Water quality sample filtering device for environmental detection

Abstract

The utility model belongs to water quality sample filtration field discloses a water quality sample filtration device for environmental detection, including three -stage filtration mechanism, three -stage filtration mechanism includes filter drum, and filter drum is equipped with three groups, and from top to bottom is in turn primary filter drum, secondary filter drum and tertiary filter drum, and primary filter drum and secondary filter drum below are installed with a group of three -way valves of switchable outlet water direction respectively, and three -way valve one end is installed with side outlet water pipe, and the other end is installed with a group of communicating pipes, and three groups of filter drums all are equipped with a group of filter water plate that can filter water quality sample, compared with prior art, the utility model has the following beneficial effects: three -stage filtration mechanism, integrated big, small aperture filter plate and filter membrane type filter plate, water sample is in turn through primary filtration, secondary filtration and precision filtration, and the flow direction is switched through three -way valve flexibly, and primary filtration, secondary filtration and precision filtration water sample can be collected respectively, compared with traditional single sample collection mode, the diversity and flexibility of water quality detection are improved significantly.

Description

Technical Field

[0001] This utility model specifically relates to a water quality sample filtration device for environmental testing, belonging to the field of water quality sample filtration technology. Background Technology

[0002] Environmental monitoring water quality sample filtration can filter out impurities such as suspended solids, particulate matter, and colloids in water samples, thus facilitating the analysis of dissolved pollutant concentrations in the water.

[0003] A search revealed Chinese patent CN222173335U, which discloses a water quality sample filtration device for environmental monitoring. By adding a filter bucket, a drive motor, and a support frame inside the filter box, the filter bucket can be rotated by the drive motor when water samples need to be filtered. During the rotation, the centrifugal force generated by the filter bucket will throw water out of the filter bucket, thereby effectively increasing the water treatment efficiency.

[0004] However, current filtration devices can only retain a single filtered sample, which is insufficient to meet diverse testing needs. Water quality testing requires separate analysis of water samples in different states, such as the content of substances after primary filtration and residual impurities after fine filtration. Existing designs limit the comprehensiveness and flexibility of testing, making it difficult to obtain multiple types of water samples and affecting the integrity and accuracy of test results. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing an environmental testing water quality sample filtration device with a three-stage filtration mechanism. This device integrates large and small pore size filter plates and membrane filter plates, allowing water samples to pass through primary filtration, secondary filtration, and fine filtration sequentially. The flow direction can be flexibly switched via a three-way valve, enabling the separate collection of primary, secondary, and fine filtration water samples. Compared to traditional single-sample collection methods, this significantly improves the diversity and flexibility of water quality testing, and solves the problems mentioned in the background art.

[0006] An environmental testing water quality sample filtration device, comprising:

[0007] The three-stage filtration mechanism includes filter cartridges, which are arranged in three sets, from top to bottom as a primary filter cartridge, a secondary filter cartridge, and a tertiary filter cartridge. Each of the primary and secondary filter cartridges is equipped with a three-way valve that can switch the water outlet direction. One end of the three-way valve is equipped with a side outlet pipe, and the other end is equipped with a connecting pipe. Each of the three sets of filter cartridges is equipped with a filter plate that can filter water samples. The three sets of filter plates are arranged from top to bottom as a primary filter plate, a secondary filter plate, and a tertiary filter plate.

[0008] The disassembly mechanism includes a vertical frame disposed on one side of the filter cartridge, a hollow block slidably disposed inside the vertical frame, a horizontal connecting rod connected inside the hollow block by bolts, and an outer ring installed on the outside of the filter cartridge.

[0009] In a preferred embodiment, a support ring is provided below the filter plate, and the support ring is fixedly connected to the inner wall of the filter cylinder, with the filter plate placed on the support ring.

[0010] In a preferred embodiment, the filter cylinder is threadedly connected to a cylinder cover, the uppermost cylinder cover is equipped with a water inlet pipe, and the two lower cylinder covers are provided with water inlets. The upper end of the water inlet is connected to a connecting pipe through a nut.

[0011] In a preferred embodiment, a lower water outlet pipe is installed below the three-stage filter cartridge.

[0012] In a preferred embodiment, one end of the cross link is fixedly connected to the outer ring, and the hollow block opens towards the cross link.

[0013] In a preferred embodiment, a base is installed below the frame, and an anti-slip pad is installed below the base.

[0014] In a preferred embodiment, a set of guide blocks are installed on both sides of the hollow block, and a set of guide grooves are opened on opposite sides inside the frame, and the hollow block is slidably connected to the guide blocks and guide grooves.

[0015] In a preferred embodiment, the primary filter plate is a large-pore filter plate, the secondary filter plate is a small-pore filter plate, and the tertiary filter plate is a ceramic filter plate.

