JP4266735B2 - Floating water pipe system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a technique for recovering blue sea cucumbers generated in closed water areas such as lakes and marshes, for example. The present invention relates to a floating water pipe type auko collection device that effectively collects and removes the surface layer ako during the growth period.
[0002]
[Prior art]
In the lakes throughout the country, water blossoms caused by cyanobacteria that form blue-green algae with phytoplankton are becoming a major social problem.
The fundamental measure is to improve the water quality of the closed waters, but it is not easy to reduce the inflow of nutrients such as nitrogen and phosphorus and the nutrients accumulated in the lake bottom mud. The technology linked to practical use has not been established yet.
On the other hand, once the breeding seasons have formed a mat, they will float on the surface of the water and become difficult to dive under. As a result, the rotting odor of the sea bream whose living cells have aged and died on the surface of the water is blown to the center of the lake and the leeward shore of the lake, causing serious odor pollution to the surrounding residents.
In the current situation where the use of water is tight, it is an urgent task to develop a technique for removing sea urchins that have urgently failed. In addition, the occurrence of water blooming on the surface of the water is not only causing light inhibition to other algae, but also a troublesome property that causes landscape damage.
By the way, as a main thing among the conventional blue seaweed processing technology,
(1) Using fixed facilities such as UV purification facilities and fountain-type purification facilities,
(2) Using a facility where water is collected from the water intake pipe inserted into the lake, together with water from the lake, pressurized by a pressure pump, collided with an injection nozzle, alga killed, and returned to the lake as it is.
(3) As a mobile equipment, a method of removing blue seawater by a blue sea recovery ship,
Etc. are known.
[0003]
[Problems to be solved by the invention]
However, there are the following problems in the above-described prior art blue processing.
(1) For fixed facilities such as UV purification facilities and fountain-type purification facilities, effective collection processing of blue sea urchins generated in a wide range of lakes is difficult and should be improved in terms of equipment costs and operation and maintenance costs. There are many points.
(2) The facility that collects the water from the water from the water intake pipe inserted into the lake, pressurizes it with a pressure pump, collides it with a spray nozzle, kills it, and returns it to the lake as it is. Lack of sex. In addition, if the alga slaughter is not collected and deposited on the bottom of the lake, the bottom sediment and water quality of the lake are deteriorated again.
(3) Although there is a technology for removing the sea bream using a blue sea recovery vessel as a mobile facility, there is a problem in disturbing the water area and collecting it effectively in order to navigate the recovery ship in the water area where the sea bream occurs. In terms of maintenance costs, there are still many points that need to be improved to produce an effect that is commensurate with economic efficiency.
[0004]
In view of the above-mentioned problems, the present invention was created to solve the problems. The object of the present invention is to float the surface of the water by itself from the viewpoint of the sea cucumber recovery technology, and to leeward by blowing air. It is an object of the present invention to provide a floating water pipe type auko recovery device capable of effectively recovering and removing the surface layer ako during the growth phase by utilizing the characteristics of the accumulated aoko.
[0005]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the invention of claim 1 utilizes the property that when it is densely formed into a mat shape, which is a characteristic of aquatic mushrooms, it floats on the surface of a closed water area and accumulates in the lee by blowing air. A floating ring is attached to the outer circumference, the draft is adjusted by the floating ring, and a double-pipe floating intake pipe with a small-diameter internal intake pipe is connected to the surface of the closed water area in the leeway in an arcuate manner. The internal intake pipe is inscribed in the inner periphery of the floating intake pipe, and a plurality of stagnation openings are formed at the inscribed draft level, and the surface water including the floating sea urchin is drawn into the internal intake pipe from the stagnation openings provided at the draft level. The submersible pump comprises means provided on the downstream side of the internal intake pipe .
[0006]
Further, the invention of claim 2 uses the property that when a dense mat is formed, which is a characteristic of aquatic larvae, it floats on the surface of the closed water area and accumulates in the lee by blowing air, and a floating ring is formed on the outer periphery. A double-pipe floating intake pipe with a small-diameter internal intake pipe that is attached and adjusted by the floating ring is connected to the surface of the closed water area in the leeway, and the internal intake pipe is floated at the draft level. A submersible pump is connected to the inner intake pipe, in which a plurality of stagnation openings are formed at the draft level inscribed in the inner circumference of the water pipe, and surface water including floating sea urchins is drawn into the internal intake pipe from the plurality of stagnation openings provided at the draft level . Provided on the downstream side, a water supply pipe for sending the surface water containing the collected sea cucumber to the water separation water tank is arranged, one end side of the water supply pipe is connected to the internal intake pipe, and the other end side is connected to the water separation water tank. Water from the surface water that contains the blue sea urchin in the generated fine bubbles A fine bubble generator that separates and floats on the surface is installed at the bottom of the aquarium separation water tank, and a slant conveyor is installed to transport the aquarium floated on the surface of the aquarium to the aquarium recovery tank. The water discharge pipe is provided with a water return pipe, one end of the water discharge pipe is connected to the water separation water tank, and the other end is connected to the closed water area.
