Water intake filter device

Abstract

The utility model relates to a kind of detection water taking filter devices, including water storage tank, the inside of water storage tank has first chamber, second chamber, third chamber, the first, second chamber is separated by filter screen one, the second, third chamber is separated by filter screen two, the mesh number of filter screen two is greater than the mesh number of filter screen one.In the detection of treated sewage, the detection water taking filter device can carry out pre-filtering before water taking, and COD detection and ammonia nitrogen detection are separated filtering and separated water taking, which can effectively reduce the adverse effects caused by particulate impurities directly entering detection equipment.

Description

Technical Field

[0001] This utility model relates to a water filtration detection device. Background Technology

[0002] In wastewater treatment, COD and ammonia nitrogen are core indicators for measuring the degree of water pollution. Their test results directly determine the evaluation of wastewater treatment effectiveness, the judgment of compliance with discharge standards, and the direction of subsequent process optimization. Currently, the routine testing process for treated water quality in wastewater treatment plants typically includes two core steps: "sampling and testing." This involves collecting water samples from the effluent pipes of treatment units such as sedimentation tanks and filters, directly or after simple mixing, and then sending them to equipment such as COD analyzers and ammonia nitrogen analyzers. The indicators are then determined using methods such as potassium dichromate oxidation, spectrophotometry, and electrode methods.

[0003] In existing technologies, the sampling process generally relies on manual or automated sampling devices to directly collect water samples from the water body, without a dedicated pre-filtration step for the sampled water. It is widely believed in the industry that wastewater treatment processes, such as sedimentation and filtration, have removed most suspended impurities, resulting in low levels of residual particulate matter in the water sample that would not significantly affect the testing process. Therefore, current testing procedures often focus on optimizing the testing methods (such as increasing testing speed and reducing reagent consumption), while neglecting the role of sampled water pretreatment in protecting equipment and ensuring the accuracy of results.

[0004] Although the concentration of suspended particulate matter in wastewater is significantly reduced after treatment, in actual operation, water samples may still contain various particulate impurities (such as incompletely settled activated sludge fragments, biofilm slough, metal oxide particles from pipeline corrosion, and tiny flocs formed by incompletely reacted flocculants added in the treatment process). Due to the lack of a pre-filtration stage in existing technologies, these impurities directly enter the detection equipment, leading to the following problems: 1. Particulate matter impurities can easily clog key flow path components of detection equipment, such as sampling lines, peristaltic pump tubing, flow cells, and electrode probe protective covers. In the "flow injection analysis" method for COD detection, particles may get stuck at the valve core of the injection valve or the interface of the reaction coil, causing flow path blockage, sudden pressure rise, and even damage to the pump body and motor. If particulate matter adheres to the sensitive membrane surface of the ion-selective electrode probe commonly used for ammonia nitrogen detection, it will directly hinder ion exchange and signal transmission. Long-term accumulation may make the probe impossible to disassemble and clean, requiring complete replacement.

[0005] 2. Particulate matter can interfere with the detection process through physical or chemical interactions, leading to data distortion: The surface of particulate matter (such as activated sludge particles) is rich in functional groups such as hydroxyl and carboxyl groups, which can easily adsorb organic matter (affecting COD detection) or ammonia nitrogen ions (affecting ammonia nitrogen detection) in water samples, resulting in an underestimation of the actual concentration of the target substance; some particulate matter (such as metal oxides) may react with detection reagents (such as potassium dichromate and Nessler's reagent), consuming the target reagent or generating interfering products, further amplifying the detection error.

[0006] To address the above technical issues, this paper proposes a detection water filtration device. Utility Model Content

[0007] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a detection and water filtration device.

[0008] To solve the above-mentioned technical problems, the technical solution of this utility model is: a water filtration detection device, including a water storage tank, the water storage tank having a first chamber, a second chamber and a third chamber inside, the first and second chambers being separated by a filter screen one, the second and third chambers being separated by a filter screen two, the mesh number of the filter screen two being greater than that of the filter screen one; A main sewage pipe is installed beside the water storage tank. An inlet pipe, an outlet pipe, and a return pipe connect the main sewage pipe to the water storage tank. The inlet pipe is connected between the lower part of the first chamber and the main sewage pipe, and an inlet valve is installed on it; The outlet pipe is connected between the bottom of the first, second, and third chambers and the main sewage pipe, and is equipped with an outlet valve and an outlet pump. The return water pipe is connected between the high position of the first chamber and the main sewage pipe, and a one-way valve is installed on it; Sampling tubes are connected to both the second and third chambers, and sampling valves are installed in both.

[0009] Preferably, the first filter screen has a mesh size of 20, and the second filter screen has a mesh size of 100.

[0010] Preferably, the first chamber, the second chamber, and the third chamber are arranged horizontally in sequence.

[0011] Preferably, the return water pipe is connected to the upper part of the first chamber via an overflow port.

[0012] Preferably, the one-way valve is installed on the return water pipe near the main sewage pipe.

[0013] Compared with the prior art, the present invention has the following advantages: In the detection of treated wastewater, the detection water filtration device can perform pre-filtration before water intake, and COD detection and ammonia nitrogen detection are filtered and taken separately, which can effectively reduce the adverse effects caused by particulate impurities directly entering the detection equipment.

