An automatic sampling and flushing device

Abstract

The utility model provides a kind of automatic sampling and flushing device, including main pipeline, sampling pipeline and clean water pipeline, the one end of main pipeline is connected with the one end of sampling pipeline and clean water pipeline respectively, the other end of main pipeline is connected with the detection equipment for detecting water quality, first solenoid valve is equipped on the sampling pipeline, second solenoid valve and water pump for pumping clean water into main pipeline are sequentially equipped on the clean water pipeline, filter for filtering impurities in water sample is equipped on the main pipeline.The utility model can prevent the pipeline of conveying water sample and the equipment of detecting water sample from being blocked, reduce the possibility of equipment damage, ensure the detection effect, and also can reduce the possibility of troubleshooting work of staff, reduce the working intensity of staff.

Description

Technical Field

[0001] This utility model relates to the field of water quality sampling, analysis and testing technology, specifically to an automatic sampling and rinsing device. Background Technology

[0002] Sampling pipelines are crucial in automated water quality analysis and testing in industrial settings. They allow for real-time sample collection and transmission from production lines or equipment, enabling online monitoring devices to track sample conditions and providing operators with insights into the production process or equipment status. This is essential for ensuring product quality and stability. Sample analysis allows for the timely detection of potential problems and the implementation of appropriate measures, preventing the production of defective products. However, some samples have high concentrations and are prone to crystallization, which can easily cause pipeline blockages, leading to equipment damage, inaccurate data, and other issues. Furthermore, when problems arise, on-site operators must analyze whether the fault lies with the equipment itself or the sampling method to troubleshoot, increasing their workload. Utility Model Content

[0003] To address the problems in the background art, an automatic sampling and rinsing device is provided, comprising a main pipeline, a sampling pipeline, and a clean water pipeline. One end of the main pipeline is connected to one end of both the sampling pipeline and the clean water pipeline, and the other end of the main pipeline is connected to a testing device for detecting water quality. A first solenoid valve is provided on the sampling pipeline, and a second solenoid valve and a water pump for pumping clean water into the main pipeline are sequentially provided on the clean water pipeline. A filter for filtering impurities in the water sample is provided on the main pipeline.

[0004] Preferably, there are two filters, which are arranged sequentially along the length of the main pipeline.

[0005] Preferably, the two filtration devices are a backwash pre-filter and a Y-type filter, with the backwash pre-filter located on the side of the Y-type filter closer to the sampling pipe.

[0006] Preferably, a sample return pipe is connected to the main pipe between the sampling port and the filter. One end of the sample return pipe is connected to the main pipe near the detection equipment, and the other end of the sample return pipe is connected to the water sample.

[0007] Preferably, it also includes a PLC controller, which is electrically connected to the first solenoid valve, the second solenoid valve and the water pump respectively.

[0008] Preferably, the end of the main pipeline away from the sampling pipeline is the sampling port, and the sampling port is connected to the detection equipment.

[0009] The beneficial effects of this utility model are as follows:

[0010] This invention features a filter to remove impurities from water samples, preventing blockages in the testing equipment or the main pipeline. Simultaneously, it includes a clean water pipeline to pump clean water into the main pipeline and testing equipment, flushing them and preventing crystallization or adhesion of the water sample, which could cause blockages. This invention prevents blockages in the water sample delivery and testing equipment, reducing the possibility of equipment damage, ensuring testing effectiveness, and consequently reducing the need for troubleshooting and the workload of staff. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0012] The following are labeled in the diagram: 1. Water pump; 2. First solenoid valve; 3. Second solenoid valve; 4. Sampling pipeline; 5. Main pipeline; 6. Clean water pipeline; 7. Backwash pre-filter; 8. Y-type filter; 9. Sampling port; 10. Testing equipment; 11. Sample return pipeline; 12. PLC controller. Detailed Implementation

[0013] To make this utility model clearer and more understandable, the technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the given embodiments are only one of the implementation methods and do not represent all embodiments.

[0014] In this article, terms such as "inner" and "outer" are established based on the positional relationships shown in the attached drawings. Depending on the attached drawings, the corresponding positional relationships may also change. Therefore, they should not be interpreted as an absolute limitation on the scope of protection.

