Efficient separation type ecological planktonic animal and plant collection net

Abstract

The invention relates to the field of ecological environment monitoring production, in particular to an efficient separation type ecological planktonic animal and plant collecting net which comprises a frame, the middle of the frame is provided with a first-layer net used for intercepting large sundries, and the top of the first-layer net is provided with a lifting hook. The bottom second-layer net is used for intercepting phytoplankton, the third-layer net located on the same axis with the inner side of the second-layer net is used for intercepting zooplankton, rotating force is generated through the propellers under the action of water flow, and the auger push plate is made to be of a conical structure and rotate on the inner side face of the third-layer net. One end of the corrugated plate on the outer side inclines along the inner side face of the third layer of net, plankton can be pushed to move in a dispersed mode to avoid local accumulation and blockage during rotation, the plankton can be accurately intercepted by means of component force, and the wave trough positions of the three corrugated plates are not located on the same horizontal plane to generate a staggered stirring effect, so that filtering is more comprehensive and uniform.

Description

Technical Field

[0001] The invention relates to the field of ecological environment monitoring production, in particular to a highly efficient separation type ecological floating plant and animal collection net. Background Art

[0002] In ecological environment monitoring, monitoring of water ecological conditions is extremely critical. For various water bodies such as rivers, lakes, and oceans, phytoplankton is an important indicator organism. The species and quantity of phytoplankton are a direct reflection of the nutritional status of the water body. The massive reproduction of phytoplankton such as blue-green algae is often a significant signal of eutrophication of water bodies. By monitoring phytoplankton, it is possible to effectively determine whether the water quality is polluted. Therefore, it is necessary to collect phytoplankton samples through an efficient separation ecological phytoplankton collection net, and then carry out species identification and quantity statistics, so as to accurately determine whether the water body is in a eutrophic state, and then effectively assess the degree of water pollution.

[0003] The utility model of Chinese patent application No. 202123077305.7 discloses an integrated plankton collection net, including a steel ring, a preliminary filter, a second filter, a second collection box, a first filter and a first collection box. This technical solution can realize the simultaneous capture of phytoplankton and zooplankton without the need for multiple sampling personnel or repeated operations. The operation is simple, time-saving and labor-saving integrated plankton collection net;

[0004] However, in actual use, when plankton and water impact the conical structure on the top of the first filter, the conical structure will be deformed due to the impact force of the water flow and the reaction force of the object. Especially in the scooping process, if the scooping speed is fast or the water flow is turbulent, the impact force will cause the top of the conical structure to sink in the opposite direction, thereby forming a reverse conical structure. Since the collection point of the reverse conical structure and the inlet end point of the second collection box are not in the same horizontal direction, it is difficult for the zooplankton to enter the second collection box, so that the zooplankton cannot effectively pass through the second filter and fall into the second collection box, which will lead to The number of zooplankton collected is less than expected, which affects the collection efficiency of the collection net for zooplankton. In addition, the mixing of plankton entering the reverse cone structure will affect the statistical number of phytoplankton. Secondly, when water and zooplankton enter the first filter through the second filter, due to the cone-shaped structure of the second filter, the zooplankton will collide and rub against the surface of the second filter. At the same time, the characteristics of the plankton itself (such as sticky substances on the surface) and some impurities that may exist in the water will increase the adhesion of zooplankton to the surface of the second filter, which will then clog the mesh of the filter and reduce the collection efficiency of zooplankton and plants.

