Automatic water quality sampling system

Abstract

The utility model discloses an automatic water quality sampling system which comprises a sampling flow path, a sample supply flow path, a cleaning liquid supply flow path, a liquid discharge pipeline and a uniform mixing barrel, and the sampling flow path, the sample supply flow path, the cleaning liquid supply flow path and the liquid discharge pipeline are respectively connected with the uniform mixing barrel; an overflow pipe is arranged at the top of the uniform mixing barrel and is connected with a liquid discharge pipeline; a stirring device is mounted in the uniform mixing barrel. According to the utility model, the tap water interface is externally connected with high-pressure tap water, so that the sampling flow path and the sample supply flow path can be cleaned, water supplied to the analyzer is prevented from being polluted, and the device has the advantages of simple pipeline design and convenience in operation.

Description

TECHNICAL FIELD

[0001] The utility model relates to a water quality detection technology, especially relate to a water quality automatic sampling system. BACKGROUND

[0002] For the monitoring of pollutants in water, a water quality automatic sampling system is usually used in combination with an analyzer. The water sample tested by the analyzer is collected from the outlet by the water quality automatic sampling system into a mixing barrel, and is supplied to the analyzer through a water supply pipeline for testing and then returned to the mixing barrel to form a loop. However, the water sample collected by the water quality automatic sampling system may contain various pollutants, and long-term accumulation may cause pollutants to remain in the mixing barrel and the pipeline, affecting the authenticity of the analysis data. SUMMARY

[0003] To solve the above problems in the prior art, the purpose of the utility model is to provide a water quality automatic sampling system which can clean the pipeline and ensure that the water supplied to the analyzer is not contaminated.

[0004] The utility model solves the technical problems by adopting the following technical scheme: a water quality automatic sampling system, comprising a sampling flow path, a sample supply flow path, a cleaning liquid supply flow path, a liquid discharge pipeline and a mixing barrel, wherein the sampling flow path, the sample supply flow path, the cleaning liquid supply flow path and the liquid discharge pipeline are respectively connected with the mixing barrel;

[0005] The top of the mixing barrel is provided with an overflow pipe connected with the liquid discharge pipeline.

[0006] The mixing barrel is provided with a stirring device.

[0007] Optionally, the cleaning liquid supply flow path is provided with a tap water interface, a first manual ball valve and an electromagnetic valve, the tap water interface is connected with a tap water pipe, the first manual ball valve is connected with the tap water interface, the electromagnetic valve is connected with the first manual ball valve, and the mixing barrel is connected with the electromagnetic valve, so that the mixing barrel is connected with the cleaning liquid supply flow path.

[0008] Optionally, a float flowmeter is arranged in the pipeline between the first manual ball valve and the electromagnetic valve.

[0009] Optionally, the sampling flow path is provided with a sampling interface, a sampling pump and a first electric ball valve, the sampling interface is connected with a water sample during sampling, the sampling pump is connected with the sampling interface, the first electric ball valve is connected with the sampling pump, and the mixing barrel is connected with the first electric ball valve, so that the mixing barrel is connected with the sampling flow path.

[0010] Optionally, the sample supply flow path is provided with a sample supply outlet, a second manual ball valve, a sample supply pump, a second electric ball valve, a sample supply inlet and a third electric ball valve, one end of the sample supply outlet is connected with the second manual ball valve, the other end is connected with a water outlet pipeline of the water quality analyzer, the second manual ball valve is connected with the sample supply pump, the sample supply pump is connected with the second electric ball valve, and the second electric ball valve is connected with the mixing barrel.

[0011] One end of the sample supply inlet is connected with the water outlet pipeline of the water quality analyzer, so that the sample supply inlet is connected with the sample supply outlet, and the other end of the sample supply inlet is connected with the third electric ball valve, and the third electric ball valve is connected with the mixing barrel.

[0012] Optionally, the sample supply flow path and the sample supply flow path are jointly connected with a sample retention port.