[0016] Beneficial effects:

[0017] 1. The innovative three-stage filtration mechanism, through the configuration of large-pore filter plates, small-pore filter plates, and membrane filter plates, achieves tiered treatment of water samples. The water sample first undergoes primary filtration through the primary filter cartridge, trapping large particles such as silt. By switching via a three-way valve, the primary filtered water sample can be discharged and stored through the side outlet pipe. If further processing is required, switching the three-way valve allows the water sample to flow into the secondary filter cartridge through the connecting pipe. The small-pore filter plate then filters out small impurities such as colloids. The secondary filtered sample can also be selected for discharge or further filtration via the three-way valve. When further filtration is needed, the water sample enters the tertiary filter cartridge, undergoes fine filtration through the membrane filter plate, and is discharged through the lower outlet pipe. This mechanism flexibly controls the water sample flow direction through the three-way valve. Compared with the limitations of traditional single-sample technology, it can efficiently obtain various types of water samples from primary filtration, secondary filtration, and fine filtration, meeting diverse testing needs.

[0018] 2. The innovative detachable filter mechanism enhances maintenance convenience. Since the filter plates are prone to clogging after long-term filtration, when cleaning or replacing the filter plates is required, simply remove the nuts and use the horizontal connecting rod to move the hollow block smoothly upward along the inner track of the vertical frame, so that the adjacent filter cartridges are separated from each other. Then, remove the bolts and take off the horizontal connecting rod to easily disassemble the filter cartridges. Finally, unscrew the cartridge cover to quickly remove the internal filter plates for cleaning or replacement. The maintenance method is simple and quick. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a water quality sample filtration device for environmental testing according to the present invention.

[0020] Figure 2 This is a schematic diagram of the structure of a water quality sample filtration device for environmental testing according to this utility model from another perspective;

[0021] Figure 3 This is a schematic diagram of the connection structure of the filter cylinder in an environmental testing water quality sample filtration device according to the present invention.

[0022] Figure 4 for Figure 1 A magnified structural diagram of part A;

[0023] Figure 5 This is a cross-sectional view of the connection structure of the hollow block in the water quality sample filtration device for environmental testing according to this utility model.

[0024] In the diagram, 1. Three-stage filtration mechanism; 11. Filter cartridge; 12. Three-way valve; 13. Side outlet pipe; 14. Connecting pipe; 15. Nut; 16. Inlet; 17. Bottom outlet pipe; 18. Inlet pipe; 19. Cylinder cover; 110. Support ring; 111. Filter plate; 2. Disassembly mechanism; 21. Base; 22. Vertical frame; 23. Guide block; 24. Hollow block; 25. Bolt; 26. Outer ring; 27. Horizontal connecting rod; 28. Guide groove. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-5 As shown, an environmental testing water quality sample filtration device includes:

[0027] The three-stage filtration mechanism 1 includes filter cylinders 11, which are arranged in three groups, from top to bottom as a primary filter cylinder, a secondary filter cylinder, and a tertiary filter cylinder. A three-way valve 12 that can switch the water outlet direction is installed below the primary filter cylinder and the secondary filter cylinder respectively. A side outlet pipe 13 is installed at one end of the three-way valve 12, and a connecting pipe 14 is installed at the other end. Each of the three filter cylinders 11 is equipped with a filter plate 111 that can filter water samples. The three filter plates 111 are arranged from top to bottom as a primary filter plate, a secondary filter plate, and a tertiary filter plate.

[0028] The disassembly mechanism 2 includes a vertical frame 22 disposed on one side of the filter cylinder 11, a hollow block 24 slidably disposed inside the vertical frame 22, a horizontal connecting rod 27 connected inside the hollow block 24 by bolts 25, and an outer ring 26 installed on the outside of the filter cylinder 11.

[0029] Please see Figure 3 As shown, a support ring 110 is provided below the filter plate 111, and the support ring 110 is fixedly connected to the inner wall of the filter cylinder 11. Placing the filter plate 111 on the support ring 110 facilitates the quick disassembly and installation of the filter plate 111, which is beneficial for later cleaning, maintenance and replacement.

[0030] Please see Figures 1-3 As shown, a cylinder cover 19 is threadedly connected to the top of the filter cylinder 11. A water inlet pipe 18 is installed on the top cylinder cover 19. Water inlets 16 are provided on the two sets of cylinder covers 19 below. The upper end of the water inlet 16 is connected to the connecting pipe 14 through a nut 15, so that the water inside the connecting pipe 14 can flow into the filter cylinder 11 through the water inlet 16.

[0031] Please see Figures 1-3 As shown, a lower water outlet pipe 17 is installed below the three-stage filter cartridge.

[0032] Please see Figures 1-2 As shown, one end of the horizontal connecting rod 27 is fixedly connected to the outer ring 26, and the hollow block 24 opens towards the horizontal connecting rod 27.

[0033] Please see Figures 1-2 As shown, a base 21 is installed below the frame 22, and an anti-slip pad is installed below the base 21. The anti-slip pad has good friction, making it difficult for the base 21 to slide when placed.