[0005] Therefore, it is necessary to propose an efficient separation type ecological phytoplankton collection net to solve the above technical problems. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides a highly efficient separation type ecological phytoplankton collection net, which solves the technical problems that the conical structure of the first filter is deformed to form a reverse conical structure due to rapid water flow, which obstructs the entry of zooplankton into the box, the mixing of plankton affects the phytoplankton quantity statistics, and the zooplankton is easily adhered to the surface of the conical second filter, blocking the mesh holes, thereby reducing the collection efficiency of phytoplankton.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] The technical solution adopted by the present invention to solve the technical problem is: an efficient separation type ecological phytoplankton collection net, comprising a frame, a first layer of net for intercepting large debris is arranged in the middle of the frame, a hook is arranged on the top of the first layer of net, a second layer of net for intercepting phytoplankton is arranged at the bottom of the frame, the second layer of net is in a cone-shaped structure, a third layer of net on the same axis is arranged at the lower part of the second layer of net, the third layer of net is used to intercept zooplankton, and a collection component is arranged below the second layer of net and the third layer of net, which is used to collect the filtered phytoplankton in layers;

[0009] A rotating layering component is arranged on the top of the third layer of the net and is used to quickly separate and filter the floating animals and plants;

[0010] The high-pressure jet assembly is arranged on the top of the third layer of net and is used for quickly cleaning the plankton and debris on the inner surface of the third layer of net.

[0011] Preferably, the rotating layered assembly comprises:

[0012] A fixing ring, which is installed at the middle and lower part of the second layer of net;

[0013] A rotating ring, which is rotatably connected to the inner ring of the fixed ring;

[0014] A matching frame, which is fixedly mounted on the inner ring of the rotating ring and has a herringbone structure;

[0015] A rotating rod, which is fixedly installed at the middle and lower part of the matching frame;

[0016] A Jiaolong push plate, which is fixedly mounted on the outside of the rotating rod and has a cone-shaped structure, wherein the cone-shaped structure of the Jiaolong push plate is on the inner side of the third layer of the net;

[0017] A propeller is disposed below the collecting assembly and fixedly connected to the bottom of the rotating rod;

[0018] The filter plate is installed below the second layer of net and the third layer of net, and the lower end of the rotating rod rotates through the middle of the filter plate.

[0019] Preferably, three corrugated plates in a ring array are installed on the outer side of the Jiaolong push plate, and one end of the corrugated plate is inclined along the inner side surface of the third layer of mesh.

[0020] Preferably, the trough positions of the three corrugated plates are not on the same horizontal plane.

[0021] Preferably, the high-pressure injection assembly comprises:

[0022] A micro water pump installed inside the propeller;

[0023] A water inlet pipe, one end of which is plugged into the outlet of the micro water pump, and one end of the water inlet pipe has a conical longitudinal section with a water inlet hole formed inside;

[0024] A driving tube is installed inside the rotating rod, the lower end of the driving tube is plugged into the water outlet of the micro water pump, a water inlet groove connected to the driving tube is provided inside the matching frame, and an arc groove connected to the water inlet groove is provided inside the rotating ring;

[0025] There are three high-pressure nozzles, which are fixedly installed below the rotating ring and communicate with the arc groove in the rotating rod;

[0026] The jet ports of the high-pressure nozzles are arranged obliquely along the inner side surface of the third layer of mesh.

[0027] Preferably, three scraping strips are installed outside the propeller and between the spaced propellers. The scraping strips are made of a certain elastic material. Scraper holes are opened on the three scraping strips. The scraping strips are inclined along the inner side surface of the third layer of mesh.

[0028] Preferably, the scraper holes of the three scraper strips are located at different positions on the same water surface.

[0029] Preferably, the collecting assembly comprises:

[0030] An outer ring collecting member is installed below the filter plate, and a first collecting groove is provided on the inner side of the outer ring collecting member;

[0031] An inner ring collecting member is installed inside the outer ring collecting member, and a fixing sleeve rotatably connected to the rotating rod is installed in the middle of the top of the inner ring collecting member, and a second collecting groove is opened on the top of the inner ring collecting member and on one side of the outer edge of the fixing sleeve;

[0032] There are two drain pipes, one of which is installed at the lowermost end of the outer ring collecting member and is connected to the first collecting groove, and the other is fixedly installed on one side of the inner ring collecting member and is connected to the second collecting groove.

