Intelligent sewage discharge system

Abstract

The utility model discloses an intelligent sewage discharge system, and belongs to the field of sewage treatment. Comprising a primary monitoring pool provided with various water quality detection sensors, the input end of the primary monitoring pool is connected with the water outlet end of sewage treatment equipment through a pipeline, the output end of the primary monitoring pool is connected with the input end of an electromagnetic three-way valve through a pipeline, and a main controller is electrically connected with the water quality detection sensors, the control end of the electromagnetic three-way valve and the control end of a discharge pipe network electromagnetic valve; a first output end of the electromagnetic three-way valve is connected with an input end of a secondary buffer pool through a pipeline, and an output end of the secondary buffer pool is connected to an external discharge pipe network through an external discharge pipe network electromagnetic valve; a second output end of the electromagnetic three-way valve is connected with an input end of an emergency treatment tank through a pipeline, and an output end of the emergency treatment tank is connected to sewage treatment equipment through a pipeline. According to the utility model, the automatic sewage discharge control is realized, and the standard discharge of water quality is ensured.

Description

Technical Field

[0001] This utility model belongs to the field of wastewater treatment, specifically, it relates to an intelligent wastewater discharge system. Background Technology

[0002] Existing industrial wastewater discharge systems mostly use single-stage monitoring tanks, which leads to the continuous flow of wastewater into the pipe network due to the failure to intercept the outflow after exceeding the standards. At the same time, there is a lack of emergency response mechanisms, making it impossible to proactively deal with substandard wastewater.

[0003] Prior art document (CN119683826A) discloses a combined wastewater treatment method, including the following steps: Preliminary adsorption of wastewater by adding bentonite, zeolite, silica, and red mud to a physical adsorption sedimentation tank; discharge of the preliminarily treated wastewater from the physical adsorption sedimentation tank to a primary storage tank; and control of the discharge from the primary storage tank to the chemical sedimentation tank via a water level control valve. Copper ions, magnesium ions, and phosphates are removed by adding sodium hydroxide solution and a precipitant to different chemical sedimentation tanks. This invention regulates the flow rate of the wastewater from the sedimentation tank to the storage tank based on whether the pollution level of the discharged water exceeds the degradation capacity of the river water in the discharge area, thereby controlling the purification time of the wastewater in the sedimentation tank.

[0004] The aforementioned comparative documents focus on wastewater treatment, but do not cover wastewater testing or emergency treatment during the discharge process after treatment, and therefore cannot guarantee that the water quality meets discharge standards. Utility Model Content

[0005] This utility model aims to overcome the shortcomings of the existing technology and proposes an intelligent sewage discharge system to achieve the following objectives: realize automated sewage discharge control and ensure that water quality meets discharge standards.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an intelligent sewage discharge system, the system comprising: a primary monitoring tank, an electromagnetic three-way valve, a secondary buffer tank, an external discharge network electromagnetic valve, an emergency treatment tank, and a main controller, wherein:

[0007] The primary monitoring pool is equipped with various water quality detection sensors. Its input end is connected to the outlet end of the sewage treatment equipment through a pipeline, and its output end is connected to the input end of the electromagnetic three-way valve through a pipeline. The main controller is electrically connected to the control end of the water quality detection sensor, the control end of the electromagnetic three-way valve, and the control end of the external discharge network electromagnetic valve.

[0008] The first output end of the electromagnetic three-way valve is connected to the input end of the secondary buffer tank through a pipeline, and the output end of the secondary buffer tank is connected to the external drainage network through an external drainage network electromagnetic valve.

[0009] The second output end of the electromagnetic three-way valve is connected to the input end of the emergency treatment tank via a pipeline, and the output end of the emergency treatment tank is connected to the sewage treatment equipment via a pipeline.

[0010] Preferably, the system further includes a redundancy check controller, which is electrically connected to the main controller and is used to obtain water quality detection data from the water quality detection sensor through the main controller, determine whether the water quality is qualified, and then feed back the determination result to the main controller.

