Full-process automatic sampling device

Abstract

The utility model relates to a kind of full-process automatic sampling device, including support, sampling box, sample tube, sampling tube and sampling pump, the sampling box is installed on support, the sample tube front end is connected with sampling point delivery water pump, the sample tube rear end is inserted into sampling box, membrane filter is set in the sampling box, the outlet end of the membrane filter is connected sampling tube, the sampling tube is stretched out of sampling box and is connected with the sampling pump import on support, sampling valve is installed on the sampling tube, the sampling pump outlet is connected by pipeline on-line water quality analyzer.The device can automatically continuously interval sampling and preliminary processing to water sample and deliver to on-line water quality analyzer, so as to realize full-process water quality analysis.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a fully automated sampling device. Background Technology

[0002] In the operation of wastewater treatment plants, full-process experiments are an important technical means to systematically monitor the influent and effluent of each process unit in wastewater treatment in order to evaluate the treatment effect and optimize operating parameters.

[0003] Currently, the entire process experiment involves manual sampling at designated sampling points. After sampling, the wastewater or mixed liquor is separated into mud and water before water quality analysis is performed to obtain the data. This approach wastes human resources, frequently results in erroneous experimental data, and due to the long sampling and experimental cycle, it is often impossible to obtain continuous water quality analysis data in a short period, causing delays in process control. Utility Model Content

[0004] The purpose of this invention is to provide a fully automated sampling device that can automatically perform continuous interval sampling and preliminary processing of water samples and deliver them to an online water quality analyzer, thereby realizing full-process water quality analysis.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a fully automated sampling device, comprising a support, a sampling box, an inlet tube, a sampling pipe, and a sampling pump. The sampling box is mounted on the support. The front end of the inlet tube is connected to a water pump delivering the sampling point. The rear end of the inlet tube extends into the sampling box. A membrane filter is installed inside the sampling box. The outlet end of the membrane filter is connected to the sampling pipe. The sampling pipe extends outward from the sampling box and is connected to the inlet of the sampling pump on the support. A sampling valve is installed on the sampling pipe. The outlet of the sampling pump is connected to an online water quality analyzer via a pipeline.

[0006] Furthermore, multiple sampling boxes are arranged side by side on the support, and are equipped with a corresponding number of inlet tubes, sampling tubes and membrane filters. The inlet tube of each sampling box is connected to a water pump for different sampling points. Sampling valves are installed on the sampling tubes of the multiple sampling boxes respectively, and the sampling tubes downstream of the sampling valves are connected in parallel to the sampling pump.

[0007] Furthermore, the sample inlet tube enters the sampling box from the upper side and extends into the bottom of the sampling box.

[0008] Furthermore, it includes a backwash pipe and a backwash valve. The backwash valve is installed on the backwash pipe. The front end of the backwash pipe is connected to backwash water, and the rear end of the backwash pipe is connected to a sampling pipe to backwash the membrane filter in reverse through the sampling pipe. The bottom of the sampling box is provided with a vent, which is sealed by a sealing element.

[0009] Furthermore, an overflow hole is provided on the side of the top of the sampling box.

[0010] Furthermore, a base plate is provided at the lower part of the bracket, and the sampling pump is mounted on the base plate.

[0011] Furthermore, it includes a control device, which is electrically connected to the control signal input terminals of the sampling pump and the sampling valve, respectively, to control the operation of the sampling pump and the sampling valve.

[0012] Compared with existing technologies, this invention has the following advantages: To overcome the problems of manual full-process sampling, this invention provides a fully automated sampling device. This device uses a sampling box and a membrane filter installed within it to sample and pre-treat water samples. Then, through the coordinated operation of a sampling valve and a sampling pump, the pre-treated water sample is delivered to an online water quality analyzer, achieving continuous and intermittent automatic sampling of water samples. This reduces manpower waste, shortens the sampling cycle, and avoids problems such as experimental data errors and process control delays caused by manual sampling. Therefore, this invention has strong practicality and broad application prospects. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the fully automated sampling device according to an embodiment of the present invention.

[0014] Figure 2 This is a block diagram illustrating the control principle of an embodiment of the present invention. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] It should be noted that the following detailed descriptions are exemplary and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0017] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0018] like Figure 1As shown, this embodiment provides a fully automated sampling device, including a support 1, a sampling box 2, an inlet tube 3, a sampling tube 4, and a sampling pump 5. The sampling box 2 is installed on the support 1 and is required to be sealed and leak-proof. The front end of the inlet tube 3 is connected to the water pump delivering the sampling point, and the rear end of the inlet tube 3 extends into the sampling box 2. A membrane filter 6 is installed inside the sampling box 2, and the outlet end of the membrane filter 6 is connected to the sampling tube 4. The sampling tube 4 extends outward from the sampling box 2 and is connected to the inlet of the sampling pump 5 on the support 1. A sampling valve 7 is installed on the sampling tube 4, and the outlet of the sampling pump 5 is connected to an online water quality analyzer via a pipeline.