[0033] The present invention has achieved the following beneficial effects:

[0034] (1) The present invention sets a rotating layered component, that is, the second layer of net at the bottom is used to intercept phytoplankton, and the third layer of net located on the same axis inside the second layer of net is used to intercept zooplankton. The propeller generates a rotating force under the action of water flow, which causes the Jiaolong push plate therein to have a cone-shaped structure and rotate on the inner side of the third layer of net. One end of the corrugated plate on the outside is inclined along the inner side of the third layer of net. During rotation, it can not only push the plankton to disperse and move to avoid local accumulation and blockage, but also accurately intercept zooplankton with the help of the component force. The staggered stirring effect generated by the trough positions of the three corrugated plates not being in the same horizontal plane makes the filtration more comprehensive and uniform. Under the action of gravity, the plankton enters the collection component from the inside of the filter plate to achieve layered collection, which can solve the problems of reduced zooplankton collection efficiency and the influence of plankton mixing on the phytoplankton quantity statistics.

[0035] (2) The present invention provides a high-pressure jet assembly, which can use the power generated by the water flow to start the micro-water pump during the collection process, and transmit external water to the high-pressure nozzle through a specially structured water inlet pipe and a driving pipe, so as to comprehensively clean the inner surface of the third-layer net, remove the sticky substances of the plankton itself, the zooplankton adhesion caused by impurities in the water, or other debris adhesion. In addition, since the nozzle rotates with the rotating ring, the jet angle changes continuously, thereby avoiding cleaning dead corners, maintaining the good filtering performance of the third-layer net, and improving the collection efficiency. The scraper bar on the outside of the propeller rotates under the drive of the propeller, and can not only deform to adapt to the water flow environment and fit the net surface according to the contact between the water flow and the net surface, but also can generate an oblique scraping force through the inclined surface to clean the plankton and debris. At the same time, the scraper hole position allows water to pass through to generate multi-angle water flow to flush the net surface in all directions, further improving the cleaning efficiency of plankton and debris, and preventing the mesh from being blocked, thereby improving the collection efficiency of the entire collection net for phytoplankton. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0037] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0038] Figure 2 It is a longitudinal cross-sectional view of the second layer of the net and the third layer of the net of the present invention;

[0039] Figure 3 for Figure 2 A partial enlarged view of middle A;

[0040] Figure 4 for Figure 2 A partial enlarged view of B in the middle;

[0041] Figure 5 It is a schematic diagram of the Jiaolong push plate of the present invention.

[0042] Numbers in the figure: 1. frame; 11. first layer of net; 12. hook; 13. second layer of net; 14. third layer of net; 15. collecting assembly; 151. outer ring collecting piece; 152. inner ring collecting piece; 153. drain pipe; 2. rotating layering assembly; 21. fixed ring; 22. rotating ring; 23. matching frame; 24. rotating rod; 25. Jiaolong push plate; 26. propeller; 27. filter plate; 28. corrugated plate; 211. high-pressure injection assembly; 212. micro water pump; 213. water inlet pipe; 214. drive pipe; 215. high-pressure nozzle; 216. scraper. DETAILED DESCRIPTION

[0043] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0044] like Figure 1-Figure 2 As shown, a highly efficient separation ecological phytoplankton collection net comprises a frame 1, a first layer of net 11 for intercepting large debris is arranged in the middle of the frame 1, a hook 12 is arranged on the top of the first layer of net 11, when in use, the collection net is put into water through the hook 12, during the collection process, water carrying phytoplankton first contacts the first layer of net 11 in the middle of the frame 1, the first layer of net 11 can intercept large debris such as branches, large plastic fragments, etc., to prevent them from entering the subsequent filtering layer and causing blockage or interference, a second layer of net 13 for intercepting phytoplankton is arranged at the bottom of the frame 1, the second layer of net 13 is a cone-shaped structure, a third layer of net 14 on the same axis is arranged at the lower part of the second layer of net 13, the third layer of net 14 is used to intercept zooplankton, and a collecting assembly 15 is arranged below the second layer of net 13 and the third layer of net 14, which is used to collect the filtered phytoplankton in layers;

