One-time lossless graded collection device for plankton in ship ballast water

Abstract

The utility model discloses a one-time lossless grading collection device for plankton in ship ballast water. The collecting device comprises a water bucket, a water inlet assembly, a water filtering frame I, a water filtering frame II, an annular bearing plate I fixedly arranged on the water filtering frame I in a sleeving mode, an annular bearing plate II fixedly arranged on the water filtering frame II in a sleeving mode, and a top plate fixedly arranged on the top of the water filtering frame II in a covering mode. A bolting-silk net I (with the inner diameter of 10 microns) is fixedly coated on the side surface of the water filtering frame I, a bolting-silk net II (with the inner diameter of 50 microns) is fixedly coated on the side surface of the water filtering frame II, and the mesh size of the bolting-silk net I is smaller than that of the bolting-silk net II. The annular bearing plate I is arranged on the water bucket in a covering manner, and the annular bearing plate II is arranged on the water filtering frame I in a covering manner. The plankton collecting device is simple in structure, flexible to disassemble and assemble, convenient to operate and efficient, indication planktons of two sizes (larger than or equal to 50 microns and larger than or equal to 10-50 microns) which are detected according to IMO requirements in ship ballast water can be collected at a time, and loss of the planktons is avoided to the maximum extent in the whole collecting process.

Description

Technical Field

[0001] The utility model relates to the technical field of ship ballast water treatment, in particular to a one-time non-destructive classification and collection device for ship ballast water plankton. Background Art

[0002] Ship ballast water refers to the water and suspended matter added to the ship to control the ship's heel, trim, draft, stability or stress. Since the plankton in the ship's ballast water will invade the marine ecological environment, it must be treated before discharge. In order to effectively treat the ship's ballast water, it is necessary to collect the plankton in the ship's ballast water for biological lethality experiments, such as using the principle of strong electric field discharge to produce hydroxyl free radicals, which kill harmful microorganisms in the ship's ballast water in the system.

[0003] The traditional method is to directly use a sieve to collect the ship's ballast water to collect plankton. Since the entire collection space is artificially supported and the collection port is exposed to the outside, there is a problem of loss. In addition, plankton of corresponding size must be collected twice, which is inefficient. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide a one-time non-destructive classification collection device for plankton in ship ballast water to achieve one-time collection of plankton in ship ballast water without loss.

[0005] A one-time non-destructive classification and collection device for plankton in ship ballast water, comprising:

[0006] bucket;

[0007] A water filter frame I suspended in the water bucket has a side surface covered with a sieve mesh I with a pore size of 10 μm;

[0008] The filter frame II is suspended in the filter frame I, and a sieve mesh II with a pore size of 50 μm is fixed on its side surface;

[0009] An annular load-bearing plate I is fixedly mounted on the water filter frame I, and its cover is mounted on the water bucket; and

[0010] The annular load-bearing plate II is fixedly sleeved on the water filter frame II, and its cover is arranged on the water filter frame I.

[0011] In one of the embodiments, a drainage pipe is fixedly installed and penetrates through the corresponding side wall of the bucket.

[0012] Furthermore, the water filter frame I and the water filter frame II are both truncated cone structures that are wide at the top and narrow at the bottom, and a conduit is fixedly installed at the bottom of the water filter frame I and the water filter frame II.

[0013] In one embodiment, valves are installed on the drain pipe and the conduit.

[0014] In one embodiment, a clamping groove for adapting to the bucket mouth is formed on the annular load-bearing plate I, and the annular load-bearing plate I is detachably installed at the top of the bucket through the clamping groove.

[0015] In one embodiment, a clamping groove for adapting to the water filter rack II is formed on the annular load-bearing plate II, and the annular load-bearing plate II is detachably installed at the top of the water filter rack I through the clamping groove.

[0016] In one embodiment, the collecting device further includes a water inlet assembly for quantitatively sending the ship's ballast water into the bucket, and a top plate fixedly covering the top of the water filter rack II.

