Online monitoring dissolved oxygen adjustment valve opening device

Abstract

The utility model relates to sewage equipment technical field, concretely is on -line monitoring dissolved oxygen adjustment valve opening degree device, including anaerobic tank, anoxic tank, aerobic tank and setting at outside's PLC controller, the top of anaerobic tank, anoxic tank and aerobic tank all are provided with dissolved oxygen sensor, the outside of dissolved oxygen sensor all is provided with cleaning mechanism, the outside of anaerobic tank, anoxic tank and aerobic tank is provided with gas pipe and air -blower respectively, the outside of gas pipe is respectively covered and sets up one electric butterfly valve, no. 2 electric butterfly valve and no. 3 electric butterfly valve, the top intercommunication of anaerobic tank is provided with one connecting pipe, the top intercommunication of anoxic tank is provided with no. 2 connecting pipe, the top intercommunication of aerobic tank is provided with no. 3 connecting pipe, through setting on -line monitoring dissolved oxygen adjustment valve opening degree device, to utilize the structural design in cleaning mechanism, further ensure the measurement accuracy of dissolved oxygen sensor, be favorable to subsequent monitoring.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment equipment technology, specifically to a device for adjusting the opening of an online dissolved oxygen monitoring valve. Background Technology

[0002] In the field of wastewater treatment, dissolved oxygen concentration is a key parameter for the treatment efficiency of anaerobic, anoxic, and aerobic tanks.

[0003] Currently used online dissolved oxygen monitoring valve opening devices mostly rely on dissolved oxygen sensors to measure the dissolved oxygen content in the water. The detection end of these sensors is easily covered by particulate matter, which affects the measurement accuracy of the device and is not conducive to subsequent monitoring. At the same time, the valve adjustment in these devices mostly lacks real-time feedback linkage, which can easily lead to over-aeration or under-aeration, which is not conducive to subsequent use.

[0004] In summary, this utility model solves the problems in the background art by designing an online dissolved oxygen monitoring and valve opening adjustment device. Utility Model Content

[0005] The purpose of this invention is to provide an online device for monitoring dissolved oxygen and adjusting valve opening, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An online dissolved oxygen monitoring and valve opening adjustment device includes an anaerobic tank, an anoxic tank, an aerobic tank, and an externally mounted PLC controller. Dissolved oxygen sensors are installed at the top of each of the anaerobic, anoxic, and aerobic tanks. Cleaning mechanisms are installed on the outside of each dissolved oxygen sensor. Gas supply pipes and blowers are respectively installed on the outside of each of the anaerobic, anoxic, and aerobic tanks. Electric butterfly valves No. 1, No. 2, and No. 3 are respectively fitted onto the outside of each gas supply pipe. A check valve is installed at the output end of the blower. A No. 1 connecting pipe is connected to the top of the anaerobic tank, a No. 2 connecting pipe is connected to the top of the anoxic tank, and a No. 3 connecting pipe is connected to the top of the aerobic tank.

[0008] The cleaning mechanism includes a micro motor, which is fixedly installed on the top surface of the anaerobic tank, the anoxic tank and the aerobic tank respectively, and the outer surface of the micro motor does not contact the surface of the dissolved oxygen sensor. A cleaning scraper is fixedly sleeved on the output end of the micro motor.

[0009] Furthermore, the output end of the micro motor extends into the interior of the anaerobic tank, the anoxic tank, and the aerobic tank, and the cleaning scraper forms a rotational contact with the detection end of the dissolved oxygen sensor;

[0010] Through the above technical solution, the micro motor can drive the cleaning blade, causing the cleaning blade to rotate and come into contact with the detection end of the dissolved oxygen sensor.

[0011] Furthermore, the cleaning scraper is a flexible carbon fiber scraper;

[0012] The above technical solution facilitates contact between the cleaning blade and the dissolved oxygen sensor through the use of flexible carbon fiber.

[0013] Furthermore, the anaerobic tank and the anoxic tank are interconnected by pipes, and the anoxic tank and the aerobic tank are interconnected by pipes.

[0014] Through the above technical solution, sewage can flow between the anaerobic tank, the anoxic tank, and the aerobic tank via pipelines.

