CN111296373A

CN111296373A - Collector for plankton

Info

Publication number: CN111296373A
Application number: CN202010107554.7A
Authority: CN
Inventors: 朱为菊; 丁兆建; 许环军; 张晓琳
Original assignee: Qiongtai Normal University
Current assignee: Qiongtai Normal University
Priority date: 2020-02-21
Filing date: 2020-02-21
Publication date: 2020-06-19

Abstract

The invention discloses a collector for plankton, which comprises a collecting cover, a water pumping device and a plurality of spherical box bodies nested together, wherein the side wall of each box body is provided with a pressure release valve, a water inlet valve and a water outlet valve, the pressure release valve, the water inlet valve and the water outlet valve are all communicated with the inside and the outside of the box body, the water inlet valves are communicated with each other through a first communicating pipe, the water outlet valves are communicated with each other through a second communicating pipe, the side walls of the first communicating pipe and the second communicating pipe are provided with through holes, a filter screen is arranged in the innermost box body, the water inlet valve of the box body positioned on the outermost layer is communicated with the water pumping device through a second water inlet pipe, the collecting cover is communicated with the water pumping device through a first water inlet pipe, and. The gradient pressure vessel that utilizes a plurality of box bodys to form carries out the pressurize to the plankton that is located the inlayer, and is low to the withstand voltage degree requirement of box body, can carry out the pressurize to the plankton of gathering when gathering in darker water.

Description

Collector for plankton

Technical Field

The invention relates to the technical field of plankton collection, in particular to a collector for plankton.

Background

Plankton refers broadly to floating organisms living in water and lacking effective movement ability, and includes phytoplankton and zooplankton. In the organisms in water areas such as oceans, lakes and rivers, part of the plankton has no swimming ability, and part of the plankton has the swimming ability, but the swimming speed of the plankton is usually slower than the current speed of the ocean itself, so that the plankton can not effectively and flexibly swim in the water. The existing plankton collection is generally collected by adopting a trawl mode, but the trawl mode is not suitable for fixed-point collection, in recent years, the life science research of deep sea hot liquid ports and cold spring ports gradually becomes a focus research subject, a fixed-point plankton collection device capable of adapting to deep sea areas is needed, the water pressure is also improved along with the improvement of the underwater depth, and if the plankton cannot be well maintained during the collection in deeper water, the plankton can be prematurely dead after being lifted to the water surface.

Disclosure of Invention

In view of the above prior art, the present invention provides a collector for plankton, which utilizes a gradient pressure container formed by a plurality of box bodies to maintain pressure on the plankton located at the innermost layer, has a low requirement on the pressure-resistant degree of a single box body, and can maintain pressure on the collected plankton when collecting in a deeper water body.

The technical scheme of the invention is realized as follows: a collector for plankton comprises a collecting cover, a water pumping device and a plurality of spherical box bodies nested together, the side wall of the box body is provided with a pressure relief valve, a water inlet valve and a water outlet valve, the pressure relief valve, the water inlet valve and the water outlet valve are all communicated with the inside and the outside of the box body, the water inlet valves of different box bodies are aligned with each other, the water inlet valves are communicated with each other through the first communication pipe, the water outlet valves of different box bodies are aligned with each other, the water outlet valves are communicated with each other through a second communicating pipe, through holes are formed in the side walls of the first communicating pipe and the second communicating pipe, a filter screen is arranged in the box body positioned at the innermost layer, the water inlet valve of the box body positioned at the outermost layer is communicated with the water pumping device through a second water inlet pipe, the collection cover is communicated with the water pumping device through a first water inlet pipe, and the water pumping device pumps water in the first water inlet pipe into the second water inlet pipe.

Further, the inlet valve is located at the opposite side of the outlet valve.

Furthermore, the filter screen is spherical, an opening is formed in one side of the filter screen, and the opening is fixed to the water inlet valve.

