Pipe water quality monitoring and automatic control device based on color detection

Abstract

The application relates to a pipeline water quality monitoring and automatic control device based on color detection, relating to the technical field of water quality monitoring and pipeline control, which comprises a color detection device, a control module, a sewage discharge valve and a recycled water control valve. The color detection device is arranged on a sampling branch connected with a main pipeline, adopts a self-provided light source to detect the color index of water flowing through the sampling branch, and provides a water quality state signal for the control module. The sewage discharge valve is arranged on a pipeline between the main pipeline and a sewage discharge port. The recycled water control valve is arranged on a pipeline between the main pipeline and a recycled water outlet. The control module connects the sewage discharge valve or the recycled water control valve to be opened according to the water quality state signal provided by the color detection device. The device can eliminate the interference of ambient light, has high detection precision, can realize a double-threshold judgment mechanism, and is automatically controlled without needing personnel on duty.

Description

Technical Field

[0001] This utility model relates to the field of water quality monitoring and pipeline control technology, and in particular to a device that triggers alarms and valve switching by real-time detection of changes in the color of clear water, applicable to scenarios such as water supply systems and industrial circulating water systems. Background Technology

[0002] Existing technical solutions for pipeline water quality monitoring generally suffer from the following problems:

[0003] 1. Traditional methods rely on manual visual inspection and cannot monitor in real time;

[0004] 2. Some automatic detection devices only have alarm functions and lack valve linkage control;

[0005] 3. Color detection is easily affected by ambient light, resulting in a high false alarm rate;

[0006] 4. Slow response speed, making it difficult to stop water flow in time when pollution occurs. Utility Model Content

[0007] In summary, the purpose of this utility model is to address the aforementioned technical shortcomings of current pipeline water quality monitoring solutions, and to propose a pipeline water quality monitoring and automatic control device based on color detection.

[0008] The technical solution adopted to solve this problem is as follows:

[0009] A pipeline water quality monitoring and automatic control device based on color detection, characterized in that the device includes: a color detection device, a control module, a sewage discharge valve, and a recycled water control valve;

[0010] The color detection device is located on the sampling branch connected to the main pipeline. It uses its own light source to detect the color index of the water flowing through the sampling branch and provides water quality status signals to the control module.

[0011] The sewage discharge valve is located on the pipeline between the main pipeline and the sewage discharge outlet;

[0012] The reclaimed water control valve is located on the pipeline between the main pipeline and the reclaimed water outlet;

[0013] The control module connects and controls the opening of the sewage discharge valve or the recycled water control valve based on the water quality status signal provided by the color detection device.

[0014] The technical solutions that further define this utility model include:

[0015] The upstream sampling branch of the color detection device is also equipped with a water storage device, which contains colored water for testing the operating status of the color detection device. The water storage device is equipped with a test control valve to control the injection of colored water into the sampling branch.

[0016] The control module is also connected to an audible and visual alarm that triggers an alarm when the color detection device detects that the water color index is greater than a preset value.

[0017] The sampling branch is provided with a columnar collection cavity, and the color detection device is installed at the end of the columnar collection cavity. The columnar collection cavity has an inlet and an outlet on its two side walls in different directions.

[0018] The water outlet is a strip-shaped opening axially along the side wall of the columnar collection cavity, and a funnel-shaped water outlet connector is provided outside the strip-shaped opening.

[0019] The color detection device is mounted on the end of the columnar acquisition cavity via a flange structure.

[0020] A supplementary lighting device is installed at the other end of the columnar acquisition cavity opposite to the color detection device via a flange structure.

[0021] The control module is also connected to a central control system.

[0022] The sampling branch is also equipped with a water inlet valve.

