NO3-N and NO2-N to N2, also requiring no oxygen. In aerobic tanks, organic matter is biochemically degraded by microorganisms, and organic nitrogen is ammonified and subsequently nitrified, requiring an adequate oxygen supply. Controlling oxygen concentration is crucial for the effectiveness of nitrogen and phosphorus removal in the A2O process. Excessively high or low oxygen concentrations can affect process stability and efficiency. To ensure stable operation and optimal treatment results, real-time monitoring of oxygen concentration at each treatment stage is necessary. This can be achieved by installing an oxygen concentration monitoring device.

[0003] For example, a patent with application number CN202120161377.0 discloses an oxygen concentration detection device for an anaerobic tank used in an A2O sewage treatment process. This device is equipped with an oxygen concentration detection box, a display table, and a detection probe installed on a T-shaped slider, which can achieve the purpose of real-time display of oxygen concentration. However, the disadvantage of this device is that the indicator light installed in this device can only display the working status and cannot issue an alarm signal, and this device cannot automatically detect changes in oxygen concentration in the tank. When the staff does not check it in time, it is easy to cause the oxygen concentration to exceed the range, reducing the effectiveness of the detection of this device; and the data cable in this device is not limited. When the water level in the biochemical pool is high, the data cable is easy to fall into the sewage pool, affecting the transmission performance of the data cable, and thus affecting the accuracy of the detection. In order to better detect the oxygen concentration in each treatment stage of the A2O process, a new oxygen concentration detection device is urgently needed to solve the above problems.

[0004] The information disclosed in this background technology section is only used to deepen the understanding of the background technology of the present disclosure and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art known to those skilled in the art. Utility Model Content

[0005] In view of at least one of the above technical problems, the present disclosure provides an oxygen concentration detection device for wastewater treatment using the A2O method, aiming to solve the problems in the prior art of oxygen concentration detection devices used for this process treatment, such as low degree of automation affecting their effectiveness and unreasonable device settings affecting detection accuracy.

[0006] According to one aspect of the present disclosure, an A2O method sewage treatment oxygen concentration detection device is provided, comprising a plurality of detection mechanisms fixedly mounted on a sewage treatment biochemical tank, a transmission mechanism for transmitting signals and connected to the detection mechanisms, a control mechanism further connected at a middle position of the transmission mechanism, and a fixed base connected to the lower portion of the transmission mechanism and the control mechanism.

[0007] In some embodiments of the present disclosure, the detection mechanism includes a ball screw module fixed on the biochemical pool, a detection pen connected to the ball screw module, and a connecting column fixed between the ball screw module and the detection pen for connection.

[0008] In some embodiments of the present disclosure, the detection pen includes a detection cylinder fixed on the ball screw module and a detection head fixedly connected to the lower end of the detection cylinder. The detection cylinder is also provided with a wire outlet for cooperating with the transmission mechanism to limit the position.

[0009] In some embodiments of the present disclosure, the detection pen is arranged above the biochemical pool perpendicular to the bottom surface of the biochemical pool; when in use, the ball screw module drives the detection pen to move up and down so that the detection head is in the area to be detected.

[0010] In some embodiments of the present disclosure, the transmission mechanism includes a limiting ring mounted on the detection pen, a strip groove fixedly connected to the limiting ring, and a main strip groove fixedly connected to the strip groove. A transmission line extending into the detection cylinder and connected to the detection head is also provided in the strip groove. A support column for supporting the transmission mechanism and fixed on a fixed base is also provided at the connection between the strip groove and the main strip groove. A notch corresponding to the position of the connecting column and larger than the width of the connecting column is opened on the limiting ring.

[0011] In some embodiments of the present disclosure, a wire storage groove for storing excess length of transmission wire is further provided in the support column.

[0012] In some embodiments of the present disclosure, a wire opening is provided in the middle of the main bar groove, and the other end of the transmission line extends into the main bar groove and passes through the wire opening to be connected to the control mechanism.

[0013] In some embodiments of the present disclosure, the control mechanism is provided with an alarm light for displaying an alarm signal, a display screen for displaying the detected oxygen concentration, and a control button for setting the oxygen concentration threshold. A support plate for supporting the control mechanism and fixed on a fixed base is also provided under the control mechanism.

[0014] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0015] 1. The device of the present application adopts a control mechanism equipped with an alarm light, a display screen and a control button to actively set the oxygen concentration detection threshold in different biochemical pools. The alarm light can flash and alarm when the staff does not check in time, making the device of the present application highly automated, more effectively detecting the oxygen concentration in the biochemical pool and reflecting its oxygen concentration status more timely.

[0016] 2. The device of the present application adopts a limit ring and a wire storage groove to prevent the data transmission line from falling into the water when the water level in the pool is high, thereby preventing external factors from affecting the accuracy of concentration detection. In addition, the detection mechanism of the device of the present application is driven up and down by a motor, which is more time-saving and labor-saving than manual rotation.

