Quantitative collection device for phytoplankton in turbid water body

Abstract

The utility model discloses a quantitative phytoplankton collecting device for turbid water, which comprises a liquid container, a mounting frame fixedly connected with the liquid container is arranged in the liquid container, a centrifugal filter is arranged on the mounting frame, a filter component is arranged below the liquid container, and the filter component comprises a support frame positioned below the mounting frame and fixedly connected with the inner wall of the liquid container. A water storage tank communicated with the bottom of the liquid container is arranged below the filtering assembly, a switch control valve is arranged at the bottom of the water storage tank, a collecting container communicated through a flow guide pipe is arranged on the side wall of the water storage tank, and a peristaltic pump is arranged between the water storage tank and the collecting container; a fixedly connected placing rack is arranged in the collecting container, and a Luge reagent tank is arranged on the placing rack.

Description

A quantitative collection device for phytoplankton in turbid water. Technical Field

[0001] This utility model belongs to the field of biological collection technology, and more specifically, it relates to a device for quantitative collection of phytoplankton in turbid water. Background Technology

[0002] Phytoplankton refers to tiny plants that live in water and float on the surface. Water quality analysis sometimes involves collecting phytoplankton for analysis, which helps inform the overall water quality results. Currently, phytoplankton collection mainly uses manual methods such as handheld nets or funnel containers moved in the water, followed by sedimentation and filtration. However, due to water turbidity, the presence of sediment and other impurities, and the time-consuming, tedious, and inefficient process, it is difficult to effectively filter and separate plankton, significantly impacting the efficiency of phytoplankton research. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a device for quantitatively collecting phytoplankton in turbid water, thereby solving the problems mentioned in the background section.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a device for quantitative collection of phytoplankton in turbid water, characterized in that: it includes a liquid container, a fixedly connected mounting frame inside the liquid container, a centrifugal filter on the mounting frame, a filtration assembly below the liquid container, the filtration assembly including a support frame fixedly connected to the inner wall of the liquid container below the mounting frame, a detachable pressure plate on the support frame, an ultrafiltration membrane between the detachable pressure plate and the support frame, a water storage tank communicating with the bottom of the liquid container below the filtration assembly, a switch control valve at the bottom of the water storage tank, a collection container communicating with the water storage tank via a guide pipe on the side wall of the water storage tank, a peristaltic pump between the water storage tank and the collection container, a fixedly connected placement rack inside the collection container, and a Lugo reagent container on the placement rack.

[0005] Preferably, the water storage tank and the bottom of the collection container are provided with a support base that is fixedly connected.

[0006] Preferably, the centrifugal filter is provided with a flow-guiding baffle at the bottom.

[0007] Preferably, the centrifugal filter is provided with a detachable filter screen.

[0008] Preferably, the surface of the placement rack is provided with a protective cover on the outside of the Lugo reagent container.

[0009] Preferably, the liquid container, water tank and collection container are all provided with a transparent observation plate on their surfaces.

[0010] This invention provides a device for quantitative collection of phytoplankton in turbid water, which has the following beneficial effects:

[0011] 1. With internal centrifugal filters and ultrafiltration membranes, it can efficiently and accurately filter impurities and solid particles, ensuring the purity of the sampled liquid and making the internal phytoplankton samples more accurate and complete, which is convenient for subsequent detection and counting.

[0012] 2. By setting a water storage tank at the bottom, the sedimented silt can be automatically released naturally through the switch control valve. Then, the remaining liquid containing phytoplankton is extracted by a peristaltic pump. In addition, the phytoplankton is effectively fixed and preserved with Lugo reagent, which is convenient for detection and counting.

[0013] 3. The entire device integrates filtration and collection functions, saving time and effort, making it convenient and efficient. The integrated design of the device is simple in structure, reasonable in design, economical and practical, and has a good application prospect. Attached Figure Description

[0014] Figure 1 is a front structural diagram of this utility model.

[0015] Figure 2 is a top view of the internal structure of this utility model.

[0016] Figure 3 is a front view of the internal structure of this utility model.

