Water quality on-line detection device
By designing an online water quality detection device with automatic water sample collection and sedimentation, and combining it with chemical detection methods, the problem of water quality detection equipment being interfered with by solid impurities was solved, achieving high-precision and high-reliability water quality detection.
Patent Information
- Application Number
- CN202423114790.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-17
AI Technical Summary
Existing water quality testing equipment is easily affected by solid impurities, leading to inaccurate test results, and lacks the function of removing impurities from water samples.
The device design includes a cabinet, water tank module, test cup module, and water quality testing components. It combines automatic water sample collection, sedimentation and settling, and chemical detection methods. It uses an ammonia nitrogen analyzer, a total phosphorus analyzer, a permanganate index analyzer, and a chemical oxygen demand analyzer for detection. Automation and real-time data upload are achieved through control and communication components.
It improves the accuracy and reliability of water quality testing results, ensuring the accuracy and timeliness of test data, while also enhancing the safety and environmental friendliness of the equipment.
Smart Images
Figure CN223624235U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water quality testing technology, specifically to an online water quality testing device. Background Technology
[0002] Water quality testing is the process of monitoring and measuring the types of pollutants in water bodies, the concentrations of various pollutants, and their changing trends to evaluate water quality. The scope of testing is very broad, including unpolluted and polluted natural water (rivers, lakes, seas, and groundwater) as well as various types of industrial wastewater.
[0003] Current water quality testing equipment generally relies on electrode technology, such as water quality detection probes, to analyze water samples. However, this method is susceptible to interference from solid impurities during the testing process, thus affecting the accuracy of the results. Furthermore, existing water quality testing equipment lacks the function of removing impurities from the collected water samples, allowing impurity particles to enter the test cup module along with the water sample. These impurity particles easily adhere to the surface of the water quality sensor, thereby interfering with the probe's detection performance. Therefore, there is an urgent need for an online water quality monitoring device with higher detection accuracy. Utility Model Content
[0004] The problem to be solved is to provide an online water quality monitoring device with higher detection accuracy.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an online water quality monitoring device, comprising a cabinet, a display component on the side of the cabinet, and a control and communication component in the upper part of the cabinet. The control and communication component is connected to a water quality monitoring component and a water tank module. The water tank module includes a main water tank and a filter. The main water tank has an inlet valve and an overflow pipe at the top and a drain valve at the bottom. The filter is connected to the water quality monitoring component through a test cup module. The water tank module and the test cup module are located in the lower part of the cabinet. The water quality monitoring component includes an ammonia nitrogen analyzer, a total phosphorus analyzer, a permanganate index analyzer, a chemical oxygen demand analyzer, and a dissolved oxygen meter.
[0006] Preferably, the control communication components include an energy meter, a power surge protector, an air switch, a modular relay, a solid-state relay, a PLC module, a power module, a 4G module, a socket module, a terminal block, an instrument 485 adapter module, and a signal shielding module, with multiple solid-state relays.
[0007] Preferably, the test cup module includes a test cup, which is connected to a filter via a peristaltic pump. A drain valve is provided at the bottom of the test cup. The ammonia nitrogen analyzer, total phosphorus analyzer, permanganate index analyzer, and chemical oxygen demand analyzer are all connected to the inside of the test cup.
[0008] Preferably, the display component includes a baffle and an LCD screen, the LCD screen is fixed to the baffle, and the LCD screen is connected to the PLC module.
[0009] Preferably, a security camera assembly is provided on the top of the cabinet. The security camera assembly includes a camera mounting pole and a security camera, which is fixed on the camera mounting pole.
[0010] Preferably, the bottom of the cabinet is also equipped with a waste liquid recovery device, an air compressor and an air conditioning module, and the waste liquid recovery device is connected to a water quality testing component.