[0011] Preferably, the main controller is a PLC and the redundancy check controller is a DCS.

[0012] Preferably, a liquid level sensor is installed in the secondary buffer tank. The liquid level sensor is electrically connected to the main controller and is used to monitor the liquid level of the secondary buffer tank in real time and feed it back to the main controller. The main controller controls the opening degree of the solenoid valve of the outflow pipeline according to the real-time liquid level of the secondary buffer tank.

[0013] Preferably, the system further includes a memory connected to the main controller for storing real-time water quality monitoring data acquired by the main controller.

[0014] Preferably, the system further includes a wireless communication unit, which is connected to the main controller.

[0015] The technical advantages of this invention are as follows: The system in this embodiment achieves automated wastewater discharge control. Specifically, the linkage between the electromagnetic three-way valve and the external discharge pipeline valve ensures that even if one component fails, the other can still function, effectively reducing the risk of unqualified wastewater discharge. Simultaneously, unqualified wastewater accumulated in the emergency treatment tank can be returned to the factory's wastewater treatment equipment, achieving closed-loop control and ensuring that the water quality meets discharge standards. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of an intelligent sewage discharge system according to an embodiment of the present invention. Detailed Implementation

[0017] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. The purpose is to help those skilled in the art to have a more complete, accurate, and in-depth understanding of the inventive concept and technical solution of this utility model, and to facilitate its implementation. It should be noted that the terms "first," "second," etc., used in this application are only for the convenience of describing the technical solution and distinguishing different components, and are not intended to limit this application. To make the technical solution of this utility model clearer, it will be explained and illustrated through the following embodiments.

[0018] This embodiment provides an intelligent sewage discharge system, such as Figure 1 As shown, the system includes: a primary monitoring tank, a solenoid three-way valve, a secondary buffer tank, an external discharge network solenoid valve, an emergency treatment tank, and a main controller, wherein:

[0019] The primary monitoring pool is equipped with various water quality detection sensors. Its input end is connected to the outlet end of the sewage treatment equipment through a pipeline, and its output end is connected to the input end of the electromagnetic three-way valve through a pipeline. The main controller is electrically connected to the control end of the water quality detection sensor, the control end of the electromagnetic three-way valve, and the control end of the external discharge network electromagnetic valve.

[0020] The first output end of the electromagnetic three-way valve is connected to the input end of the secondary buffer tank through a pipeline, and the output end of the secondary buffer tank is connected to the external drainage network through an external drainage network electromagnetic valve.

[0021] The second output end of the electromagnetic three-way valve is connected to the input end of the emergency treatment tank via a pipeline, and the output end of the emergency treatment tank is connected to the sewage treatment equipment via a pipeline.

[0022] The working principle of this embodiment is as follows: The electromagnetic three-way valve is initially in a fully closed state, meaning that neither the first nor the second output terminal is open. After treatment by the wastewater treatment equipment, the wastewater enters the primary monitoring tank for accumulation. Water quality monitoring sensors in the primary monitoring tank sample the wastewater and detect its quality, sending the data to the main controller. The main controller determines whether the water quality is up to standard based on the detection data. If it determines that the water quality is up to standard, it sends a first control signal to the control terminals of the electromagnetic three-way valve and the external discharge network solenoid valve. This signal controls the first output terminal of the electromagnetic three-way valve to open and the second output terminal to close. Simultaneously, it controls the external discharge network solenoid valve to open. At this point, the wastewater in the primary monitoring tank enters the secondary buffer tank and is discharged into the external discharge network through the external discharge network solenoid valve. After the main controller determines that the test result is unqualified, it sends a second control signal to the control terminals of the solenoid three-way valve and the external discharge network solenoid valve. On the one hand, it controls the second output terminal of the solenoid three-way valve to be open and the first output terminal to be closed. On the other hand, it controls the external discharge network solenoid valve to be closed. At this time, the sewage in the primary monitoring tank enters the emergency treatment tank, accumulates in the emergency treatment tank, and can be returned to the sewage treatment equipment for secondary treatment.