[0017] 3. The device of the present application uses multiple detection mechanisms connected to a control mechanism for simultaneous detection, which not only ensures the effectiveness and accuracy of detection, but also further improves work efficiency and ensures the stable operation of the A2O process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of a detection device in one embodiment of the present application;

[0019] Figure 2 for Figure 1 A magnified schematic diagram of the middle part A;

[0020] Figure 3 This is a schematic diagram of the structure of the detection device when it is installed in one embodiment of the present application;

[0021] Figure 4 A partial cross-sectional view of a detection device in one embodiment of the present application;

[0022] Figure 5 This is a schematic diagram of the structure of a detection pen in one embodiment of the present application;

[0023] Figure 6 Schematic diagram of the structure of a detection device in one embodiment of the present application.

[0024] In the above figures, 1. anaerobic tank; 2. anoxic tank; 3. aerobic tank; 4. detection mechanism; 41. ball screw module; 411. module fixing plate; 42. detection pen; 421. detection head; 422. detection tube; 4221. wire outlet; 43. connecting column; 5. transmission mechanism; 51. limiting ring; 52. strip groove; 53. main strip groove; 54. transmission line; 55. support column; 551. wire storage groove; 6. control mechanism; 61. alarm light; 62. display screen; 63. control button; 64. support plate; 7. fixed base. DETAILED DESCRIPTION

[0025] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", "vertical", "horizontal", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on this application. The "first", "second", etc. involved in this application are used to distinguish the objects being described and do not have any order or technical meaning. The "connection" and "connection" involved in this application, unless otherwise specified, include direct and indirect connections (connections).

[0026] The embodiment of the present application provides an oxygen concentration detection device for wastewater treatment using the A2O method, thereby solving the problems in the prior art of oxygen concentration detection devices used for this process, such as low automation affecting their effectiveness and unreasonable device settings affecting detection accuracy. In order to better understand the technical solution of the present application, the above technical solution will be described in detail below in conjunction with the drawings in the specification and specific implementation methods.

[0027] This example discloses an A2O method sewage treatment oxygen concentration detection device, see Figures 1 to 6 Specifically, it includes multiple detection mechanisms 4 fixedly installed on the sewage treatment biochemical pool, a transmission mechanism 5 for transmitting signals and connected to the detection mechanism 4, a control mechanism 6 is also connected to the middle position of the transmission mechanism 5, and a fixed base 7 is connected to the lower part of the transmission mechanism 5 and the control mechanism 6.

[0028] The detection mechanism 4 includes a ball screw module 41 fixed to the biochemical pool, a detection pen 42 connected to the ball screw module 41, and a connecting post 43 fixed between the ball screw module 41 and the detection pen 42 for connection. The detection pen 42 includes a detection barrel 422 fixed to the ball screw module 41 and a detection head 421 fixedly connected to the lower end of the detection barrel 422. The detection barrel 422 also has a wire outlet 4221 for cooperating with the transmission mechanism 5 to limit the position. The detection pen 42 is arranged above the biochemical pool, perpendicular to the bottom surface of the biochemical pool; during use, the ball screw module 41 drives the detection pen 42 to move up and down, so that the detection head 421 is within the area to be detected.

[0029] The transmission mechanism 5 includes a limiting ring 51 mounted on the detection pen 42, a strip groove 52 fixedly connected to the limiting ring 51, and a main strip groove 53 fixedly connected to the strip groove 52. A transmission line 54 extending into the detection barrel 422 and connected to the detection head 421 is also provided in the strip groove 52. A support column 55 for supporting the transmission mechanism 5 and fixed to the fixed base 7 is also provided at the connection between the strip groove 52 and the main strip groove 53. A notch corresponding to the position of the connecting column 43 and larger than the width of the connecting column 43 is provided on the limiting ring 51. A line storage groove 551 for storing excess length of the transmission line 54 is also provided in the support column 55. The device of the present application uses the limiting ring 51 and the line storage groove 551 to prevent the transmission line 54 from falling into the water when the water level in the pool is high, thereby preventing external factors from affecting the accuracy of the concentration detection. A wire opening is provided in the middle of the main slot 53 , and the other end of the transmission line 54 extends into the main slot 53 and passes through the wire opening to be connected to the control mechanism 6 .

[0030] The control mechanism 6 is provided with an alarm light 61 for displaying an alarm signal, a display screen 62 for displaying the detected oxygen concentration, and a control button 63 for setting an oxygen concentration threshold. A support plate 64 is also provided below the control mechanism 6 for supporting the control mechanism 6 and fixed to a fixed base 7. The device of the present application utilizes a control mechanism 63 equipped with an alarm light 61, a display screen 62, and a control button 63 to proactively set the oxygen concentration detection threshold in different biochemical pools. Furthermore, the alarm light 61 can display an alarm even when staff fail to check the oxygen concentration in a timely manner. This results in a higher degree of automation for the device of the present application, more effective detection of oxygen concentration in the biochemical pool, and more timely reflection of the oxygen concentration.