[0015] Furthermore, the first connecting pipe is connected to the end of the gas supply pipe and is located at the left end of the first electric butterfly valve; one end of the second connecting pipe is connected to the middle of the outer side of the gas supply pipe and is located at the left end of the second electric butterfly valve; one end of the third connecting pipe is connected to the right side of the outer side of the gas supply pipe and is located at the left end of the third electric butterfly valve; and the right end of the gas supply pipe is connected to the check valve.

[0016] Through the above technical solution, the No. 1 electric butterfly valve can control the air supply of the No. 1 connecting pipe, the No. 2 electric butterfly valve can control the air supply of the No. 2 connecting pipe, and the No. 3 electric butterfly valve can control the air supply of the No. 3 connecting pipe.

[0017] Furthermore, the dissolved oxygen sensor, blower, electric butterfly valve No. 1, electric butterfly valve No. 2, and electric butterfly valve No. 3 are electrically connected to the PLC controller via wires.

[0018] Through the above technical solution, the dissolved oxygen sensor can measure the dissolved oxygen content in the anaerobic tank, anoxic tank and aerobic tank respectively and feed it back to the PLC controller, which can open or close the No. 1 electric butterfly valve, the No. 2 electric butterfly valve and the No. 3 electric butterfly valve.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. In this utility model, by setting an online dissolved oxygen monitoring and adjusting valve opening device, the cleaning mechanism utilizes its structural design to drive the cleaning scraper with a micro motor, causing the cleaning scraper to clean the dissolved oxygen sensor, thereby ensuring the measurement accuracy of the dissolved oxygen sensor and facilitating subsequent monitoring.

[0021] 2. In this utility model, by setting up an online dissolved oxygen monitoring and valve opening adjustment device, the structural design of the dissolved oxygen sensor, the No. 1 electric butterfly valve, the No. 2 electric butterfly valve, the No. 3 electric butterfly valve, and the PLC controller, with the cooperation of the dissolved oxygen sensor and the PLC controller, can facilitate the periodic opening and closing of the No. 1 electric butterfly valve and adjust the valve opening of the No. 2 and No. 3 electric butterfly valves, thereby effectively avoiding excessive or insufficient aeration, which is beneficial for subsequent use. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the cleaning mechanism of this utility model;

[0024] Figure 3 This is a schematic diagram of the system block structure of the device of this utility model.

[0025] In the diagram: 1. Anaerobic tank; 101. Connecting pipe No. 1; 2. Anoxic tank; 201. Connecting pipe No. 2; 3. Aerobic tank; 301. Connecting pipe No. 3; 4. PLC controller; 5. Dissolved oxygen sensor; 6. Cleaning mechanism; 601. Micro motor; 602. Cleaning scraper; 7. Gas supply pipe; 701. Electric butterfly valve No. 1; 702. Electric butterfly valve No. 2; 703. Electric butterfly valve No. 3; 8. Blower; 801. Check valve. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0027] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, and several embodiments of the utility model will be provided. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and complete.

[0028] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0030] For examples, please refer to Figure 1-3 This utility model provides a technical solution:

[0031] An online dissolved oxygen monitoring and valve opening adjustment device includes an anaerobic tank 1, an anoxic tank 2, an aerobic tank 3, and an externally mounted PLC controller 4. Dissolved oxygen sensors 5 are installed at the top of the anaerobic tank 1, anoxic tank 2, and aerobic tank 3. Cleaning mechanisms 6 are installed on the outside of the dissolved oxygen sensors 5. Gas supply pipes 7 and blowers 8 are installed on the outside of the anaerobic tank 1, anoxic tank 2, and aerobic tank 3, respectively. Electric butterfly valves 701, 702, and 703 are respectively fitted on the outside of the gas supply pipes 7. A check valve 801 is installed at the output end of the blower 8. A connecting pipe 101 is connected to the top of the anaerobic tank 1, a connecting pipe 201 is connected to the top of the anoxic tank 2, and a connecting pipe 301 is connected to the top of the aerobic tank 3.