[0017] In the diagram, 1. Liquid container; 2. Mounting frame; 3. Centrifugal filter; 4. Filter screen; 5. Filter assembly; 51. Support frame; 52. Removable clamping plate; 53. Ultrafiltration membrane; 6. Water storage tank; 7. Switch control valve; 8. Collection container; 9. Peristaltic pump; 10. Placement rack; 11. Lugo reagent container; 12. Protective cover; 13. Transparent observation plate; 14. Support base; 15. Drainage baffle. Detailed Implementation

[0018] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0019] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship 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. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] Please refer to Figures 1 to 3. This utility model provides a technical solution: a device for quantitative collection of phytoplankton in turbid water, comprising a liquid container 1, a fixedly connected mounting frame 2 inside the liquid container 1, a centrifugal filter 3 on the mounting frame 2, a detachably connected filter screen 4 inside the centrifugal filter 3, and a flow guide baffle 15 at the bottom of the centrifugal filter 3. A filter assembly 5 is located below the liquid container 1, comprising a support frame 51 fixedly connected to the inner wall of the liquid container 1 below the mounting frame 2, a detachable pressure plate 52 on the support frame 51, and an ultrafiltration membrane 53 located between the detachable pressure plate and the support frame 51. A water storage tank 6 connected to the bottom of the liquid container 1 is located below the filter assembly 5, and a switch control valve 7 is located at the bottom of the water storage tank 6. A collection container 8 connected to the side wall of the water storage tank 6 via a guide pipe is located. A peristaltic pump 9 is located between the water storage tank 6 and the collection container 8. A fixedly connected placement rack 10 is located inside the collection container 8, and a Lugo reagent container 11 is placed on the placement rack 10. A protective cover 12 is located on the surface of the placement rack 10 outside the Lugo reagent container 11.

[0022] The bottom of the water storage tank 6 and the collection container 8 are provided with a fixed support base 14, and the surfaces of the liquid container 1, the water storage tank 6 and the collection container 8 are all provided with transparent observation plates 13.

[0023] The specific usage and function of this embodiment are as follows: The liquid collected by the collector is easily placed into the liquid container 1. The centrifugal filter 3 located inside the liquid container 1 uses the centrifugal force generated by high-speed rotation to throw denser solid particles (such as silt and pebbles) against the container wall and cause them to settle, while the purified water flows out from the center, effectively removing impurities and solid particles from the liquid. Furthermore, the internal filter screen 4 can be disassembled and replaced for easy cleaning. The filtered liquid then passes through the ultrafiltration membrane 53 below for further filtration, which can further filter out smaller particles and impurities in the water and ensure that phytoplankton can pass smoothly into the reservoir. The sample is placed in water tank 6 and allowed to stand for a period of time. The remaining sediment and impurities that cannot be filtered out are deposited at the bottom of water tank 6. The liquid containing phytoplankton is located above the sediment and impurities. Then, the control valve 7 is opened, and the sediment and impurities at the bottom are discharged first by gravity. The liquid containing phytoplankton is left in water tank 6. Then, the peristaltic pump 9 located between water tank 6 and collection container 8 is started to draw the liquid into collection container 8. The sample is then fixed and preserved by Lugo reagent in Lugo reagent container 11, so that it is stable under laboratory conditions and facilitates subsequent microscopic examination and counting.

[0024] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A phytoplankton quantitative collection device for turbid water bodies, characterized in that: The system includes a liquid container (1), a fixedly connected mounting bracket (2) inside the liquid container (1), a centrifugal filter (3) on the mounting bracket (2), a filter assembly (5) below the liquid container (1), the filter assembly (5) including a support frame (51) fixedly connected to the inner wall of the liquid container (1) below the mounting bracket (2), a detachable pressure plate (52) on the support frame (51), an ultrafiltration membrane (53) between the detachable pressure plate and the support frame (51), a water storage tank (6) connected to the bottom of the liquid container (1) below the filter assembly (5), a switch control valve (7) at the bottom of the water storage tank (6), a collection container (8) connected to the side wall of the water storage tank (6) through a guide pipe, a peristaltic pump (9) between the water storage tank (6) and the collection container (8), a fixedly connected placement rack (10) inside the collection container (8), and a Lugo reagent container (11) on the placement rack (10).

2. The device for quantitative collection of phytoplankton in turbid water according to claim 1, characterized in that: The bottom of the water storage tank (6) and the collection container (8) are provided with a fixed support base (14).

3. The device for quantitative collection of phytoplankton in turbid water according to claim 1, characterized in that: The centrifugal filter (3) is provided with a flow guide baffle (15) at the bottom.

4. The device for quantitative collection of phytoplankton in turbid water according to claim 1, characterized in that: The centrifugal filter (3) is equipped with a detachable filter screen (4).

5. The device for quantitative collection of phytoplankton in turbid water according to claim 1, characterized in that: The surface of the placement rack (10) is provided with a protective cover (12) on the outside of the Lugo reagent container (11).

6. The device for quantitative collection of phytoplankton in turbid water according to claim 1, characterized in that: The liquid container (1), water tank (6) and collection container (8) are all equipped with transparent observation plates (13).

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