CN210097067U - Runway annular tangential plankton filter equipment - Google Patents

Abstract

The utility model discloses a raceway annular tangential plankton filtering device, which comprises a filter and a circulating pump. The filter comprises a filter housing, a filter element arranged in the filter housing, and an annular racetrack. The filter element is arranged on the annular track. In the runway, the annular runway is arranged in close contact with the outer surface of the filter element. The utility model can complete the filtration of a large amount of water in a short time, and can quickly extract plankton with a particularly low content from the large amount of water, thereby improving the success rate and work efficiency of the plankton filtration and extraction, and meeting the needs of inspection and quarantine.

Description

A runway annular tangential plankton filtering device

technical field

The utility model belongs to the technical field of filtering devices, in particular to a running track annular tangential plankton filtering device.

Background technique

At present, the extraction of plankton in water mostly adopts the method of filter filtration, which is often prone to blockage during the filtration process. This is because the water containing plankton passes through the filter vertically, causing the filter to be suspended in a large amount in the vertical direction. When the biological material is blocked, the filter screen must be backwashed to remove the substances attached to the filter screen every time it is filtered for a period of time, and then it can be filtered again. The repeated backwash process takes up a lot of filtering time, resulting in the extraction of plankton in the water. Very inefficient. Therefore, it is necessary to seek a new filtering method or approach to solve the above problems.

Utility model content

Purpose of the invention: Aiming at the deficiencies of the prior art, the purpose of the present utility model is to provide a runway annular tangential plankton filtering device.

Technical scheme: In order to realize the above-mentioned purpose of the invention, the technical scheme adopted by the present utility model is as follows:

A racetrack annular tangential plankton filtering device includes a filter and a circulating pump, the filter includes a filter housing, a filter element and an annular raceway arranged in the filter housing, the filter element is arranged in the annular racetrack, and the The annular runway is arranged in close contact with the outer surface of the filter element.

Preferably, the filter element and the annular racetrack form a composite body, and waterproof glue is filled between the two ends of the composite body and the inner wall of the filter housing.

Preferably, the annular racetrack is a hollow circular tubular structure, and a spirally coiled groove is arranged on the inner wall of the circular tubular structure.

Preferably, the convex portion forming the groove is in contact with the outer surface of the filter element.

Preferably, one end of the filter housing is provided with a water inlet, the other end is provided with a waste water outlet and a circulation outlet, and the circulation outlet is connected to the water inlet through a circulation pump.

Preferably, the front end of the filter element is communicated with the water inlet, and the rear end of the filter element is provided with a water outlet joint, and the water outlet joint is connected with the waste water outlet.

Preferably, the filter shell is a shell made of PVC or engineering plastics, and the filter element is a filter element made of stainless steel.

Beneficial effect: Compared with the prior art, the utility model has the following advantages:

The utility model is provided with an annular runway. When the water flows rapidly from the annular runway, a force perpendicular to the surface of the filter element will not be generated. Force, water will not stay on the surface of the filter element, so it will not block the filter screen, and there is no need to perform backwashing operations repeatedly. The utility model can complete the filtration of a large amount of water in a short time, and can quickly extract plankton with a particularly low content from the large amount of water, thereby improving the success rate and work efficiency of the plankton filtration and extraction, and meeting the needs of inspection and quarantine.

Description of drawings

Fig. 1 is the schematic diagram of the overall circulation structure of the annular tangential plankton filter device of the runway;

Fig. 2 is a schematic diagram of the overall structure of the filter of the annular tangential plankton filter device of the runway;

Fig. 3 is the dismantling schematic diagram of the annular runway and the filter element of the annular tangential plankton filter device of the runway;

Fig. 4 is a schematic diagram of the structure of the filter of the annular tangential plankton filter device of the racetrack;

Figure 5 is a schematic diagram of the structure of the annular runway of the runway annular tangential plankton filtering device.

Detailed ways

The present invention will be further illustrated below in conjunction with specific examples, which are implemented on the premise of the technical solutions of the present invention. It should be understood that these examples are only used to illustrate the present invention and not to limit the scope of the present invention.

As shown in FIGS. 1-5 , the racetrack annular tangential plankton filtering device of the present application includes a filter 1 and a circulating pump 2 . The filter 1 includes a filter housing 3 , and filter elements 5 and 5 arranged in the filter housing 3 . The annular racetrack 6 and the filter element 5 are arranged in the annular racetrack 6 , and the annular racetrack 6 is arranged in close contact with the outer surface of the filter element 5 .