[0023] The beneficial effects of this utility model are as follows: The color detection device of this utility model is installed on the sealed sampling branch connected to the main pipeline. It uses a self-contained light source to detect the color index of the water flowing through the sampling branch, eliminating ambient light interference and ensuring accurate detection. When the water color index exceeds the standard, it can instantly trigger an early warning. If the index continues to exceed the standard, it will close the recovery water control valve and open the sewage discharge valve to discharge the sewage. After the sewage is discharged, it can automatically restore the recovery water control valve to open and the sewage discharge valve to close. This utility model can realize a dual threshold judgment mechanism, fully automatic control, no need for personnel to be on duty, and alarm information can be directly uploaded to the central control system by the control module for storage and review. The color index value can also be uploaded to the central control system in real time for storage and review. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the main structure of the color detection device and sampling branch of this utility model in combination and connection state;

[0025] Figure 2 This is a right-side view of the structure of the color detection device and sampling branch of this utility model in combination and connected state;

[0026] Figure 3 This is a top view of the combined connection of the color detection device and the sampling branch of this utility model;

[0027] Figure 4 This is a schematic diagram of the color detection device of this utility model in its installation state.

[0028] Figure 5 This is a right-side view of the color detection device of this utility model in its installed state.

[0029] Figure 6 This is a top view of the color detection device of this utility model in its installation state.

[0030] Figure 7 This is a system structure block diagram during the implementation of this utility model. Detailed Implementation

[0031] The structure of this utility model will be further described below with reference to the accompanying drawings and preferred embodiments.

[0032] Reference Figures 1 to 7 As shown in the figure, the pipeline water quality monitoring and automatic control device based on color detection disclosed in this utility model includes: a color detection device 1, a control module, a sewage discharge valve 2, and a recycled water control valve 3.

[0033] The color detection device 1 is located on the sampling branch connected to the main pipeline. The color detection device 1 uses its own light source to detect the color index of the water flowing through the sampling branch, providing a water quality status signal to the control module.

[0034] The specific implementation of the color detection device 1 can be as follows: a columnar collection chamber 5 is provided on the sampling branch 4, and the color detection device 1 is installed at the end of the columnar collection chamber 5. An inlet 51 and an outlet 52 are provided on the two side walls of the columnar collection chamber 5 in different directions, thereby preventing stagnant water from appearing inside the columnar collection chamber 5. The outlet 52 is preferably a strip-shaped opening along the axial direction of the side wall of the columnar collection chamber 5, and a funnel-shaped water outlet connector 521 is provided outside the strip-shaped opening. The color detection device 1 is installed at one end of the columnar collection chamber 5 via a flange structure; a supplementary lighting device 6 is installed at the other end of the columnar collection chamber 5 opposite to the color detection device 1 via a flange structure. The positions of the supplementary lighting device 6 and the color detection device 1 can be interchanged in specific implementations. The purpose of setting the columnar collection chamber 5 in this invention is to enable the color detection device 1 to collect a relatively large amount of data during the collection of the water flow color index, thereby improving the accuracy of the data collection. After the collected water flows into the sampling branch 4 from the main pipe through the inlet of the sampling branch 4, it enters the columnar sampling chamber 5 through the inlet 51 on the side wall of the columnar sampling chamber 5. The color detection device 1 can continuously detect the water flow color index of a certain amount of water in the columnar sampling chamber 5, that is, to collect the RGB value of the water flow image. The water flow color index of clean water is relatively low compared to that of sewage. For example, the preset value of the water flow color index of clean water is 200. When the color detection device 1 detects that the water flow color index in the columnar sampling chamber 5 exceeds 200 for 2 consecutive seconds, it can be determined that the water in the main pipe is polluted. This utility model needs to immediately control the water flow in the main pipe for application.

[0035] To prevent wastewater from being used in applications and to ensure timely discharge of wastewater, the system automatically restores the supply of clean production water after wastewater discharge, preventing production equipment from shutting down due to water shortage. The main pipeline is connected to a wastewater discharge outlet and a recycled water outlet via three separate pipes. The wastewater discharge valve is located on the pipeline between the main pipeline and the wastewater discharge outlet. The recycled water control valve is located on the pipeline between the main pipeline and the recycled water outlet. The control module controls the opening of the wastewater discharge valve or the recycled water control valve based on the water quality status signal provided by the color detection device, thereby determining whether the water from the main pipeline is discharged into the discharge pool or the recycled water pool.

[0036] To prevent the color detection device 1 from malfunctioning due to prolonged use, this invention also includes a water storage device 7 on the upstream sampling branch of the color detection device. The water storage device 7 contains colored water used to test the operating status of the color detection device. A test control valve is installed on the water storage device to control the injection of colored water into the sampling branch. After the test control valve is opened, the colored water is injected into the sampling branch and immediately enters the columnar collection chamber 5. If the color detection device 1 does not respond, it indicates that the color detection device 1 may have malfunctioned and needs to be replaced or cleaned.