[0019] To simultaneously sample and analyze multiple water samples, multiple sampling boxes can be arranged side-by-side on the support frame, each equipped with a corresponding number of inlet tubes, sampling tubes, and membrane filters. The inlet tube of each sampling box is connected to a water pump at a different sampling point. Sampling valves are installed on the sampling tubes of each of the multiple sampling boxes, and the sampling tubes downstream of these valves are connected in parallel to the sampling pump. In this embodiment, four sampling boxes 2 are arranged side-by-side on the support frame 1. Each sampling box 2 has a sampling valve (7, 8, 9, 10) installed on its sampling tube 4. The four sampling tubes 4 are connected in parallel to the sampling pump 5 at the bottom of the support frame. This allows for switching between different sampling boxes via sampling valves 7, 8, 9, and 10, enabling the delivery and testing of water samples from different points within the entire sampling system.

[0020] In this embodiment, the sample inlet tube 3 enters the sampling box 2 from the upper side, extends vertically downwards into the bottom of the sampling box 2, and has a 90-degree bend near the bottom. When water is introduced, the water sample enters from the bottom and overflows upwards, ensuring water flow and circulation.

[0021] In this embodiment, the membrane filter has an accuracy of approximately 0.2 micrometers. This accuracy ensures that the wastewater samples taken at the inlet of the wastewater treatment plant and at the sampling points in the biological reactor are adequately filtered to meet the requirements of the downstream online water quality analyzer for online detection.

[0022] In this embodiment, the fully automated sampling device further includes a backwash pipe 11 and a backwash valve 12. The backwash valve 12 is an electric ball valve, which is installed on the backwash pipe 11. The front end of the backwash pipe 11 is connected to backwash water, and the rear end of the backwash pipe 11 is connected to the sampling pipe 4, so as to backwash the membrane filter 6 in reverse through the sampling pipe 4. The bottom of the sampling box 2 is provided with a vent 13, which is sealed by a sealing element.

[0023] The sampling tube 4 is connected to the plant's tap water or reclaimed water via backwash pipe 11 for backwashing, and the backwash valve 12 is used for switching and isolation. Before and after the end of a sampling cycle, the membrane filter is backwashed by switching the backwash valve to ensure the cleanliness of the membrane filter surface.

[0024] An overflow hole 14 is provided on the top side of the sampling box 2. The overflow hole 14 can be connected to an overflow pipe to prevent the sampled water from exceeding the volume of the sampling box 2.

[0025] A base plate 15 is provided at the bottom of the bracket 1, and the sampling pump 5 is installed on the base plate 15.

[0026] To achieve automated control of the device, such as Figure 2 As shown, the fully automated sampling device also includes a control device 16. This control device is electrically connected to the control signal input terminals of the sampling pump 5, sampling valves 7, 8, 9, and 10, and the backwash valve 12, respectively, to control the operation of the sampling pump, sampling valves, and backwash valve. To achieve automatic control of each valve, all valves are electrically operated.

[0027] The fully automated sampling device provided by this invention can replace manual sampling of water bodies at multiple frequencies, thereby enabling online detection, significantly reducing the intensity of manual full-process experiments in wastewater treatment plants, avoiding data errors that may be caused by manual sampling, and improving the accuracy and efficiency of process control.

[0028] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its scope of protection shall still fall within the protection scope of this utility model.

Claims

1. A fully automated sampling device, characterized in that, The system includes a support frame, a sampling box, an inlet tube, a sampling pipe, and a sampling pump. The sampling box is mounted on the support frame. The front end of the inlet tube is connected to a water pump delivering the sampling point, and the rear end of the inlet tube extends into the sampling box. A membrane filter is installed inside the sampling box, and the outlet end of the membrane filter is connected to the sampling pipe. The sampling pipe extends outward from the sampling box and is connected to the inlet of the sampling pump on the support frame. A sampling valve is installed on the sampling pipe, and the outlet of the sampling pump is connected to an online water quality analyzer via a pipeline.

2. The fully automated sampling device according to claim 1, characterized in that, Multiple sampling boxes are arranged side by side on the support, and are equipped with a corresponding number of inlet tubes, sampling tubes and membrane filters. The inlet tube of each sampling box is connected to a water pump for different sampling points. Sampling valves are installed on the sampling tubes of the multiple sampling boxes, and the sampling tubes downstream of the sampling valves are connected in parallel to the sampling pump.

3. The fully automated sampling device according to claim 1, characterized in that, The sample inlet tube enters the sampling box from the upper side and extends into the bottom of the sampling box.

4. The fully automated sampling device according to claim 1, characterized in that, It includes a backwash pipe and a backwash valve. The backwash valve is installed on the backwash pipe. The front end of the backwash pipe is connected to backwash water, and the rear end of the backwash pipe is connected to a sampling pipe so as to backwash the membrane filter in reverse through the sampling pipe. The bottom of the sampling box is provided with a vent, which is sealed by a sealing element.

5. The fully automated sampling device according to claim 1, characterized in that, An overflow hole is provided on the side of the top of the sampling box.

6. The fully automated sampling device according to claim 1, characterized in that, The bracket has a base plate at its lower part, and the sampling pump is mounted on the base plate.

7. The fully automated sampling device according to claim 1, characterized in that, It includes a control device, which is electrically connected to the control signal input terminals of the sampling pump and the sampling valve, respectively, to control the operation of the sampling pump and the sampling valve.

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