Furthermore, the outer wall of the filter screen is provided with a connecting wire, and the connecting wire is connected with the inner wall of the box body.

Further, the collecting cover is conical.

Furthermore, the water outlet valve positioned on the outermost box body is communicated with a water outlet pipe, the water pumping device comprises a water pump, a first backflow pipe and a second backflow pipe, one end of the first backflow pipe penetrates through the side wall of the water outlet pipe and is communicated with the water outlet pipe, the other end of the first backflow pipe is communicated with the water inlet of the water pump, one end of the second backflow pipe penetrates through the side wall of the second water inlet pipe and is communicated with the second water inlet pipe, and the other end of the second backflow pipe is communicated with the water outlet.

Further, the first return pipe is connected with the water outlet pipe in an inclined mode, and the first return pipe faces to the direction opposite to the water flow direction.

Furthermore, the second return pipe is obliquely connected with the second water inlet pipe, and the second return pipe faces to the direction along the water flow.

The invention has the beneficial effects that: the plankton collection device can collect plankton in places such as lakes and the like, can also collect plankton in deep sea, and can protect the collected plankton by maintaining pressure of the collected plankton by using the box body when collecting plankton in deep sea. The gaps between the box bodies are filled with water to form gradient pressure spaces, the pressure difference of two sides of each box body is kept in a bearable range, and the box bodies can be prevented from being damaged due to overlarge internal and external pressure differences after being lifted to the water surface from a deep water area. The pressure resistance requirement on a single box body is not high, the wall thickness of each box body does not need to be very thick, and the side wall of the box body does not need to be very thick. The box body is spherical, so that the box body is uniformly stressed.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only preferred embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic structural view of a collector for plankton in embodiment 1 of the present invention;

fig. 2 is a schematic structural view of a collector for plankton in embodiment 2 of the present invention;

in the figure, 1 a collecting cover, 2 a water pumping device, 3 a box body, 4 pressure release valves, 5 a water inlet valve, 6 a water outlet valve, 7 a first communicating pipe, 8 a second communicating pipe, 9 through holes, 10 a filter screen, 11 a first water inlet pipe, 12 a second water inlet pipe, 13 openings, 14 connecting lines, 15 a water outlet pipe, 16 a water pump, 17 a first return pipe and 18 a second return pipe.

Detailed Description

In order to better understand the technical content of the invention, specific embodiments are provided below, and the invention is further described with reference to the accompanying drawings.

Example 1

Referring to fig. 1, a collector for plankton comprises a collecting cover 1, a water pumping device 2 and a plurality of spherical box bodies 3 nested together, wherein a pressure release valve 4, a water inlet valve 5 and a water outlet valve 6 are arranged on the side wall of each box body 3, the pressure release valve 4, the water inlet valve 5 and the water outlet valve 6 are all communicated with the inside and the outside of each box body 3, the water inlet valves 5 of different box bodies 3 are aligned with each other, the water inlet valves 5 of adjacent box bodies 3 are communicated with each other through a first communicating pipe 7, the water outlet valves 6 of different box bodies 3 are aligned with each other, the water outlet valves 6 of adjacent box bodies 3 are communicated with each other through a second communicating pipe 8, the side walls of the first communicating pipe 7 and the second communicating pipe 8 are provided with through holes 9, a filter screen 10 is arranged in the box body 3 at the innermost layer, the water inlet valve 5 of the box body 3, gather cover 1 through first inlet tube 11 with pump water installation 2 intercommunication, pump water installation 2 will the water pump in the first inlet tube 11 arrives in the second inlet tube 12.