[0032] Specifically, anaerobic tank 1 and anoxic tank 2 are connected to each other by pipes, and anoxic tank 2 and aerobic tank 3 are connected to each other by pipes.

[0033] In this implementation scheme, the anaerobic tank 1 can be connected to the anoxic tank 2 through a pipeline, and the anoxic tank 2 can be connected to the aerobic tank 3 through a pipeline.

[0034] Specifically, the first connecting pipe 101 is connected to the end of the gas supply pipe 7, and the first connecting pipe 101 is located at the left end of the first electric butterfly valve 701. One end of the second connecting pipe 201 is connected to the middle of the outer side of the gas supply pipe 7, and the second connecting pipe 201 is located at the left end of the second electric butterfly valve 702. One end of the third connecting pipe 301 is connected to the right side of the outer side of the gas supply pipe 7, and the third connecting pipe 301 is located at the left end of the third electric butterfly valve 703. The right end of the gas supply pipe 7 is connected to the check valve 801. The dissolved oxygen sensor 5, the blower 8, the first electric butterfly valve 701, the second electric butterfly valve 702, and the third electric butterfly valve 703 are electrically connected to the PLC controller 4 through wires.

[0035] In this implementation scheme, the blower 8 is configured to supply gas to connecting pipes 101, 201, and 301 via the gas supply pipe 7. Connecting pipe 101 facilitates gas entry into anaerobic tank 1, connecting pipe 201 facilitates gas entry into anoxic tank 2, and connecting pipe 301 facilitates gas entry into aerobic tank 3. Simultaneously, the dissolved oxygen sensor 5 measures the dissolved oxygen content in anaerobic tank 1, anoxic tank 2, and aerobic tank 3, respectively, and feeds the data back to the PLC controller 4. Meanwhile, PLC controller 4 periodically starts and stops the No. 1 electric butterfly valve 701, with a cycle of 10 minutes of operation followed by 50 minutes of shutdown, ensuring that the dissolved oxygen content in anaerobic tank 1 is below 0.05 mg / L. Based on the feedback measurement information, it also adaptively adjusts the valve openings of the No. 2 electric butterfly valve 702 and the No. 3 electric butterfly valve 703, resulting in a dissolved oxygen content in anoxic tank 2 below 0.5 mg / L and a dissolved oxygen content in aerobic tank 3 between 2 and 3 mg / L, meeting the needs of the users.

[0036] In this embodiment, please refer to Figure 1 and Figure 3 The cleaning mechanism 6 includes a micro motor 601, which is fixedly installed on the top surface of the anaerobic tank 1, the anoxic tank 2 and the aerobic tank 3 respectively. The outer surface of the micro motor 601 does not contact the surface of the dissolved oxygen sensor 5. The output end of the micro motor 601 is fixedly fitted with a cleaning scraper 602.

[0037] Specifically, the output end of the micro motor 601 extends into the interior of the anaerobic tank 1, the anoxic tank 2 and the aerobic tank 3, and the cleaning scraper 602 forms a rotational contact with the detection end of the dissolved oxygen sensor 5. The cleaning scraper 602 is a flexible carbon fiber scraper.

[0038] In this embodiment, the micro motor 601 is electrically connected to the PLC controller 4 via a wire. The micro motor 601 is configured to drive the cleaning scraper 602 to rotate, causing the cleaning scraper 602 to contact the detection end of the dissolved oxygen sensor 5, thereby achieving the function of scraping away dirt from the detection end of the dissolved oxygen sensor 5, ensuring the measurement accuracy of the dissolved oxygen sensor 5, and facilitating subsequent use.