[0023] Specifically, the multiple water quality sensors in this embodiment are used to detect multiple water quality parameters simultaneously, including COD (Chemical Oxygen Demand) detection sensors, ammonia nitrogen sensors, pH detection sensors, etc., or it can also be a combination of multiple of these sensors. The water quality sensors adopted in this embodiment can be KNF-500 / G multi-parameter water quality sensors. Through real-time monitoring, the multiple water quality detection sensors in this embodiment can capture data changes at the first moment when any sewage parameter becomes abnormal, greatly shortening the time from water quality deterioration to problem discovery, and avoiding the discharge of unqualified sewage due to a long detection cycle.

[0024] An electromagnetic three-way valve is a solenoid valve with three pipe ports, usually including an input end, an electromagnetic control end (usually a coil), and two output ends. When in use, the electromagnetic three-way valve has different output end states according to different signals at the control end, including fully closed; the first output end is blocked and the second output end is conductive; the second output end is blocked and the first output end is conductive.

[0025] The secondary buffer pool is used to buffer the sewage discharged from the primary monitoring pool, which can prevent the impact of a large amount of sewage directly discharged on the external drainage network. In a preferred embodiment of this application, a liquid level sensor is arranged in the secondary buffer pool. The liquid level sensor is electrically connected to the main controller and is used to monitor the liquid level of the secondary buffer pool in real time and feedback it to the main controller. The main controller controls the opening degree of the external drainage network solenoid valve according to the real-time liquid level of the secondary buffer pool. Specifically in implementation, the method of setting a liquid level threshold is usually adopted. When the real-time liquid level is greater than the liquid level threshold, the opening degree of the external drainage network solenoid valve is increased; when the real-time liquid level is less than the liquid level threshold, the opening degree of the external drainage network solenoid valve is decreased.

[0026] At the same time, when unqualified sewage flows into the secondary buffer pool due to reasons such as a malfunction of the electromagnetic three-way valve and the external drainage network solenoid valve is working properly, the unqualified sewage can accumulate in the secondary buffer pool, thus preventing the unqualified sewage from flowing out. The electromagnetic three-way valve and the external drainage network solenoid valve in this embodiment form a double control guarantee. The electromagnetic three-way valve changes the sewage flow direction, and the external drainage network solenoid valve directly cuts off the external drainage path. The two work together to ensure that even if one of the components fails, the other can still play a role, effectively reducing the risk of unqualified sewage being discharged.

[0027] In a preferred embodiment of this application, the solenoid valve for the external discharge network can also be a solenoid three-way valve. Its control terminal is electrically connected to the main controller, its input terminal is connected to the output terminal of the secondary buffer tank, its first output terminal is connected to the external discharge network, and its second output terminal is connected to the emergency treatment tank. When the water quality test is qualified, the first output terminal of the external discharge network solenoid valve is open, and the second output terminal is closed; when the water quality test is unqualified, the second output terminal of the external discharge network solenoid valve is open, and the first output terminal is closed, thereby discharging the sewage in the secondary buffer tank to the emergency treatment tank. In this way, if the solenoid three-way valve fails or causes unqualified sewage to flow into the secondary buffer tank, and the external discharge network solenoid valve is working normally, the unqualified sewage can flow from the secondary buffer tank to the emergency treatment tank for subsequent treatment.

[0028] The main controller is a data processing and control device, which can be a PLC (Programmable Logic Controller), DCS (Distributed Control System), etc. In this embodiment, the main controller is used to process the water quality detection data from the water quality monitoring sensor to determine whether the water quality is up to standard, and sends different control signals to the control terminals of the solenoid three-way valve and the external discharge pipeline solenoid valve according to the different judgment results. The main controller typically judges the water quality by setting corresponding thresholds for each water quality detection data and comparing them with real-time data.