[0011] The beneficial effects of this utility model are as follows:
[0012] 1. The device has an automatic water sample collection function. By controlling the settings of the communication components, the detection process is automated. At the same time, the data is directly reported to the Internet of Things platform, which improves the timeliness of the detection results, increases the reliability of the data, and ensures the accuracy of the detection results.
[0013] 2. The water tank module allows the water sample inside the tank to settle and remain still, thus avoiding the influence of suspended particles in the water sample on the test results and effectively improving the accuracy of water quality testing; the filter filters the settled water sample, reducing solid suspended particles and other residues in the water sample, thereby improving the detection accuracy of the water quality testing device.
[0014] 3. This device uses chemical detection methods instead of sensor probes to detect water samples, thereby further improving the detection accuracy of water samples;
[0015] 4. This device enables real-time monitoring of the equipment itself through the installation of security cameras, thereby improving the equipment's security. Attached Figure Description
[0016] Figure 1 This is a front view of the internal structure of the device of this utility model;
[0017] Figure 2 This is a schematic diagram of the internal rear side of the device of this utility model;
[0018] Figure 3 This is a front view of the device of this utility model;
[0019] Figure 4 This is a schematic diagram illustrating the working principle of the device of this utility model;
[0020] Explanation of reference numerals in the attached diagram: 1. Cabinet; 11. Chassis stand; 12. Waste liquid recovery device; 13. Air compressor; 14. Air conditioning module; 2. Water tank module; 21. Main water tank; 22. Inlet valve; 23. Overflow pipe; 24. Filter; 25. Drain valve one; 3. Test cup module; 31. Test cup; 32. Peristaltic pump; 33. Drain valve two; 4. Water quality testing components; 41. Ammonia nitrogen analyzer; 42. Total phosphorus analyzer; 43. Permanganate index analyzer; 44. Chemical oxygen demand analyzer; 45. Dissolved... 5. Oxygen dissipation instrument; 5. Control and communication components; 51. Energy meter; 52. Power surge protector; 53. Air switch; 54. Modular relay; 55. Solid-state relay; 56. PLC module; 57. Power module; 58. 4G module; 59. Socket module; 510. Terminal block; 511. Instrument 485 adapter module; 512. Signal shielding module; 6. Display components; 61. Baffle; 62. LCD screen; 7. Security camera components; 71. Camera mounting pole; 72. Security camera. Detailed Implementation
[0021] The technical solutions of the present utility model will now be described with reference to the accompanying drawings in the embodiments of the present utility model:
[0022] To address the problems mentioned in the background art, this utility model proposes an online water quality testing device with automatic water sample collection function, aiming to achieve efficient and automated water quality testing. The device includes a cabinet 1, with a display component 6 on the side of the cabinet 1 to display the operating status and test results in real time; a control and communication component 5 is installed in the upper part of the cabinet 1, which automates the testing process and enables timely data upload. The control and communication component 5 is connected to the water quality detection component 4 and the water tank module 2 respectively. The water tank module 2 includes a filter 24, which is connected to the water quality detection component 4 through the test cup module 3. The water tank module 2 and the test cup module 3 are located in the lower part of the cabinet 1. The water tank module 2 and the test cup module 3 are responsible for the static sedimentation, filtration and purification and transportation of water samples. The water quality detection component 4 includes an ammonia nitrogen analyzer 41, a total phosphorus analyzer 42, a permanganate index analyzer 43, a chemical oxygen demand analyzer 44 and a dissolved oxygen meter 45. Among them, the ammonia nitrogen analyzer 41, the total phosphorus analyzer 42, the permanganate index analyzer 43, and the chemical oxygen demand analyzer 44 adopt the chemical reagent detection method, which can improve the detection accuracy. The bottom of cabinet 1 is equipped with a waste liquid recovery device 12, an air compressor 13, and an air conditioning module 14. The waste liquid recovery device 12 is connected to the water quality testing component 4. The waste liquid recovery device 12 reduces environmental impact, reflecting a dual consideration of environmental protection and operational convenience. The air compressor 13 keeps the water supply pipes clean. Its installation allows for flushing and drying of the water supply pipes after sampling, preventing residual liquid from causing secondary impacts on subsequent tests. The air conditioning module 14 regulates the temperature inside cabinet 1, ensuring stable operation of the device and guaranteeing stable operation of the equipment within cabinet 1 in a suitable environment. Through precise temperature management, the air conditioning module 14 not only ensures the accuracy of the test data but also improves the reliability and efficiency of the entire testing device. The top of cabinet 1 is equipped with a security camera component 7, which includes a camera mounting pole 71 and a security camera 72. The security camera 72 is fixed to the camera mounting pole 71. The security camera component 7 can record images of the surrounding environment of the equipment, improving the security of the equipment itself.