The plurality of box bodies 3 are nested together, and gaps are reserved among the box bodies 3 and used for filling water. After the water inlet valve 5 and the water outlet valve 6 are opened, the collecting device is placed into water, the water inlet valve 5 and the water outlet valve 6 are communicated with the inside and the outside of the box body 3, after the water inlet valve 5 and the water outlet valve 6 are opened, the inside and the outside of the box body 3 are communicated, the water inlet valves 5 of different box bodies 3 are aligned with each other, the water outlet valves 6 of the box bodies 3 are aligned with each other, the water inlet valves 5 of the adjacent box bodies 3 are communicated with each other through a first communicating pipe 7, the water outlet valves 6 are communicated with each other through a second communicating pipe 8, through holes 9 are formed in the side walls of the first communicating pipe 7 and the second communicating pipe 8, water flows into the box bodies 3 from the first communicating pipe 7 and the second communicating pipe 8 and flows into gaps between the box bodies 3 through. 16 device work backs of water pump, the collection system of aquatic begins to gather the work, gather cover 1 through first inlet tube 11 with pump water installation 2 intercommunication, pump water installation 2 will water pump in the first inlet tube 11 arrives in the second inlet tube 12, plankton along with rivers enter into the box body 3 of inlayer from second inlet tube 12 in, be located to be equipped with filter screen 10 in the box body 3 of inlayer, and plankton is kept off in the box body 3 of inlayer by filter screen 10 check, closes water intaking valve 5 and outlet valve 6 after gathering the end. Promote the surface of water with collection system from under water, at the in-process that promotes, collection system reduces at the degree of depth of the surface of water gradually, and the pressure in the 3 outsides of outermost box body reduces gradually, and when the pressure differential of ectonexine reached the certain degree, relief valve 4 opened, and the rivers of 3 inboards of box body pass through relief valve 4 and arrange the outside for the pressure differential of inside and outside both sides can not be too big, and protection box body 3 is not propped badly. After 3 drainage pressure release of outermost box body, the pressure differential of the inside and outside both sides of inferior outer box body 3 increases, and the 3 relief valve 4 of inferior outer box body opens and carries out the drainage after the pressure differential increases to certain stratification degree for the pressure differential of 3 both sides of inferior outer box body can not be too big. By analogy, the pressure difference of the two sides of each box body 3 is kept under the safe pressure, so that the box bodies 3 are not damaged by the overlarge pressure difference. The plankton collection device can collect plankton in places such as lakes and the like, can also collect plankton in deep sea, and can protect the collected plankton by maintaining pressure of the collected plankton by using the box body 3 when collecting plankton in deep sea. The gaps between the box bodies 3 are filled with water to form gradient pressure spaces, the pressure difference between two sides of each box body 3 is kept in a bearable range, and the box bodies 3 can be prevented from being damaged due to overlarge internal and external pressure differences after being lifted to the water surface from a deep water area. The wall thickness of each box 3 need not be very thick and it is not necessary to produce very thick side walls of the box 3. The box body 3 is spherical, so that the box body 3 is stressed uniformly.

Specifically, the inlet valve 5 is located at the opposite side of the outlet valve 6. The water pumping device 2 can select a water pump, water flows into the box body from the water inlet valve 5 and flows out of the box body from the water outlet valve 6, and the water inlet valve 5 is positioned on the opposite side of the water outlet valve 6 to facilitate water flow.

Specifically, the filter screen 10 is spherical, an opening 13 is formed in one side of the filter screen 10, and the opening 13 is fixed to the water inlet valve 5. The plankton enters the innermost case 3 with the water flow, enters through the opening 13 of the filter net 10, and is isolated in the innermost case 3. The spherical filter screen 10 allows water to pass through the filter screen 10 from multiple locations, maintaining a regular flow of water.

Specifically, the outer wall of the filter screen 10 is provided with a connecting line 14, and the connecting line 14 is connected with the inner wall of the box body 3. The connecting line 14 pulls the filter screen 10 apart to enlarge it to a spherical shape, which is convenient for filtering and collecting. The connecting wire 14 also serves as a fixing function to prevent the filter net 10 from shaking in the case 3.

Specifically, the collecting cover 1 is conical. The collection is convenient.