[0045] Then the water flow and plankton will reach the second layer of net 13 with a cone-shaped structure, while the zooplankton can continue to flow downward, pass through the second layer of net 13 and reach the third layer of net 14. The mesh size and structural characteristics of the third layer of net 14 enable it to intercept the zooplankton, and the second layer of net 13 located on the same axis outside the third layer of net 14 intercepts the phytoplankton, which falls into the corresponding collection components 15 below under the action of gravity, thereby realizing the layered collection of phytoplankton and animals, greatly improving the pertinence and accuracy of sample collection.

[0046] like Figure 2-Figure 5As shown, the rotating layered component 2 is arranged on the top of the third layer of net 14, and is used to quickly separate and filter the floating animals and plants; the rotating layered component 2 includes a fixed ring 21, which is installed in the middle and lower part of the second layer of net 13; a rotating ring 22, which is rotatably connected to the inner ring of the fixed ring 21; a matching frame 23, which is fixedly installed on the inner ring of the rotating ring 22 and has a herringbone structure; a rotating rod 24, which is fixedly installed in the middle and lower part of the matching frame 23; a dragon push plate 25, which is fixedly installed on the outer side of the rotating rod 24 and has a cone shape Structure, the conical structure of the dragon push plate 25 is on the inner side of the third layer of net 14; the propeller 26 is arranged below the collecting component 15 and is fixedly connected to the bottom of the rotating rod 24. The propeller 26 uses the rotating force generated by the water flow to drive the entire rotating layered component 2 to work, without the need for an additional power source, which is energy-saving and environmentally friendly and can continue to play a role during the collection process; the filter plate 27 is installed below the second layer of net 13 and the third layer of net 14, and the lower end of the rotating rod 24 rotates through the middle of the filter plate 27.

[0047] It should be noted that when using the collection net, the external tool is first connected to the hook 12, and then the collection net is put into the water and moved. After the frame 1 enters the water, water and plankton pass through each layer of the structure in turn. When the plankton enters the third layer of the net 14, the propeller 26 generates a rotational force under the action of the water flow. The rotational force is transmitted to the dragon push plate 25 through the rotating rod 24, so that the dragon push plate 25 rotates on the inner side of the third layer of the net 14. The conical structure of the dragon push plate 25 and its rotational movement can push the plankton into the third layer of the net 14. The plankton is stirred and pushed, causing the plankton to separate quickly inside the third layer of net 14. In this process, the first layer of net 11 located in the middle of the frame 1 intercepts large debris, and the water flow and plankton then reach the third layer of net 14 with a cone-shaped structure and the second layer of net 13 on the same axis. Phytoplankton is intercepted by the second layer of net 13, and zooplankton passes through the third layer of net 14 and is intercepted. When the collection net is scooped out of the water, under the action of gravity, the plankton enters the collection assembly 15 from the inside of the filter plate 27 to achieve layered collection;

[0048] It is worth noting that since zooplankton is usually larger than phytoplankton, the filter holes through which zooplankton passes through the filter plate 27 are larger than the filter holes through which phytoplankton passes through the filter plate 27, so that plankton can smoothly pass through the filter plate 27 and enter the interior of the collection component 15.

[0049] The setting of the rotating stratification component 2 greatly improves the efficiency and accuracy of plankton separation. The rotation of the Jiaolong push plate 25 in the third layer of net 14 can effectively prevent zooplankton from gathering, adhering or clogging the mesh in the third layer of net 14, so that zooplankton can be intercepted and collected more quickly and accurately. At the same time, it also ensures the effective interception of phytoplankton on the second layer of net 13, improves the targetedness of sample collection, and is conducive to the subsequent research and analysis of different types of plankton.