[0023] The water tank module 2 includes a main water tank 21 and multiple auxiliary valves and connecting pipes. An inlet valve 22 is installed in the upper left corner of the main water tank 21. This inlet valve 22 is connected to the outlet of a remote submersible pump via a water inlet pipe to introduce water samples into the main water tank 21. The power supply terminal of the inlet valve 22 is connected to a corresponding solid-state relay 55 for remote control. An overflow pipe 23 is located in the upper right corner of the main water tank 21 to maintain the water level and prevent water sample overflow. A filter 24 is installed in the lower right corner of the main water tank 21 to ensure that the water sample is properly filtered before entering the testing stage. The filtered water sample is delivered to the inlet pipe of the test cup module 3 via a connected peristaltic pump. A drain valve 25 is installed at the bottom of the main water tank 21, and its power supply terminal is also connected to a corresponding solid-state relay 55 to drain the water sample from the main water tank 21 when necessary. In addition, a T-junction is installed before the inlet valve 22, connecting the inlet pipe, the air compressor exhaust pipe, and the inlet valve 22. This design ensures smooth water sample collection and facilitates air expulsion, guaranteeing the efficiency and accuracy of the water sample collection process. Through the water tank module 2, this online water quality monitoring device allows the water sample to settle and stand, effectively removing solid impurities from the water sample and reducing their interference with the test results. This process significantly improves the accuracy of water quality testing, ensures the reliability of the test data, and provides users with more accurate water quality analysis results.
[0024] The test cup module 3 has a water inlet pipe fixed to the upper left corner of the test cup 31. The other end of the water inlet pipe is directly connected to the peristaltic pump 32, ensuring that the filtered water sample can flow smoothly into the test cup 31. A drain valve 33 is located at the bottom of the test cup 31. This drain valve 33 is controlled by a corresponding solid-state relay 55, facilitating the drainage of water sample from the test cup after testing or when cleaning is required. An overflow pipe is also specially designed at the upper right corner of the test cup to prevent water sample overflow. The entire test cup module 3 is connected to the water tank module 2 via the peristaltic pump 32, forming a closed water sample transfer system, enabling efficient and accurate flow of water sample during collection, filtration, and delivery to the test cup 31.
[0025] The water quality testing component 4 includes an ammonia nitrogen analyzer 41, a total phosphorus analyzer 42, a permanganate index analyzer 43, and a chemical oxygen demand (COD) analyzer 44. Each analyzer's inlet and outlet are cleverly designed with fixed sampling tubes, reagent tubes, and waste liquid tubes. The sampling tube is directly connected to the test cup 31, ensuring smooth delivery of the water sample to the corresponding analyzer. The reagent tube is connected to the corresponding reagent bottle, providing the necessary chemical reagents for the testing process. The waste liquid tube guides the waste liquid generated after testing to the waste liquid recovery device 12 for environmentally friendly treatment. Furthermore, the inlet, outlet, and waste liquid tubes all penetrate and extend into the chemical reaction tank. This design not only optimizes the spatial layout but also improves the efficiency and safety of the entire testing system. This device uses a chemical reagent method to accurately measure key indicators such as ammonia nitrogen, total phosphorus, permanganate index, and COD in water samples. This method directly indicates the relative content of reducing substances and organic matter in the water, which is of great significance for judging water quality. The water quality testing component 4 further improves the accuracy of test results, providing reliable data support for water quality management and environmental protection.