[0037] The control module is also connected to an audible and visual alarm that triggers an alarm when the color detection device detects that the water color index exceeds a preset value. The audible and visual alarm includes an LED warning light and a buzzer.

[0038] The control module acquires color signals in real time from the color detection device 1 via RS485 communication and processes the data in real time. The control module is connected to a power supply unit, which converts the input 220V AC power into 24V DC voltage to power the control module.

[0039] The control module is also connected to a central control system. Alarm information can be directly uploaded from the control module to the central control system for storage and future reference. Color index values ​​can also be uploaded to the central control system in real time for storage and future reference.

[0040] To facilitate maintenance of this utility model, a water inlet valve 8 is also provided on the sampling branch 4.

[0041] The working process of this utility model is as follows:

[0042] 1. Color detection device 1 continuously collects the RGB values ​​of the water flowing through sampling branch 4;

[0043] 2. The control module compares the water flow color index data currently detected by the color detection device 1 with the preset clean water quality value;

[0044] 3. If the water color index data exceeds the standard for 2 consecutive seconds (the time can be set), perform the following actions:

[0045] Trigger the audible and visual alarm (red light flashing + buzzer);

[0046] Open the sewage discharge valve and close the recycled water control valve to discharge the water from the main pipeline into the discharge pool;

[0047] The alarm information and time are recorded synchronously and uploaded to the central control system for storage and future reference.

[0048] 4. When the water color index data meets the standard for 10 consecutive seconds (the time can be set): Perform the following actions:

[0049] Eliminate the audible and visual alarm;

[0050] Open the recycling water control valve and close the sewage discharge valve to discharge the water from the main pipeline into the recycling water tank.

Claims

1. A pipeline water quality monitoring and automatic control device based on color detection, characterized in that... The device includes: a color detection device, a control module, a sewage discharge valve, and a recycled water control valve; The color detection device is located on the sampling branch connected to the main pipeline. It uses its own light source to detect the color index of the water flowing through the sampling branch and provides water quality status signals to the control module. The sewage discharge valve is located on the pipeline between the main pipeline and the sewage discharge outlet; The reclaimed water control valve is located on the pipeline between the main pipeline and the reclaimed water outlet; The control module connects and controls the opening of the sewage discharge valve or the recycled water control valve based on the water quality status signal provided by the color detection device.

2. The pipeline water quality monitoring and automatic control device based on color detection according to claim 1, characterized in that: The upstream sampling branch of the color detection device is also equipped with a water storage device, which contains colored water for testing the operating status of the color detection device. The water storage device is equipped with a test control valve to control the injection of colored water into the sampling branch.

3. The pipeline water quality monitoring and automatic control device based on color detection according to claim 1, characterized in that: The control module is also connected to an audible and visual alarm that triggers an alarm when the color detection device detects that the water color index is greater than a preset value.

4. The pipeline water quality monitoring and automatic control device based on color detection according to claim 1, characterized in that: The sampling branch is provided with a columnar collection cavity, and the color detection device is installed at the end of the columnar collection cavity. The columnar collection cavity has an inlet and an outlet on its two side walls in different directions.

5. The pipeline water quality monitoring and automatic control device based on color detection according to claim 4, characterized in that: The water outlet is a strip-shaped opening axially along the side wall of the columnar collection cavity, and a funnel-shaped water outlet connector is provided outside the strip-shaped opening.

6. The pipeline water quality monitoring and automatic control device based on color detection according to claim 4, characterized in that: The color detection device is mounted on the end of the columnar acquisition cavity via a flange structure.

7. The pipeline water quality monitoring and automatic control device based on color detection according to claim 6, characterized in that: A supplementary lighting device is installed at the other end of the columnar acquisition cavity opposite to the color detection device via a flange structure.

8. The pipeline water quality monitoring and automatic control device based on color detection according to claim 1, characterized in that: The control module is also connected to a central control system.

9. The pipeline water quality monitoring and automatic control device based on color detection according to claim 1, characterized in that: The sampling branch is also equipped with a water inlet valve.

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