[0017] Furthermore, the water inlet assembly includes a water pump, a flow meter, three water pipes, and a solenoid valve installed on one of the water pipes; a pipe sleeve for adapting to the water pipe is fixedly installed through the center position of the top plate.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows: the collecting device has a simple structure, is flexible in disassembly and assembly, convenient and efficient in operation, can realize the one-time collection of two sizes (≥50μm and ≥10μm - 50μm) of indicator plankton required to be detected in the ship's ballast water by IMO, and the whole collection process is carried out in a relatively independent space, avoiding the loss of plankton to the greatest extent. Description of the Drawings

[0019] Figure 1 The figure shows a schematic structural diagram of a one-time non-destructive grading collecting device for plankton in ship's ballast water provided by the present utility model.

[0020] Figure 2 As shown Figure 1 is a longitudinal sectional view, and the arrow in the figure indicates the water flow direction.

[0021] Description of the Main Component Symbols

[0022] 1. Bucket; 2. Water inlet assembly; 3. Water filter rack I; 4. Water filter rack II; 5. Sieve silk net I; 6. Sieve silk net II; 7. Annular load-bearing plate I; 8. Annular load-bearing plate II; 9. Top plate.

[0023] The above description of the main component symbols further elaborates the present utility model in conjunction with the drawings and specific embodiments. Detailed Embodiments

[0024] The present utility model will be described in detail below with reference to the drawings.

[0025] Please refer to Figure 1-2, this embodiment provides a device for the one-time non-destructive hierarchical collection of plankton in ship ballast water, which includes a water bucket 1, a water inlet assembly 2 for quantitatively delivering ship ballast water to the water bucket 1, a water filtration rack I 3 suspended in the water bucket 1, a water filtration rack II 4 suspended in the water filtration rack I 3, an annular load-bearing plate I 7 fixedly sleeved on the water filtration rack I 3, an annular load-bearing plate II 8 fixedly sleeved on the water filtration rack II 4, and a top plate 9 fixedly covered on the top of the water filtration rack II 4.

[0026] The annular load-bearing plate I 7 covers the water bucket 1, and a clamping groove for adapting to the bucket mouth of the water bucket 1 is opened on the annular load-bearing plate I 7, and the annular load-bearing plate I 7 is detachably installed at the top of the water bucket 1 through the clamping groove. The annular load-bearing plate II 8 covers the water filtration rack I 3, and a clamping groove for adapting to the water filtration rack II 4 is opened on the annular load-bearing plate II 8, and the annular load-bearing plate II 8 is detachably installed at the top of the water filtration rack I 3 through the clamping groove. In this embodiment, the water filtration rack I 3 is clamped on the water bucket 1 through the annular load-bearing plate I 7, and the water filtration rack II 4 is clamped on the water filtration rack I 3 in combination with the annular load-bearing plate II 8, so that the collection device is a combined structure, which can be flexibly disassembled and assembled, facilitating the subsequent removal of plankton.

[0027] A screen mesh I 5 is fixedly covered on the side surface of the water filtration rack I 3, and a screen mesh II 6 is fixedly covered on the side surface of the water filtration rack II 4. The screen mesh I 5 and the screen mesh II 6 are used to intercept plankton. In this embodiment, the mesh size of the screen mesh I 5 is 10 μm and the mesh size of the screen mesh II 6 is 50 μm as an example for illustration. In this embodiment, the water filtration rack I 3 and the screen mesh I 5 form a filtering body to intercept plankton of 50 μm to 10 μm, and the water filtration rack II 4 and the screen mesh II 6 form a filtering body to intercept plankton of 50 μm and above. In this embodiment, through the nested structure of the two filtering bodies, the hierarchical interception of plankton in ship ballast water can be realized, and the one-time collection of plankton in ship ballast water can be achieved. Compared with the traditional mode of directly collecting plankton by holding a screen mesh to receive water, the collection device of this embodiment conducts the entire collection process in a relatively independent space, avoiding the loss of plankton to the greatest extent. Moreover, there is no need to collect plankton of corresponding sizes in two times, and the collection efficiency is high, which facilitates the subsequent research on treating ship ballast water through plankton lethality experiments.

[0028] The water inlet assembly 2 includes a water pump, a flow meter, three water pipes, and a solenoid valve installed on one of the water pipes. A pipe sleeve for adapting to the water pipe is fixedly installed through the center position of the top plate 9. In this embodiment, ship ballast water is quantitatively delivered to the water bucket 1 through the water inlet assembly 2 for the collection of plankton. In this embodiment, 1 m of water is delivered at a time 3Taking the ballast water as an example, the specific water intake process is as follows: Start the water pump to extract the ship's ballast water, and the ship's ballast water is conveyed to the water bucket 1. When the flowmeter measures the real-time water intake volume to be 1 m 3 ³, the solenoid valve closes and the water pump stops, thus realizing quantitative water intake. It should be noted that the coordinated control among the solenoid valve, the flowmeter and the water pump is a mature existing technology and will not be elaborated here.