[0050] like Figure 2 As shown, three corrugated plates 28 in a ring array are installed on the outer side of the dragon push plate 25, and one end of the corrugated plate 28 is inclined along the inner side surface of the third layer of net 14.

[0051] When the propeller 26 drives the rotating rod 24 to rotate under the action of the water flow, and then the Jiaolong push plate 25 rotates, the three corrugated plates 28 installed in a circular array on the outside of the Jiaolong push plate 25 also rotate accordingly. Since one end of the corrugated plate 28 is inclined along the inner side of the third layer of net 14, during the rotation process, the corrugated plate 28 will produce a spiral propulsion effect on the plankton. On the one hand, the plankton is pushed along the inner side of the third layer of net 14, so that the plankton is better dispersed and moved in the net, and local accumulation and blockage are avoided; on the other hand, the inclined corrugated plate 28 causes the plankton to be subjected to a component force toward the mesh of the third layer of net 14 when being pushed, which helps to intercept smaller zooplankton more accurately on the third layer of net 14, instead of flowing disorderly in the net with the water flow. The plankton can be more evenly distributed on the third layer of net 14, reducing the blockage of the mesh or the omission of some zooplankton due to excessive local plankton, and improving the accuracy and comprehensiveness of the third layer of net 14 to intercept zooplankton.

[0052] The trough positions of the three corrugated plates 28 are not on the same horizontal plane.

[0053] Since the troughs of the three corrugated plates 28 are not on the same horizontal plane, they will produce a staggered stirring effect during rotation. The staggered stirring effect can effectively stir and push plankton at different heights inside the third layer of net 14, making the filtration process of plankton in the third layer of net 14 more comprehensive and uniform.

[0054] like Figure 3-Figure 5As shown, a high-pressure jet assembly 211 is arranged on the top of the third layer of net 14, and is used to quickly clean up plankton and debris on the inner surface of the third layer of net 14. The high-pressure jet assembly 211 includes a micro-pump 212, which is installed inside the propeller 26; a water inlet pipe 213, one end of which is plugged into the outlet end of the micro-pump 212, and the longitudinal section of one end of the water inlet pipe 213 is a conical structure, and a water inlet hole is opened inside it; a drive pipe 214, which is installed inside the rotating rod 24, and the lower end of the drive pipe 214 is plugged into the outlet end side of the micro-pump 212, and the inside of the matching frame 23 is provided with a water inlet groove connected to the drive pipe 214, and the inside of the rotating ring 22 is provided with an arc groove connected to the water inlet groove; three high-pressure nozzles 215 are provided, which are fixedly installed below the rotating ring 22 and are connected to the arc groove in the rotating rod 24, and the jet ports of the high-pressure nozzles 215 are arranged obliquely along the inner side of the third layer of net 14.

[0055] When the micro water pump 212 is started, the external water enters through the water inlet pipe 213 under the suction of the water pump. The longitudinal section of one end of the water inlet pipe 213 is a conical structure and a water inlet hole is opened inside. After the water enters, it flows into the driving pipe 214. The driving pipe 214 transmits the water through the channel inside the rotating rod 24. Due to the special connection structure between the matching frame 23 and the rotating ring 22, that is, the water inlet groove inside the matching frame 23 and the arc groove inside the rotating ring 22, the water is finally transported to three high-pressure nozzles 215. The high-pressure nozzles 215 are fixed under the rotating ring 22 and connected to the arc groove, so as to spray high-pressure water on the surface of the third layer of the net 14. During the operation of the collection net, whether it is the sticky substances of the plankton itself or the impurities in the water that cause the plankton to adhere to the third layer of the net 14 If there are any debris on the surface of the third layer of net 14, or other debris attached to the net surface, the impact of the high-pressure water flow can wash them away, and because the nozzle is located at the top of the third layer of net 14, the net surface can be cleaned more comprehensively. When the rotating layered component 2 is in use, the rotating ring 22 is always in a rotating state in the water, and the high-pressure nozzle 215 will also make a circular motion accordingly, which causes the high-pressure water ejected from the high-pressure nozzle 215 to continuously change the injection angle on the surface of the third layer of net 14, so that every corner of the third layer of net 14 can be cleaned to avoid cleaning dead corners. This comprehensive coverage injection effect can effectively and quickly clean up plankton and debris from the inner surface of the third layer of net 14.