[0029] In a preferred embodiment of the application, the system further includes a redundancy check controller electrically connected to the main controller. The redundancy check controller acquires water quality data from the water quality sensor through the main controller, determines whether the water quality is qualified, and then feeds back the determination result to the main controller. In other words, the redundancy check controller and the main controller perform dual verification of the water quality detection results. Only when the water quality detection results from the main controller and the redundancy check controller are consistent are control signals corresponding to the water quality detection results sent to the control terminals of the solenoid three-way valve and the external discharge network solenoid valve. The main controller can be a PLC, and the redundancy check controller can be a DCS. By complementing the advantages of different controllers, the system's judgment accuracy and reliability are improved, and the risk of misjudgment and malfunction is reduced.

[0030] In a preferred embodiment of the application, the system of this application further includes a memory connected to the main controller for storing real-time water quality monitoring data acquired by the main controller, thereby realizing the preservation of water quality monitoring data and facilitating the subsequent historical data acquisition needs of users.

[0031] In a preferred embodiment of the application, the system further includes a wireless communication unit connected to the main controller. The wireless communication unit utilizes communication technologies such as 4G and 5G to establish wireless communication with remote user devices (e.g., mobile phones), thereby sharing water quality detection data from the main controller with the user. It can also receive user commands to actively control devices in the system, such as valve control. Commonly used wireless communication units may employ the GRM200G module, which is widely used in wireless communication for controllers such as PLCs.

[0032] The system in this embodiment achieves automated wastewater discharge control. Once the main controller detects that the water quality exceeds the standard, it controls the electromagnetic three-way valve to quickly activate, switching the flow of wastewater to the emergency treatment tank. This allows the substandard wastewater to be accumulated and then treated secondary. Simultaneously, it automatically closes the external discharge pipe valve to achieve physical interception. This process requires no manual intervention, relying on automated control for rapid response. Compared to manual judgment and operation, this greatly improves the interception speed and effectively prevents the discharge of substandard wastewater.

[0033] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. An intelligent sewage discharge system, characterized in that: The system includes: a primary monitoring tank, a solenoid three-way valve, a secondary buffer tank, an external discharge pipeline solenoid valve, an emergency treatment tank, and a main controller, wherein: The primary monitoring pool is equipped with various water quality detection sensors. Its input end is connected to the outlet end of the sewage treatment equipment through a pipeline, and its output end is connected to the input end of the electromagnetic three-way valve through a pipeline. The main controller is electrically connected to the control end of the water quality detection sensor, the control end of the electromagnetic three-way valve, and the control end of the external discharge network electromagnetic valve. The first output end of the electromagnetic three-way valve is connected to the input end of the secondary buffer tank through a pipeline, and the output end of the secondary buffer tank is connected to the external drainage network through an external drainage network electromagnetic valve. The second output end of the electromagnetic three-way valve is connected to the input end of the emergency treatment tank via a pipeline, and the output end of the emergency treatment tank is connected to the sewage treatment equipment via a pipeline.

2. The intelligent sewage discharge system according to claim 1, characterized in that: The system also includes a redundancy check controller, which is electrically connected to the main controller. The redundancy check controller is used to obtain water quality detection data from the water quality detection sensor through the main controller, determine whether the water quality is qualified, and then feed back the determination result to the main controller.

3. The intelligent sewage discharge system according to claim 2, characterized in that: The main controller is a PLC, and the redundancy check controller is a DCS.

4. The intelligent sewage discharge system according to claim 1, characterized in that: The secondary buffer tank is equipped with a liquid level sensor, which is electrically connected to the main controller. The liquid level sensor is used to monitor the liquid level of the secondary buffer tank in real time and feed it back to the main controller. The main controller controls the opening degree of the solenoid valve of the external discharge pipeline according to the real-time liquid level of the secondary buffer tank.

5. The intelligent sewage discharge system according to claim 1, characterized in that: The system also includes a memory connected to the main controller for storing real-time water quality monitoring data acquired by the main controller.

6. The intelligent sewage discharge system according to claim 1, characterized in that: The system also includes a wireless communication unit, which is connected to the main controller.

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