[0026] The control and communication component 5 includes an energy meter 51, a surge protector 52, an air switch 53, a modular relay 54, a solid-state relay 55, a PLC module 56, a power module 57, a 4G module 58, a socket module 59, a terminal block 510, an instrument 485 adapter module 511, and a signal shielding module 512. Multiple solid-state relays 55 are included. The PLC module 56 is connected to the terminal block 510 to achieve efficient control of the solid-state relays 55. The solid-state relays 55 are responsible for controlling the start and stop status of key equipment such as the inlet valve 22, drain valve 1 25, drain valve 2 33, peristaltic pump 32, and air compressor 13, ensuring the automated execution of the entire testing process. Through the connection between the 4G module 58 and the terminal block 510, the terminal block 510 is then connected to the water quality testing component 4, enabling real-time acquisition of the testing results from the water quality testing component 4. The results are then synchronously reported via communication through the IoT platform, achieving real-time monitoring and management of information. The mains power supply line first connects to the energy meter 51, and its output terminal connects to the main air switch 53. The output terminal of the air switch 53 then connects to the surge protector 52. The main air switch 53 is located to the right of the energy meter 51, and the surge protector 52 is located to the right of the main air switch 53. The input of the solid-state relay 55 is connected to the module relay 54, and the output terminal of the solid-state relay 55 is connected to the specific devices to be controlled. A PLC module 56 is located to the right of the solid-state relay 55, and a power module 57 is located to the right of the PLC module 56. The power module 57 supplies power to the control circuit. A 4G module 58 is located directly below the energy meter 51. A socket module 59 is located to the right of the 4G module 58, a terminal block 510 is located to the right of the socket module 59, and a 485 converter module 511 is located to the right of the terminal block 510. A signal shielding module 512 is located on the 485 converter module 511. The output of power module 57 is connected to the low-voltage section of terminal block 510. The power input and communication serial port of PLC module 56 are also connected to the low-voltage and signal sections of terminal block 510. The power input of module relay 54 is also connected to the low-voltage section of terminal block 510, and its output is connected to each solid-state relay 55. Each solid-state relay 55 is fixedly connected to an electrical module in water tank module 2. The power input and signal serial port of 4G module 58 are connected to the low-voltage and signal sections of terminal block 510, respectively. The power input and signal serial ports of instrument 485 adapter module 511 and signal shielding module 512 are also connected to the low-voltage and signal sections of terminal block 510. The signal section of terminal block 510 is further connected to the signal serial ports of dissolved oxygen meter 45, ammonia nitrogen analyzer 41, total phosphorus analyzer 42, permanganate index analyzer 43, and chemical oxygen demand analyzer 44. The power input terminal of the security camera 72 is connected to the high-voltage section of the terminal block 510. The communication serial port is directly connected to the security camera 72 at the top of the cabinet 1, and the network serial port is connected to the LAN port of the 4G module 58 to realize the transmission and storage of video data.This design ensures the stability and reliability of the power supply, signal transmission, and data processing of the entire online water quality monitoring device.
[0027] Display component 6 includes a baffle 61 and an LCD screen 62. The LCD screen 62 is fixed to the baffle 61 and connected to the PLC module 56. Screw holes are provided on the inner walls at both ends of the cabinet 1. The LCD screen 62 is embedded in the baffle 61, which is fixed to the upper layer of the cabinet 1 with screws, for displaying test data. The LCD screen 62 is connected to the PLC module 56 in the control and communication component 5 inside the upper layer of the cabinet 1 via a network cable to achieve data communication. This design allows the equipment status and test data to be transmitted to the LCD screen 62 in real time and clearly displayed on the screen, facilitating users to intuitively view and monitor the operation of the water quality testing device.