[0056] like Figure 4As shown, the collecting assembly 15 includes: an outer ring collecting piece 151, which is installed below the filter plate 27, and a first collecting groove is opened on the inner side of the outer ring collecting piece 151; an inner ring collecting piece 152, which is installed inside the outer ring collecting piece 151, and a fixing sleeve rotatably connected to the rotating rod 24 is installed in the middle of the top of the inner ring collecting piece 152, and a second collecting groove is opened on the top of the inner ring collecting piece 152 and on one side of the outer edge of the fixing sleeve; two drain pipes 153 are provided, one of which is installed at the lowermost end of the outer ring collecting piece 151 and is connected to the first collecting groove, and the other is fixedly installed on one side of the inner ring collecting piece 152 and is connected to the second collecting groove, and the drain pipe 153 is arranged to be inclined downward to facilitate better discharge of phytoplankton.

[0057] During the collection process, zooplankton can pass through the third layer of net 14 and fall into the top of the inner ring collecting member 152 through the filter plate 27, and then roll or slide into the second collecting tank under the action of gravity, while phytoplankton is intercepted by the second layer of net 13 and enters the first collecting tank of the outer ring collecting member 151 through the filter plate 27 under the action of gravity. When the collected plankton samples need to be taken out, the drain pipe 153 connected to the first collecting tank can discharge the phytoplankton in the first collecting tank, and the drain pipe 153 connected to the second collecting tank can discharge the zooplankton in the second collecting tank, thereby realizing the layered collection and separate export of phytoplankton and zooplankton.

[0058] like Figure 5 As shown, three scraping strips 216 are installed outside the propeller 26 and between the spaced propellers 26 . The scraping strips 216 are made of a certain elastic material. Scraper holes are opened on the three scraping strips 216 . The scraping strips 216 are inclined along the inner side surface of the third layer of mesh 14 .

[0059] Since three scraping strips 216 are installed outside the propeller 26 and between the spaced propellers 26, the rotation of the propeller 26 will drive the scraping strips 216 to move together. The scraping strips 216 are made of a certain elastic material. During the rotation process, on the one hand, they can be appropriately deformed according to the impact force of the water flow and the force when contacting the inner side of the third layer of net 14, so as to better adapt to the water flow environment and fit the net surface. On the other hand, the scraping strips 216 are inclined along the inner side of the third layer of net 14. When rotating, their inclined surfaces will generate oblique scraping force on plankton and debris that may be attached to the net surface.

[0060] At the same time, scraper holes are opened on the scraper bar 216. During the rotation process, the water flow can pass through these scraper holes. This will not cause excessive obstruction to the water flow, ensuring that the propeller 26 can continue to rotate normally under the action of the water flow. The turbulence and impact force generated when the water flows through the scraper holes can be used to further enhance the disturbance effect on plankton and debris, making it easier to detach from the inner side of the third layer of net 14.

[0061] The scraper holes of the three scraper strips 216 are located at different positions on the same water surface.

[0062] Since the scraper holes are located at different positions on the same water surface, when the propeller 26 drives the scraper bar 216 to rotate, water flows through the holes at different positions to generate water flows in different directions. These multi-angle water flows can scour the inner side of the third layer of net 14 in all directions, greatly improving the cleaning efficiency of plankton and debris.