[0015] Combined with appendix Figure 1 An automatic sampling and rinsing device includes a main pipe 5, a sampling pipe 4, and a clean water pipe 6. One end of the main pipe 5 is connected to one end of both the sampling pipe 4 and the clean water pipe 6. The other end of the main pipe 5 is a sampling port 9, which is connected to a testing device 10 for detecting water quality. A first solenoid valve 2 is installed on the sampling pipe 4. A second solenoid valve 3 and a water pump 1 for pumping clean water into the main pipe 5 are sequentially installed on the clean water pipe 6. The end of the clean water pipe 6 away from the main pipe 5 is connected to clean water for receiving clean water, and the end of the sampling pipe 4 away from the main pipe 5 is connected to a water sample for receiving the water sample. A filter for filtering impurities in the water sample is installed on the main pipe 5. The device also includes a PLC controller 12, which is electrically connected to the first solenoid valve 2, the second solenoid valve 3, and the water pump 1. The PLC controller 12 coordinates and controls the operation of the water pump 1 and the two solenoid valves.

[0016] The detection equipment 11 is selected according to actual detection needs. For example, online sulfate detection equipment or online free alkali detection equipment can be selected. Conventional equipment can be used for online detection equipment 11, which will not be described in detail here.

[0017] Specifically, there are two filters, arranged sequentially along the length of the main pipe 5. More specifically, the two filtration devices are a backwash pre-filter 7 and a Y-type filter 8, with the backwash pre-filter 7 located on the side of the Y-type filter 8 closest to the sampling pipe 4. The two filters enable secondary filtration of the water sample, effectively removing impurities. The backwash pre-filter 7 performs primary filtration, removing large particles and has a backwash function, allowing for self-cleaning of the filter element and eliminating the need for frequent replacement. The Y-type filter 8 performs secondary filtration.

[0018] Specifically, a sample return pipe 11 is connected to the main pipe 5 between the sampling port 9 and the filter. One end of the sample return pipe 11 is connected to the main pipe 5 near the detection device 10, and the other end is connected to the water sample. The sample return pipe 11 connects the water sample and the main pipe 5, allowing the water sample to return from the sample return pipe 11 to the production line or equipment that provided the water sample. This allows the water sample to flow naturally in the main pipe 5 during the sampling process, eliminating the need for additional equipment to control the amount of water sample obtained and achieving automatic sample circulation.

[0019] Workflow: During sampling and testing, the PLC controller 12 controls the first solenoid valve 2 to open and the second solenoid valve 3 to close. The water sample flows from the sampling pipe 4 into the main pipe 5 and then flows through the first solenoid valve 2 and two filters in sequence. The filters filter out impurities in the water sample. The filtered water sample flows through the sampling port 9 and then through the sample return pipe 11 back to the water sample acquisition point. The testing equipment 10 acquires the water sample flowing through the sampling port 9 for water quality testing.

[0020] During cleaning, the PLC controller 12 controls the first solenoid valve 2 to close and the second solenoid valve 3 to open, and starts the water pump 1. The water pump 1 draws clean water into the clean water pipe 6 and pumps it into the main pipe 5 to clean the main pipe 5. The clean water flows through the sampling port 9 and then through the sample return pipe 11 into the water sample acquisition point. The detection device 10 acquires the clean water flowing through the sampling port 9 for self-cleaning.

[0021] Although embodiments of the present invention have been shown and described, those skilled in the art will be able to make various changes, modifications, substitutions and alterations 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 automatic sampling and rinsing device, characterized in that: It includes a main pipe (5), a sampling pipe (4) and a clean water pipe (6). One end of the main pipe (5) is connected to one end of the sampling pipe (4) and the clean water pipe (6) respectively. The other end of the main pipe (5) is connected to a testing device (10) for testing water quality. The sampling pipe (4) is equipped with a first solenoid valve (2). The clean water pipe (6) is equipped with a second solenoid valve (3) and a water pump (1) for pumping clean water into the main pipe (5) in sequence. The main pipe (5) is equipped with a filter for filtering impurities in the water sample.

2. The automatic sampling and rinsing device according to claim 1, characterized in that: There are two filters, which are arranged sequentially along the length of the main pipe (5).

3. The automatic sampling and rinsing device according to claim 2, characterized in that: The two filter devices are a backwash pre-filter (7) and a Y-type filter (8), with the backwash pre-filter (7) located on the side of the Y-type filter (8) close to the sampling pipe (4).

4. The automatic sampling and rinsing device according to claim 1, characterized in that: A sample return pipe (11) is connected to the main pipe (5) between the sampling port (9) and the filter. One end of the sample return pipe (11) is connected to the main pipe (5) near the detection device (10), and the other end of the sample return pipe (11) is connected to the water sample.

5. The automatic sampling and rinsing device according to claim 1, characterized in that: It also includes a PLC controller (12), which is electrically connected to the first solenoid valve (2), the second solenoid valve (3) and the water pump (1).

6. The automatic sampling and rinsing device according to claim 1, characterized in that: The end of the main pipeline (5) away from the sampling pipeline (4) is the sampling port (9), and the sampling port (9) is connected to the detection equipment (10).

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