[0013] By adopting the technical scheme, the sample flow path and the sample supply flow path can be cleaned by connecting high-pressure tap water to the tap water interface, so that the water quality supplied to the analyzer is not polluted, and the pipeline design is simple and the operation is convenient. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a system structure schematic diagram of the utility model. DETAILED DESCRIPTION

[0015] The application will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related utility model, and not to limit the utility model. In addition, it should be noted that only parts related to the utility model are shown in the drawings for convenience of description.

[0016] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and embodiments.

[0017] As shown in the drawings, Figure 1 The utility model discloses a water quality automatic sampling system, which comprises a sampling flow path, a sample supply flow path, a cleaning liquid supply flow path, a liquid discharge pipeline and a mixing barrel, and the sampling flow path, the sample supply flow path, the cleaning liquid supply flow path and the liquid discharge pipeline are connected with the mixing barrel respectively. In an embodiment of the utility model, the number of the mixing barrels can be two, and the two mixing barrels are respectively named as a first mixing barrel 10 and a second mixing barrel 11. By arranging the two mixing barrels, continuous and uninterrupted sample supply can be realized.

[0018] In the utility model, overflow pipe is equipped at the top of each mixing barrel, overflow pipe is connected with liquid discharge pipeline, the tail end of liquid discharge pipeline is equipped with liquid discharge port 25, wherein, first mixing barrel 10 is equipped with first overflow port 8, second mixing barrel 11 is equipped with second overflow port 9.In addition, waste liquid port is also equipped at the bottom of each mixing barrel, wherein, the waste liquid port of first mixing barrel 10 is connected with liquid discharge port 25 through fourth electric ball valve 23, the waste liquid port of second mixing barrel 11 is connected with liquid discharge port 25 through fifth electric ball valve 24.

[0019] In the utility model, stirring device is installed in mixing barrel, wherein, first stirring vane 6 is installed in first mixing barrel 10, second stirring vane 7 is installed in second mixing barrel 11.Stirring device is driven to rotate through additionally configured motor.After tap water enters into mixing barrel, the inner wall of mixing barrel is stirred and cleaned through stirring device, and then the sewage after cleaning is discharged through waste liquid port.

[0020] In the utility model, cleaning fluid supply flow path is equipped with tap water interface 1, first manual ball valve 2 and electromagnetic valve, tap water interface 1 is connected with tap water pipe, first manual ball valve 2 is connected with tap water interface 1, electromagnetic valve is connected with first manual ball valve 2, and mixing barrel is connected with electromagnetic valve, so that mixing barrel is connected with cleaning fluid supply flow path, wherein, in an embodiment of the utility model, electromagnetic valve includes first electromagnetic valve 4 and second electromagnetic valve 5, first electromagnetic valve 4 is connected with first mixing barrel 10, and second electromagnetic valve 5 is connected with second mixing barrel 11.In addition, float flowmeter 3 is arranged in the pipeline between first manual ball valve 2 and electromagnetic valve.

[0021] In the utility model, sampling flow path is equipped with sampling interface 12, sampling pump 13 and first electric ball valve 15, sampling interface 12 is connected with water sample during sampling, sampling pump 13 is connected with sampling interface 12, first electric ball valve 15 is connected with sampling pump 13, and first mixing barrel 10 and second mixing barrel 11 are connected with first electric ball valve 15 respectively, so that mixing barrel is connected with sampling flow path.In addition, sixth electric ball valve 14 is also connected between first electric ball valve 15 and sampling pump 13, and sixth electric ball valve 14 is connected with sample retention port 26 through pipeline.During cleaning sampling flow path, first mixing barrel 10 and second mixing barrel 11 are filled with tap water through cleaning fluid supply flow path, and then sampling pump 13 is reversed, so that the cleaning fluid in first mixing barrel 10 and second mixing barrel 11 flows out to the position of sampling interface 12, thereby completing the cleaning of sampling flow path.