[0063] The working principle of the present invention is: the collection net for efficient separation of ecological phytoplankton is first put into the water through the hook 12 and moved during use. The water and plankton first contact the first layer of net 11 in the middle of the frame 1. The first layer of net 11 can intercept large debris such as branches and large plastic fragments, so that the subsequent filtration layer will not be blocked or interfered. Then, the water flow and plankton reach the second layer of net 13 with a cone-shaped structure. The zooplankton can continue to move downward with the water flow, pass through the second layer of net 13 and reach the third layer of net 14. At this time, the second layer of net 13 is located on the same axis outside the third layer of net 14, and the plankton are mixed in the third layer of net 14. Since the propeller 26 generates a rotational force under the action of the water flow, the rotational force of the propeller 26 is passed through the The force is transmitted to the Jiaolong push plate 25 through the rotating rod 24, so that the Jiaolong push plate 25 rotates on the inner side of the third layer of net 14. At the same time, the three corrugated plates 28 installed in a circular array on the outside of the Jiaolong push plate 25 also rotate accordingly. Since one end of the corrugated plate 28 is inclined along the inner side of the third layer of net 14, during the rotation process, the corrugated plate 28 will have a spiral propulsion effect on the plankton. On the one hand, the plankton is pushed along the inner side of the third layer of net 14. On the other hand, the inclined corrugated plate 28 will cause the plankton to receive a component force toward the mesh of the third layer of net 14 when being pushed, which is helpful for the separation and precise interception of the plankton, so that the phytoplankton passes through the third layer of net 14 and enters the second layer of net 13 to be intercepted, while the zooplankton is intercepted in the third layer of net 14.

[0064] Because the troughs of the three corrugated plates 28 are not on the same horizontal plane, they will produce a staggered stirring effect during the rotation process, so that the plankton at different heights inside the third layer of the net 14 can be effectively stirred and pushed, making the filtering process of the plankton in the third layer of the net 14 more comprehensive and uniform;

[0065] Start the micro water pump 212. Under the suction of the water pump, external water enters through the water inlet pipe 213. After entering, the water flows into the drive pipe 214. The drive pipe 214 transmits the water through the channel inside the rotating rod 24. Through the water inlet groove inside the matching frame 23 and the arc groove in the rotating ring 22, the water is finally transported to three high-pressure nozzles 215. The high-pressure nozzles 215 are fixed under the rotating ring 22 and connected to the arc groove. The high-pressure water is sprayed on the surface of the third layer of the net 14 to clean the sticky substances of the plankton itself, the impurities in the water that cause the plankton to adhere to the third layer of the net 14, or other debris attached to the net surface. Since the rotating ring 22 is constantly rotating in the water, the high-pressure nozzles 215 also make circular motions, so that the spraying angle changes continuously;

[0066] The rotation of the propeller 26 will drive the scraper 216 to move together. The scraper 216 is made of elastic material and can be deformed according to the force of the water flow and the contact mesh surface to better adapt to the water flow environment and fit the mesh surface. The scraper 216 is inclined along the inner side of the third layer of net 14. When rotating, its inclined surface will generate oblique scraping force on plankton and debris that may be attached to the mesh surface.

[0067] Zooplankton passes through the third layer of net 14 and falls into the top of the inner ring collection member 152 through the filter plate 27, and then rolls or slides into the second collection tank under the action of gravity. Phytoplankton is intercepted by the second layer of net 13 and enters the first collection tank of the outer ring collection member 151 through the filter plate 27 under the action of gravity.

[0068] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. An efficient separation type ecological phytoplankton collection net, comprising a frame (1), characterized in that: A first layer of net (11) for intercepting large debris is arranged in the middle of the frame (1), a hook (12) is arranged on the top of the first layer of net (11), a second layer of net (13) for intercepting phytoplankton is arranged at the bottom of the frame (1), the second layer of net (13) is in a cone-shaped structure, a third layer of net (14) on the same axis is arranged below the second layer of net (13), the third layer of net (14) is used to intercept zooplankton, and a collection assembly (15) is arranged below the second layer of net (13) and the third layer of net (14) for collecting filtered zooplankton in layers; A rotating layering assembly (2) is arranged on the top of the third layer of net (14) and is used to quickly separate and filter the floating animals and plants; The high-pressure jet assembly (211) is arranged on the top of the third layer of net (14) and is used to quickly clean up plankton and debris on the inner surface of the third layer of net (14).