[0031] When implementing the device of the present application, the detection device is first placed in the designated position and fixed on the sides of the anaerobic tank 1, the anoxic tank 2, and the aerobic tank 3 through the module fixing plate 411; at this time, one end of the transmission line 54 placed in the strip groove 52 and the main strip groove 53 is connected to the detection head 421 through the detection tube 422, and the other end is connected to the control mechanism 6 through the wire groove, and the excess length of the transmission line 540 will be stored in the wire storage groove 551 opened in the support column 55; after the installation is completed, the ball screw module 41 is operated, and the ball screw module 41 drives the detection pen 42 to move downward. At this time, the wire in the wire storage groove 551 is slowly pulled out under the downward force of the detection pen 42, and is always in the detection pen 42 under the limit of the limit ring 51; when the detection head 421 reaches the position to be measured, the ball screw module 41 is stopped; then the control mechanism 6 is debugged, and the control button 63 on the control mechanism 6 is used to set different detection positions of the detection mechanism 4. The threshold value is set, and each detection mechanism 4 is equipped with a corresponding alarm light 61 and display screen 62. After the setting is completed, it starts to operate. The sensor set in the detection pen 42 senses the oxygen concentration in real time and generates a corresponding current physical quantity. The current is transmitted to the control mechanism 6 through the transmission line 54. The control mechanism 6 is provided with an analog-to-digital converter to convert the electrical signal into a digital signal. The converted signal can be further analyzed and processed by the processor to display the oxygen concentration value in real time on the display screen 62. When the detected oxygen concentration is greater than or less than the set threshold, the alarm light 61 flashes and lights up a red alarm signal. After seeing it, the staff can make a timely treatment plan according to the oxygen concentration value on the display screen. The device of the present application uses multiple detection mechanisms 4 connected to a control mechanism 6 for simultaneous detection. While ensuring the effectiveness and accuracy of the detection, it also further improves the work efficiency and ensures the stable operation of the A2O process. In addition, the sensors, analog-to-digital converters and processors used in the oxygen concentration detection process in the embodiment of the present application are all existing technologies, and the specific working principles are not repeated in this solution.

[0032] Although some preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including all changes and modifications that fall within the scope of the present invention as well as the preferred embodiments.

[0033] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of this application and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. An A2O method sewage treatment oxygen concentration detection device, characterized in that: The invention comprises a plurality of detection mechanisms (4) fixedly mounted on a sewage treatment biochemical pool, a transmission mechanism (5) for transmitting signals and connected to the detection mechanism (4), a control mechanism (6) connected to the middle position of the transmission mechanism (5), and a fixed base (7) connected to the lower part of the transmission mechanism (5) and the control mechanism (6).

2. The A2O method sewage treatment oxygen concentration detection device according to claim 1, characterized in that: The detection mechanism (4) comprises a ball screw module (41) fixed on the biochemical pool, a detection pen (42) connected to the ball screw module (41), and a connecting column (43) fixed between the ball screw module (41) and the detection pen (42) for connection.

3. The A2O method sewage treatment oxygen concentration detection device according to claim 2, characterized in that: The detection pen (42) comprises a detection barrel (422) fixed on the ball screw module (41) and a detection head (421) fixedly connected to the lower end of the detection barrel (422). The detection barrel (422) is also provided with a wire outlet (4221) for cooperating with the transmission mechanism (5) for limiting.

4. The A2O method sewage treatment oxygen concentration detection device according to claim 3, characterized in that: The detection pen (42) is arranged above the biochemical pool perpendicular to the bottom surface of the biochemical pool; when in use, the ball screw module (41) drives the detection pen (42) to move up and down so that the detection head (421) is located in the area to be detected.

5. The A2O method sewage treatment oxygen concentration detection device according to claim 4, characterized in that: The transmission mechanism (5) comprises a limiting ring (51) sleeved on the detection pen (42), a striping groove (52) fixedly connected to the limiting ring (51), and a main striping groove (53) fixedly connected to the striping groove (52); a transmission line (54) extending into the detection cylinder (422) and connected to the detection head (421) is also provided in the striping groove (52); a support column (55) for supporting the transmission mechanism (5) and fixed to the fixed base (7) is also provided at the connection between the striping groove (52) and the main striping groove (53); a notch corresponding to the position of the connecting column (43) and larger than the width of the connecting column (43) is opened on the limiting ring (51).

6. The A2O method sewage treatment oxygen concentration detection device according to claim 5, characterized in that: A wire storage groove (551) for storing excess transmission wire (54) is also provided in the support column (55).

7. The A2O method sewage treatment oxygen concentration detection device according to claim 6, characterized in that: A wire opening is provided in the middle of the main slot (53), and the other end of the transmission line (54) extends into the main slot (53) and passes through the wire opening to be connected to the control mechanism (6).

8. The A2O method sewage treatment oxygen concentration detection device according to claim 7, characterized in that: The control mechanism (6) is provided with an alarm light (61) for displaying an alarm signal, a display screen (62) for displaying the detected oxygen concentration, and a control button (63) for setting an oxygen concentration threshold value. A support plate (64) for supporting the control mechanism (6) and fixed on a fixed base (7) is also provided under the control mechanism (6).

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