The filter element 5 and the annular raceway 6 form a composite body, and waterproof glue is filled between the two ends of the composite body and the inner wall of the filter housing 3 to prevent liquid from invading the gap between the inner wall of the filter housing 3 and the annular track.

The filter elements 5 in the filter housing 3 of the present invention are all circular, the annular runway 6 is a hollow circular tubular structure, and a spirally coiled groove 61 is arranged on the inner wall of the circular tubular structure. The convex portion forming the groove 61 is in contact with the outer surface of the filter element 5 .

One end of the filter housing 3 is provided with a water inlet 31 , and the other end is provided with a waste water outlet 32 and a circulation outlet 33 , and the circulation outlet 33 is connected to the water inlet 31 through the circulation pump 2 . The front end of the filter element 5 is communicated with the water inlet 31 , and the rear end of the filter element 5 is provided with a water outlet joint 51 , and the water outlet joint 51 is connected with the waste water outlet 32 .

The filter element shell 3 is a shell made of polyvinyl chloride (PVC) processing or custom-made engineering plastics, and the inner filter element 5 is a filter element made of stainless steel. Polyvinyl chloride has stable physical and chemical properties, is insoluble in water, alcohol, gasoline, and has low gas and water vapor leakage; it has certain chemical resistance at room temperature. Engineering plastics can withstand mechanical stress in a wide temperature range, can be used in harsh chemical and physical environments, have good mechanical properties and dimensional stability, can still maintain their excellent performance at high and low temperature, high strength, high Mechanical modulus, low latent, strong wear resistance and fatigue resistance, the filter housing made by the above method can maintain structural stability for a long time; stainless steel not only has strong chemical stability, but also has sufficient strength and plasticity, and It has stable mechanical properties at a certain high temperature or low temperature, and the filter element made of stainless steel can maintain a stable structure for a long time.

The filtering process of the present invention is as follows: the seawater or fresh water containing plankton enters the composite body formed by the filter element 5 and the annular runway 6 from the water inlet 31 at a certain pressure, and the water is forced by the annular runway 6 to follow the runway with a certain tangential force. Moving forward, because it flows through the filter element in a tangential manner, the force in the vertical direction is small, the filter is not easy to be blocked, the filtered wastewater flows out from the water outlet 31, and the liquid containing plankton that has not been filtered in time Re-enter the water inlet 31 from the circulation outlet 33 through the pump circulation 2 to continue to participate in the filtration.

The above are only the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the principles of the present invention, several improvements and modifications can be made. These improvements and Retouching should also be regarded as the protection scope of the present invention.

Claims (6)

1. A runway annular tangential plankton filter equipment which characterized in that: the filter comprises a filter (1) and a circulating pump (2), wherein the filter (1) comprises a filter shell (3), a filter element (5) and an annular runway (6), the filter element (5) is arranged in the filter shell (3), the annular runway (6) is tightly attached to the outer surface of the filter element (5); the filter element (5) and the annular runway (6) form a combined body, and waterproof glue is filled between the two end parts of the combined body and the inner wall of the filter shell (3).

2. A racetrack annular tangential plankton filtration device according to claim 1, characterized in that: the annular runway (6) is of a hollow round tubular structure, and a spiral winding groove (61) is formed in the inner wall of the round tubular structure.

3. A racetrack annular tangential plankton filtration device according to claim 2, characterized in that: the ridge forming the groove (61) is in contact with the outer surface of the filter element (5).

4. A racetrack annular tangential plankton filtration device according to claim 1, characterized in that: one end of the filter shell (3) is provided with a water inlet (31), the other end of the filter shell is provided with a wastewater outlet (32) and a circulating outlet (33), and the circulating outlet (33) is connected with the water inlet (31) through a circulating pump (2).

5. A racetrack annular tangential plankton filtration device according to claim 1, characterized in that: the front end of filter core (5) and water inlet (31) intercommunication, the rear end of filter core (5) is provided with water connectors (51), water connectors (51) are connected with waste water outlet (32).

6. A racetrack annular tangential plankton filtration device according to claim 1, characterized in that: the filter shell (3) is made of PVC or engineering plastics, and the filter element (5) is made of stainless steel.

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