2. According to claim 1, a highly efficient separation ecological phytoplankton collection net is characterized in that; The rotating layered assembly (2) comprises: A fixing ring (21) installed at the middle and lower part of the second layer of mesh (13); A rotating ring (22) rotatably connected to the inner ring of the fixed ring (21); A matching frame (23) is fixedly mounted on the inner ring of the rotating ring (22) and has a herringbone structure; A rotating rod (24) is fixedly mounted at the middle and lower part of the matching frame (23); A dragon push plate (25) is fixedly mounted on the outside of the rotating rod (24) and has a conical structure. The conical structure of the dragon push plate (25) is on the inner side of the third layer of net (14); A propeller (26) is disposed below the collecting assembly (15) and is fixedly connected to the bottom of the rotating rod (24); A filter plate (27) is installed below the second layer of net (13) and the third layer of net (14), and the lower end of the rotating rod (24) rotates through the middle of the filter plate (27).

3. The highly efficient separation ecological phytoplankton collection net according to claim 2, characterized in that: Three corrugated plates (28) in a ring array are installed on the outer side of the dragon push plate (25), and one end of the corrugated plate (28) is inclined along the inner side surface of the third layer of net (14).

4. The highly efficient separation ecological phytoplankton collection net according to claim 3, characterized in that: The trough positions of the three corrugated plates (28) are not on the same horizontal plane.

5. The highly efficient separation ecological phytoplankton collection net according to claim 2, characterized in that: The high-pressure injection assembly (211) comprises: A micro water pump (212) installed inside the propeller (26); A water inlet pipe (213), one end of which is plugged into the outlet end of the micro water pump (212), and one end of the water inlet pipe (213) has a conical structure in longitudinal section, and a water inlet hole is provided inside the water inlet pipe; A driving tube (214) is installed inside the rotating rod (24), the lower end of the driving tube (214) is plugged into the water outlet side of the micro water pump (212), the matching frame (23) is provided with a water inlet groove connected to the driving tube (214), and the rotating ring (22) is provided with an arc groove connected to the water inlet groove; Three high-pressure spray nozzles (215) are fixedly mounted below the rotating ring (22) and communicate with the arc-shaped groove in the rotating rod (24); The injection ports of the high-pressure nozzle (215) are arranged obliquely along the inner side surface of the third layer of mesh (14).

6. The highly efficient separation ecological phytoplankton collection net according to claim 2, characterized in that: Three scraping strips (216) are installed outside the propeller (26) and between the spaced propellers (26). The scraping strips (216) are made of a certain elastic material. Scraping plate holes are opened on the three scraping strips (216). The scraping strips (216) are inclined along the inner side surface of the third layer of mesh (14).

7. The highly efficient separation ecological phytoplankton collection net according to claim 6, characterized in that: The scraper holes of the three scraper strips (216) are located at different positions on the same water surface.

8. The highly efficient separation ecological phytoplankton collection net according to claim 1, characterized in that; The collecting component (15) comprises: An outer ring collecting member (151) is installed below the filter plate (27), and a first collecting groove is provided on the inner side of the outer ring collecting member (151); An inner ring collecting member (152) is installed inside the outer ring collecting member (151), and a fixing sleeve rotatably connected to the rotating rod (24) is installed in the middle of the top of the inner ring collecting member (152), and a second collecting groove is provided at the top of the inner ring collecting member (152) and on one side of the outer edge of the fixing sleeve; There are two drainage pipes (153), one of which is installed at the lowermost end of the outer ring collecting member (151) and is connected to the first collecting tank, and the other is fixedly installed on one side of the inner ring collecting member (152) and is connected to the second collecting tank.

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