[0039] The working process of this utility model is as follows: When using the online dissolved oxygen monitoring and valve opening adjustment device, the dissolved oxygen sensor 5 can measure the dissolved oxygen content in the anaerobic tank 1, anoxic tank 2, and aerobic tank 3 in real time and feed it back to the PLC controller 4. The PLC controller 4 then starts the blower 8 and periodically starts and stops the first electric butterfly valve 701. Subsequently, gas enters the anaerobic tank 1, anoxic tank 2, and aerobic tank 3 through the gas delivery pipe 7, the first connecting pipe 101, the second connecting pipe 201, and the third connecting pipe 301, respectively. The PLC controller 4 then adjusts the valve opening according to the dissolved oxygen content. The data from the oxygenation tank 2 and the aerobic tank 3 are used to adjust the opening of the electric butterfly valve 702 (No. 2) and the electric butterfly valve 703 (No. 3), respectively, to ensure that the dissolved oxygen content in the anoxic tank 2 is below 0.5 mg / L and the dissolved oxygen content in the aerobic tank 3 is 2-3 mg / L, meeting the needs of the users. At the same time, the micro motor 601 is started, causing the micro motor 601 to drive the cleaning scraper 602 to rotate, so that the cleaning scraper 602 scrapes away the dirt on the detection end of the dissolved oxygen sensor 5, ensuring the measurement effect of the dissolved oxygen sensor 5 and facilitating subsequent monitoring.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An online dissolved oxygen monitoring and adjustment valve opening device, comprising an anaerobic tank (1), an anoxic tank (2), an aerobic tank (3), and an externally mounted PLC controller (4), characterized in that: Dissolved oxygen sensors (5) are installed at the top of the anaerobic tank (1), the anoxic tank (2), and the aerobic tank (3). A cleaning mechanism (6) is installed on the outside of each dissolved oxygen sensor (5). A gas supply pipe (7) and a blower (8) are installed on the outside of the anaerobic tank (1), the anoxic tank (2), and the aerobic tank (3), respectively. A first electric butterfly valve (701), a second electric butterfly valve (702), and a third electric butterfly valve (703) are respectively fitted on the outside of the gas supply pipe (7). A check valve (801) is installed at the output end of the blower (8). A first connecting pipe (101) is connected to the top of the anaerobic tank (1). A second connecting pipe (201) is connected to the top of the anoxic tank (2). A third connecting pipe (301) is connected to the top of the aerobic tank (3).

2. The online dissolved oxygen monitoring and valve opening adjustment device according to claim 1, characterized in that: The cleaning mechanism (6) includes a micro motor (601), which is fixedly installed on the top surface of the anaerobic tank (1), the anoxic tank (2) and the aerobic tank (3), respectively. The outer surface of the micro motor (601) does not contact the surface of the dissolved oxygen sensor (5). The output end of the micro motor (601) is fixedly fitted with a cleaning scraper (602).

3. The online dissolved oxygen monitoring and valve opening adjustment device according to claim 2, characterized in that: The output end of the micro motor (601) extends into the interior of the anaerobic tank (1), the anoxic tank (2) and the aerobic tank (3), and the cleaning scraper (602) forms a rotational contact with the detection end of the dissolved oxygen sensor (5).

4. The online dissolved oxygen monitoring and valve opening adjustment device according to claim 2, characterized in that: The cleaning blade (602) is a flexible carbon fiber blade.

5. The online dissolved oxygen monitoring and valve opening adjustment device according to claim 1, characterized in that: The anaerobic tank (1) and the anoxic tank (2) are connected to each other by a pipe, and the anoxic tank (2) and the aerobic tank (3) are connected to each other by a pipe.

6. The online dissolved oxygen monitoring and valve opening adjustment device according to claim 1, characterized in that: The first connecting pipe (101) is connected to the end of the gas supply pipe (7), and the first connecting pipe (101) is located at the left end of the first electric butterfly valve (701). One end of the second connecting pipe (201) is connected to the middle of the outer side of the gas supply pipe (7), and the second connecting pipe (201) is located at the left end of the second electric butterfly valve (702). One end of the third connecting pipe (301) is connected to the right side of the outer side of the gas supply pipe (7), and the third connecting pipe (301) is located at the left end of the third electric butterfly valve (703). The right end of the gas supply pipe (7) is connected to the check valve (801).

7. The online dissolved oxygen monitoring and valve opening adjustment device according to claim 1, characterized in that: The dissolved oxygen sensor (5), blower (8), electric butterfly valve No. 1 (701), electric butterfly valve No. 2 (702) and electric butterfly valve No. 3 (703) are electrically connected to the PLC controller (4) via wires.

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