[0028] When using, such as Figure 4 As shown, A represents the blowing direction of the air compressor 13, and B represents the water supply direction. The submersible pump at the far end delivers the water sample to the water tank module 2. After sedimentation in the main water tank 21 and filtration by the filter 24, the water sample enters the test cup module 3. The water sample in the test cup 31 is then sent to the ammonia nitrogen analyzer 41, the total phosphorus analyzer 42, the permanganate index analyzer 43, and the chemical oxygen demand analyzer 44 for testing after passing through the dissolved oxygen meter 45. The test results are displayed on the LCD screen 62 and synchronized to the software platform via the control communication component 5. After the test is completed, the waste liquid in the ammonia nitrogen analyzer 41, the total phosphorus analyzer 42, the permanganate index analyzer 43, and the chemical oxygen demand analyzer 44 is discharged into the waste liquid recovery device 12. The air compressor 13 blows the pipeline. The remaining liquid in the main water tank 21 and the test cup 31 is discharged into the drain pipe through the drain valve 1 25 and the drain valve 2 33. This utility model device achieves automatic water sample collection and testing through the mutual coordination between the control communication component 5, water tank module 2, test cup module 3, and water quality detection component 4. At the same time, it directly reports the data to the Internet of Things platform, which improves the timeliness of the test results, increases the reliability of the data, and further ensures the accuracy of the test results.
[0029] The above embodiments are merely some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.
Claims
1. A water quality online monitoring device, characterized in that: The system includes a cabinet (1), a display component (6) on the side of the cabinet (1), a control and communication component (5) in the upper part of the cabinet (1), the control and communication component (5) being connected to the water quality detection component (4) and the water tank module (2), the water tank module (2) including the main water tank (21) and the filter (24), the main water tank (21) having an inlet valve (22) and an overflow pipe (23) at the top, and a drain valve (25) at the bottom; the filter (24) is connected to the water quality detection component (4) through the test cup module (3), the water tank module (2) and the test cup module (3) being located in the lower part of the cabinet (1), the water quality detection component (4) including an ammonia nitrogen analyzer (41), a total phosphorus analyzer (42), a permanganate index analyzer (43), a chemical oxygen demand analyzer (44) and a dissolved oxygen meter (45).
2. The online water quality monitoring device as described in claim 1, characterized in that: The control communication component (5) includes an energy meter (51), a power surge protector (52), an air switch (53), a modular relay (54), a solid-state relay (55), a PLC module (56), a power module (57), a 4G module (58), a socket module (59), a terminal block (510), an instrument 485 adapter module (511), and a signal shielding module (512). Multiple solid-state relays (55) are provided.
3. The online water quality monitoring device as described in claim 2, characterized in that: The test cup module (3) includes a test cup (31), which is connected to a filter (24) via a peristaltic pump (32). A drain valve (33) is provided at the bottom of the test cup (31). The ammonia nitrogen analyzer (41), total phosphorus analyzer (42), permanganate index analyzer (43) and chemical oxygen demand analyzer (44) are all connected to the inside of the test cup (31).
4. The online water quality monitoring device as described in claim 3, characterized in that: The display component (6) includes a baffle (61) and a liquid crystal display screen (62). The liquid crystal display screen (62) is fixed to the baffle (61) and is connected to the PLC module (56).
5. The online water quality monitoring device as described in claim 1, characterized in that: The top of the cabinet (1) is equipped with a security camera assembly (7), which includes a camera mounting pole (71) and a security camera (72). The security camera (72) is fixed on the camera mounting pole (71).
6. The online water quality monitoring device as described in claim 5, characterized in that: The bottom of the cabinet (1) is also equipped with a waste liquid recovery device (12), an air compressor (13) and an air conditioning module (14), and the waste liquid recovery device (12) is connected to the water quality detection component (4).