[0014] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0015] Figure 1 This is a top view of an embodiment of the present utility model.

[0016] Figure 2 This is a front view of the water storage tank according to an embodiment of the present utility model.

[0017] Figure 3 This is a schematic diagram of the working state of an embodiment of the present utility model. Figure 1 .

[0018] Figure 4 This is a schematic diagram of the working state of an embodiment of the present utility model. Figure 2 .

[0019] Figure 5 This is a schematic diagram of the working state of an embodiment of the present utility model. Figure 3 .

[0020] Figure 6 This is a schematic diagram of the working state of an embodiment of the present utility model. Figure 4 .

[0021] In the diagram: 1. Water storage tank; 2. First chamber; 3. Second chamber; 4. Third chamber; 5. Filter screen 1; 6. Filter screen 2; 7. Main sewage pipe; 8. Inlet pipe; 9. Outlet pipe; 10. Return pipe; 11. Inlet valve; 12. Outlet valve; 13. Outlet pump; 14. Check valve; 15. Sampling pipe; 16. Sampling valve; 17. Overflow outlet. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] 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.

[0024] 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.

[0025] like Figures 1-6 As shown, this embodiment provides a water filtration detection device, including a water storage tank 1. The water storage tank has a first chamber 2, a second chamber 3, and a third chamber 4 inside. The first and second chambers are separated by a filter screen 5, and the second and third chambers are separated by a filter screen 6. The mesh number of the filter screen 6 is greater than that of the filter screen 1. A sewage main pipe 7 is installed beside the water storage tank. An inlet pipe 8, an outlet pipe 9, and a return pipe 10 are connected between the sewage main pipe and the water storage tank. The inlet pipe is connected between the lower part of the first chamber and the main sewage pipe, and an inlet valve 11 is installed on it; The outlet pipe is connected between the bottom of the first, second, and third chambers and the main sewage pipe, and is equipped with an outlet valve 12 and an outlet pump 13. The return water pipe is connected between the high position of the first chamber and the main sewage pipe, and a one-way valve 14 is installed on it; Sampling tubes 15 are connected to the second and third chambers, and sampling valves 16 are installed in both chambers.

[0026] In this embodiment of the invention, the first filter screen has a mesh size of 20, and the second filter screen has a mesh size of 100.

[0027] In this embodiment of the utility model, the first chamber, the second chamber, and the third chamber are arranged horizontally in sequence.

[0028] In this embodiment of the invention, the return water pipe is connected to the upper part of the first chamber via an overflow port 17.

[0029] In this embodiment of the invention, the one-way valve is installed on the return water pipe near the main sewage pipe.

[0030] In this embodiment of the invention, the working principle of the water detection and filtration device is as follows: 1. When water intake is not being monitored, the inlet valve and outlet valve are closed, and wastewater only flows forward through the main wastewater pipe to the next process. Figure 3 As shown.

[0031] 2. When taking water samples, open the inlet valve and close the outlet valve. Sewage from the main sewage pipe flows sequentially into the first, second, and third chambers, with the water level gradually increasing. Water in the second chamber is filtered through filter screen one, and water in the third chamber is filtered through filter screen two. Figure 4 As shown.

[0032] 3. Open the sampling valve and take out the water sample to be tested from the corresponding sampling tubes in the second and third chambers respectively.

[0033] 4. When the water tank is full to the overflow port, some water flows from the return pipe to the main sewage pipe, such as... Figure 5 As shown.

[0034] 5. After water collection / testing is completed, close the inlet valve and open the outlet valve to drain the water from the storage tank into the main sewage pipe. Figure 6 As shown.

[0035] 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 above-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 technical solution shall still fall within the protection scope of this utility model.

Claims

1. A water filtration detection device, characterized in that: Includes a water storage tank, the interior of which has a first chamber, a second chamber, and a third chamber. The first and second chambers are separated by a filter screen, and the second and third chambers are separated by a filter screen. The mesh size of the filter screen is greater than that of the filter screen. A main sewage pipe is installed beside the water storage tank. An inlet pipe, an outlet pipe, and a return pipe connect the main sewage pipe to the water storage tank. The inlet pipe is connected between the lower part of the first chamber and the main sewage pipe, and an inlet valve is installed on it; The outlet pipe is connected between the bottom of the first, second, and third chambers and the main sewage pipe, and is equipped with an outlet valve and an outlet pump. The return water pipe is connected between the high position of the first chamber and the main sewage pipe, and a one-way valve is installed on it; Sampling tubes are connected to both the second and third chambers, and sampling valves are installed in both.

2. The detection and water filtration device according to claim 1, characterized in that: The first filter screen has a mesh size of 20, and the second filter screen has a mesh size of 100.

3. The detection and water filtration device according to claim 1, characterized in that: The first chamber, the second chamber, and the third chamber are arranged horizontally in sequence.

4. The detection and water filtration device according to claim 1, characterized in that: The return water pipe is connected to the upper part of the first chamber via an overflow outlet.

5. The detection and water filtration device according to claim 1, characterized in that: The one-way valve is installed on the return water pipe near the main sewage pipe.

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