[0029] Both the water filtration rack I 3 and the water filtration rack II 4 are frustum-shaped structures that are wider at the top and narrower at the bottom, and conduits are fixedly installed at the bottoms of the water filtration rack I 3 and the water filtration rack II 4. At the corresponding side wall position of the water bucket 1, a drain pipe is fixedly installed through, and valves are installed on both the drain pipe and the conduit. In this embodiment, after the collection is completed, the water filtration rack I 3 and the water filtration rack II 4 are successively removed, pure water is fed into the water filtration rack I 3 and the water filtration rack II 4 respectively, and the valves are opened so that the corresponding plankton is washed into the experimental collection tank (not shown in the figure).

[0030] In summary, compared with the traditional measures for collecting plankton in ship ballast water, the collection device of this embodiment has the following advantages: The collection device of this embodiment has a simple structure, is flexible in disassembly and assembly, convenient and efficient in operation, and can realize the one-time collection of two sizes (≥50 μm and ≥10 μm - 50 μm) of indicator plankton required to be detected by IMO in ship ballast water. The entire collection process is carried out in a relatively independent space, minimizing the loss of plankton to the greatest extent.

[0031] For the naming of each component involved, the function described in the specification is used as the naming standard, and is not limited by the specific nouns used in this utility model. Those skilled in the art can also choose other nouns to describe the names of the various components of this utility model.

Claims

1. A disposable non-destructive hierarchical collection device for plankton in ship ballast water, characterized in that, Comprising: A water bucket (1); A water filter rack I (3) suspended in the water bucket (1), with a screen silk net I (5) with a pore size of 10 μm fixedly covered on its side; A water filter rack II (4) suspended in the water filter rack I (3), with a screen silk net II (6) with a pore size of 50 μm fixedly covered on its side; An annular load-bearing plate I (7) fixedly sleeved on the water filter rack I (3), which covers the water bucket (1); And An annular load-bearing plate II (8) fixedly sleeved on the water filter rack II (4), which covers the water filter rack I (3).

2. The disposable non-destructive hierarchical collection device for plankton in ship ballast water according to claim 1, wherein A drain pipe is fixedly installed through the corresponding side wall position of the water bucket (1).

3. The disposable non-destructive hierarchical collection device for plankton in ship ballast water according to claim 2, characterized in that, Both the water filter rack I (3) and the water filter rack II (4) are frustum-shaped structures that are wider at the top and narrower at the bottom, and a conduit is fixedly installed at the bottom of the water filter rack I (3) and the water filter rack II (4).

4. A disposable non-destructive hierarchical collection device for plankton in ship ballast water according to claim 3, characterized in that, Valves are installed on both the drain pipe and the conduit.

5. The one-time non-destructive hierarchical collection device for plankton in ship ballast water according to claim 1, characterized in that A clamping groove for adapting to the bucket mouth of the water bucket (1) is formed on the annular load-bearing plate I (7), and the annular load-bearing plate I (7) is detachably installed at the top of the water bucket (1) through the clamping groove.

6. The disposable non-destructive hierarchical collection device for plankton in ship ballast water according to claim 1, wherein A clamping groove for adapting to the water filter rack II (4) is formed on the annular load-bearing plate II (8), and the annular load-bearing plate II (8) is detachably installed at the top of the water filter rack I (3) through the clamping groove.

7. A one-time non-destructive grading collection device for plankton in ship ballast water according to claim 1, characterized in that, The collection device further includes an inlet assembly (2) for quantitatively delivering the ship's ballast water to the water bucket (1), and a top plate (9) fixedly covering the top of the water filter rack II (4).

8. The one-time non-destructive hierarchical collection device for plankton in ship ballast water according to claim 7, characterized in that, The inlet assembly (2) includes a water pump, a flow meter, three water pipes, and a solenoid valve installed on one of the water pipes; A pipe sleeve for adapting to the water pipe is fixedly installed through the center position of the top plate (9).

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