[0034] Please see Figure 4 As shown, a set of guide blocks 23 are installed on both sides of the hollow block 24, and a set of guide grooves 28 are opened on opposite sides inside the frame 22. The hollow block 24 is slidably connected to the guide grooves 28 through the guide blocks 23. When the hollow block 24 moves upward along the inner side of the frame 22, the hollow block 24 can drive the guide blocks 23 to move along the path of the guide grooves 28.

[0035] Please see Figure 3As shown, the first-stage filter plate is a large-pore filter plate, the second-stage filter plate is a small-pore filter plate, and the third-stage filter plate is a membrane filter plate. The large-pore filter plate can intercept coarse particles such as silt and sand, the small-pore filter plate can trap fine particles such as colloids, and the third-stage membrane filter plate can achieve more refined water filtration.

[0036] In practical use, the working principle of this utility model is as follows:

[0037] In use, water samples can enter the primary filter cartridge through the inlet pipe 18. The primary filter plate with large pores first filters out large particles such as silt. By adjusting the three-way valve 12, the sample can be discharged through the side outlet pipe 13 or flow into the secondary filter cartridge through the connecting pipe 14. When the water sample enters the secondary filter cartridge, the secondary filter plate with small pores filters out small impurities such as colloids. The water sample after secondary filtration can also be switched through the three-way valve 12 to decide whether to discharge for sampling or continue filtration. If continued filtration is selected, the water sample enters the tertiary filter cartridge, where it undergoes fine filtration by the membrane filter plate and is discharged for sampling through the lower outlet pipe 17, realizing stratified water sample treatment and collection of multiple types of samples.

[0038] When the filter plate 111 needs to be cleaned or replaced, first remove the nut 15 to disconnect the inlet 16 from the connecting pipe 14. The hollow block 24 is moved upward along the inner side of the vertical frame 22 by the horizontal connecting rod 27. The hollow block 24 can then move the guide block 23 along the path of the guide groove 28, so that the two sets of filter cylinders 11 that are close to each other are moved away. Then, remove the bolt 25 and take off the horizontal connecting rod 27, so that the filter cylinder 11 can be easily removed from the device. After removal, the cylinder cover 19 can be unscrewed to take out the filter plate 111 for cleaning or replacement, thus completing convenient maintenance.

[0039] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances. Moreover, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made 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 environmental detection water quality sample filtering device, characterized by, include: The three-stage filtration mechanism (1) includes a filter cylinder (11), which is provided in three sets, from top to bottom as a first-stage filter cylinder, a second-stage filter cylinder and a third-stage filter cylinder. A set of three-way valves (12) that can switch the water outlet direction is installed below the first-stage filter cylinder and the second-stage filter cylinder respectively. A side outlet pipe (13) is installed at one end of the three-way valve (12), and a set of connecting pipes (14) is installed at the other end. Each of the three sets of filter cylinders (11) is provided with a set of filter plates (111) that can filter water samples. The three sets of filter plates (111) are, from top to bottom, a first-stage filter plate, a second-stage filter plate and a third-stage filter plate. The disassembly mechanism (2) includes a vertical frame (22) set on one side of the filter cylinder (11), a hollow block (24) is slidably provided in the vertical frame (22), a horizontal connecting rod (27) is connected in the hollow block (24) by bolts (25), and an outer ring (26) is installed on the outside of the filter cylinder (11).

2. The water quality sample filtering device for environment detection according to claim 1, characterized in that: The filter plate (111) is provided with a support ring (110) below it, and the support ring (110) is fixedly connected to the inner wall of the filter cylinder (11). The filter plate (111) is placed on the support ring (110).

3. The water quality sample filtering device for environment detection according to claim 2, characterized in that: The filter cylinder (11) is threaded with a cylinder cover (19) on top. The uppermost cylinder cover (19) is equipped with a water inlet pipe (18). The two lower cylinder covers (19) are provided with water inlets (16). The upper end of the water inlet (16) is connected to the connecting pipe (14) through a nut (15).

4. The water quality sample filtering device for environment detection according to claim 3, characterized in that: A lower water outlet pipe (17) is installed below the three-stage filter cartridge.

5. The water quality sample filtering device for environment detection according to claim 1, characterized in that: One end of the cross link (27) is fixedly connected to the outer ring (26), and the hollow block (24) opens toward the cross link (27).

6. The water quality sample filtering device for environment detection according to claim 5, characterized in that: A base (21) is installed below the upright frame (22), and an anti-slip pad is installed below the base (21).

7. The water quality sample filtering device for environmental detection according to claim 6, characterized in that: A set of guide blocks (23) are installed on both sides of the hollow block (24), and a set of guide grooves (28) are opened on both sides of the inside of the frame (22), and the hollow block (24) is slidably connected to the guide grooves (28) through the guide blocks (23).

8. The water quality sample filtering device for environment detection according to claim 1, characterized in that: The primary filter plate is a large-pore filter plate, the secondary filter plate is a small-pore filter plate, and the tertiary filter plate is a ceramic filter plate.

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