[0022] In the utility model, the sample supply flow path is provided with a sample supply outlet 16, a second manual ball valve 17, a sample supply pump 19, a second electric ball valve 20, a sample supply inlet 22 and a third electric ball valve 21, one end of the sample supply outlet 16 is connected with the second manual ball valve 17, the other end is connected with the water outlet pipeline of the water quality analyzer, the second manual ball valve 17 is connected with the sample supply pump 19, the sample supply pump 19 is connected with the second electric ball valve 20, the first mixing barrel 10 and the second mixing barrel 11 are connected with the second electric ball valve 20 respectively.In addition, the seventh electric ball valve 18 is further connected between the second manual ball valve 17 and the sample supply pump 19, and the seventh electric ball valve 18 is connected with the sample retaining port 26 through the pipeline.The one end of the sample supply inlet 22 is connected with the water outlet pipeline of the water quality analyzer, so that the sample supply inlet 22 is connected with the sample supply outlet 16, and the other end of the sample supply inlet 22 is connected with the third electric ball valve 21, and the third electric ball valve 21 is connected with the first mixing barrel 10 and the second mixing barrel 11.When the sample supply flow path is cleaned, first, the first mixing barrel 10 and the second mixing barrel 11 are filled with tap water through the cleaning liquid supply flow path, then the sample supply pump 19 is rotated, the tap water in the first mixing barrel 10 and the second mixing barrel 11 enters the water outlet pipeline of the water quality analyzer through the sample supply outlet 16, then enters the water quality analyzer again, the tap water flows out of the water quality analyzer again, enters the water outlet pipeline, enters the sample supply inlet 22 through the water outlet pipeline, and finally enters the first mixing barrel 10 and the second mixing barrel 11 through the third electric ball valve 21 again, so that the cleaning of the sample supply flow path is completed.After the cleaning of the sample supply flow path is completed, the fourth electric ball valve 23 and the fifth electric ball valve 24 are started, and the cleaned sewage is discharged.

[0023] The above description is only the preferred embodiment of the application and the explanation of the applied technical principles. It should be understood by those skilled in the art that the utility model range involved in the application is not limited to the technical solutions formed by the specific combination of the above technical features, and should also cover other technical solutions formed by the combination of the above technical features or equivalent features without departing from the utility model concept. For example, the above features are replaced with the technical features disclosed in the application (but not limited to) having similar functions to form a technical solution.

[0024] In addition to the technical features described in the specification, the remaining technical features are known to those skilled in the art, and in order to highlight the innovative features of the utility model, the remaining technical features will not be described here.

Claims

1. An automatic water quality sampling system, characterized by, The sampling flow path, the sample supply flow path, the cleaning liquid supply flow path, the liquid discharge pipeline and the mixing barrel are connected with the mixing barrel respectively; The top of the mixing barrel is provided with an overflow pipe connected with the liquid discharge pipeline; The mixing barrel is provided with a stirring device.

2. The automatic water quality sampling system according to claim 1, characterized in that, The cleaning liquid supply flow path is provided with a water faucet, a first manual ball valve and an electromagnetic valve.

3. The automatic water quality sampling system according to claim 2, wherein A float flow meter is arranged in the pipeline between the first manual ball valve and the electromagnetic valve.

4. The automatic water quality sampling system of claim 1, wherein The sampling flow path is provided with a sampling interface, a sampling pump and a first electric ball valve.

5. The automatic water quality sampling system of claim 1, wherein The sampling interface is connected with water sample during sampling. The sampling pump is connected with the sampling interface.

6. The automatic water quality sampling system of claim 1, wherein The first electric ball valve is connected with the sampling pump. The mixing barrel is connected with the first electric ball valve, so that the mixing barrel is connected with the sampling flow path. The sample supply flow path is provided with a sample supply outlet, a second manual ball valve, a sample supply pump, a second electric ball valve, a sample supply inlet and a third electric ball valve. One end of the sample supply outlet is connected with the second manual ball valve, and the other end is connected with the water outlet pipeline of the water quality analyzer. The second manual ball valve is connected with the sample supply pump. The sample supply pump is connected with the second electric ball valve. The second electric ball valve is connected with the mixing barrel. One end of the sample supply inlet is connected with the water outlet pipeline of the water quality analyzer, so that the sample supply inlet is connected with the sample supply outlet. The other end of the sample supply inlet is connected with the third electric ball valve. The third electric ball valve is connected with the mixing barrel. The sampling flow path and the sample supply flow path are jointly connected with a sample retaining port.

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