Example 2

Referring to fig. 2, the present embodiment is different from embodiment 1 in that the outlet valve 6 of the outermost box body 3 is communicated with an outlet pipe 15, the water pumping device 2 includes a water pump 16, a first return pipe 17 and a second return pipe 18, one end of the first return pipe 17 passes through the side wall of the outlet pipe 15 and is communicated with the outlet pipe 15, the other end of the first return pipe is communicated with a water inlet of the water pump 16, one end of the second return pipe 18 passes through the side wall of the second inlet pipe 12 and is communicated with the second inlet pipe 12, and the other end of the second return pipe is communicated with a water outlet of the water. The water which flows out from the box body 3 after being filtered by the filter screen 10 can be recycled, the water outlet pipe 15, the first return pipe 17, the water pump 16, the second return pipe 18 and the second water inlet pipe 12 are sequentially communicated, one part of the water which flows out from the water outlet pipe 15 flows into the first return pipe 17, is pumped into the second return pipe 18 through the water pump 16, and finally enters the second water inlet pipe 12. In particular, the first return pipe 17 is connected to the outlet pipe 15 in an inclined manner, and the first return pipe 17 faces in the opposite direction to the water flow, i.e. in the direction of the box body 3. In particular, the second return pipe 18 is connected obliquely to the second inlet pipe 12, and the second return pipe 18 faces in the direction of the water flow, i.e. in the direction of the box body 3. The water that gets into second inlet tube 12 flows to 3 directions of box body fast under the inertia effect to the water that drives second inlet tube 12 flows to the direction of first inlet tube 11, gathers the plankton, and the flow in-process of plankton need not pass through the pump body, avoids the plankton to suffer 16 mechanical injury of water pump, the save plankton that can be better.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A collector for plankton is characterized by comprising a collecting cover, a water pumping device and a plurality of spherical box bodies nested together, the side wall of the box body is provided with a pressure relief valve, a water inlet valve and a water outlet valve, the pressure relief valve, the water inlet valve and the water outlet valve are all communicated with the inside and the outside of the box body, the water inlet valves of different box bodies are aligned with each other, the water inlet valves are communicated with each other through the first communication pipe, the water outlet valves of different box bodies are aligned with each other, the water outlet valves are communicated with each other through a second communicating pipe, through holes are formed in the side walls of the first communicating pipe and the second communicating pipe, a filter screen is arranged in the box body positioned at the innermost layer, the water inlet valve of the box body positioned at the outermost layer is communicated with the water pumping device through a second water inlet pipe, the collection cover is communicated with the water pumping device through a first water inlet pipe, and the water pumping device pumps water in the first water inlet pipe into the second water inlet pipe.

2. A collector for plankton according to claim 1 wherein said inlet valve is located opposite said outlet valve.

3. The collector for plankton according to claim 1, wherein the filter screen is spherical, an opening is arranged on one side of the filter screen, and the opening is fixed at the water inlet valve.

4. The collector for plankton according to claim 1, characterized in that the outer wall of the filter screen is provided with a connecting line, and the connecting line is connected with the inner wall of the box body.

5. A collector for plankton according to claim 1 wherein said collection hood is conical.

6. The collector for the plankton according to claim 1, wherein the outlet valve of the box body positioned at the outermost layer is communicated with an outlet pipe, the water pumping device comprises a water pump, a first return pipe and a second return pipe, one end of the first return pipe penetrates through the side wall of the outlet pipe and is communicated with the outlet pipe, the other end of the first return pipe is communicated with a water inlet of the water pump, one end of the second return pipe penetrates through the side wall of the second inlet pipe and is communicated with the second inlet pipe, and the other end of the second return pipe is communicated with a water outlet of the water pump.

7. A collector for plankton according to claim 1 wherein said first return conduit and said outlet conduit are connected at an angle, said first return conduit being oriented against the direction of water flow.

8. A collector for plankton according to claim 1, characterized in that said second return pipe and said second water inlet pipe are connected obliquely, said second return pipe facing in the direction of the water flow.