[0007]
Here, the water-separated water tank in the invention of claim 2 is installed on land or mounted on a trolley floating in a closed water area.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described more specifically based on the embodiments of the invention described in the drawings.
Here, Fig. 1 (A) is a plan view of the entire facility when installed on the shore of the leeward lake, (B) is a plan view of the entire facility when installed on the lee of the center of the lake, and Fig. 2 (A) is a floating intake pipe. FIG. 3B is a cross-sectional view of the floating intake pipe, FIG. 3A is a side view of the T branch portion of the floating intake pipe and the internal intake pipe, and FIG. 3B is a T branch of the floating intake pipe and the internal intake pipe. FIG. 4 is a schematic view showing the configuration of the sea cucumber recovery device.
[0009]
In the figure, FIG. 1 (A) shows a plan layout of the entire facility when recovering a group of surfaced sea cucumbers 3 that accumulate in, for example, two leeward shores of a lake 1 as a closed water area. Floating water intake pipes 5 are connected in an arcuate shape so as to surround the surface-sealed sea urchins 3 that accumulate and move, and both ends thereof are fixed by mooring lines 13. Further, in order to prevent the floating dust from flowing into the lee, a dust-proof net 12 is provided to connect both ends of the bow shape.
[0010]
On the shore of the leeward lake shore 2, a sea urchin separating water tank 9 is installed to separate the sea urchin from the sea urchin water a mixed with the surface sea urchin 3. Between the floating water intake pipe 5 and the blue water separation water tank 9, a water supply pipe 8 for sending the blue water a taken from the lake 1 through the floating water intake pipe 5 to the blue water separation water tank 9 is disposed. The upstream side of the water supply pipe 8 is connected to the T-branch portion 6 a of the inner intake pipe 6 at the center of the floating intake pipe 5 arranged in an arcuate shape, and the downstream side of the water supply pipe 8 is connected to the auko separation water tank 9. In addition, an underwater pump 7 is provided between the T branch 6 a and the water supply pipe 8 to send the aquo water a taken from the lake 1 to the auko separation water tank 9. A water discharge pipe 11 is provided between the water separation tank 9 and the lake 1 for returning the water sample e separated from the water in the water separation tank 9 to the lake 1 again.
[0011]
FIG. 1 (B) shows a plan layout of the entire facility when collecting three groups of surface-sealed sea cucumbers that accumulate in the lee of the center of the lake 1 as a closed water area. Floating water intake pipe 5 is connected in an arcuate shape so as to surround 3, and both ends thereof are fixed by mooring lines 13. Further, in order to prevent the floating dust from flowing into the lee, a dust-proof net 12 is provided to connect both ends of the bow shape.
[0012]
The water separation tank 9 for separating the water from the water a mixed with the surface water 3 is mounted on a pontoon 14 floating on the lake 1. The trolley 14 is held and fixed on the surface of the lake 1 by a mooring line 15. ing. Between the floating water intake pipe 5 and the blue water separation water tank 9, a water supply pipe 8 for sending the blue water a taken from the lake 1 through the floating water intake pipe 5 to the blue water separation water tank 9 is disposed. The upstream side of the water supply pipe 8 is connected to the T-branch portion 6 a of the inner intake pipe 6 at the center of the floating intake pipe 5 arranged in an arcuate shape, and the downstream side of the water supply pipe 8 is connected to the auko separation water tank 9. In addition, an underwater pump 7 is provided between the T branch 6 a and the water supply pipe 8 to send the aquo water a taken from the lake 1 to the auko separation water tank 9. A water discharge pipe 11 is attached to the water separation tank 9 for returning the water sample e separated from the water in the water separation tank 9 mounted on the carriage 14 to the lake 1 again.
[0013]
2 (A) and 2 (B) show a single pipe of the floating intake pipe 5, and a floating ring 5b is attached to both sides of the single floating intake pipe 5 in order to maintain stability as a floating body and a predetermined draft f. It has been. The floating ring 8 a is attached to the entire circumference in the circumferential direction of the outer circumference on both sides of the floating water intake pipe 5. In order to suck the mat-like surface-sealed sea urchin 3 flowing down by the blowing flow 4 into the floating intake pipe 5, a plurality of stagnation openings 5a are provided near the draft f of the floating intake pipe 5 between the floating rings 8a. . Each stagnation mouth 5a is horizontally long in the horizontal direction.
[0014]
The floating water intake pipe 5 has a double pipe structure having an internal water intake pipe 6 that shares a stagnation mouth 5a. That is, a part of the internal intake pipe 6 is inscribed on the side of the stagnation port 5a of the floating intake pipe 5, and the stagnation port 5a is shared by the inscribed part.
[0015]
The reason for the double-pipe structure is that, as a result of the experiment, if the diameter of the intake pipe through which the water a is flowing is large, the surface water where the surface water 3 is floating does not flow, and only the water below the surface is underwater. It is sucked by the pump 7 and flows through the pipe and is sent from the T branching portion 6a to the water supply pipe 8, and the surface layer aiko 3 stays in the water intake pipe. On the other hand, when the diameter of the water intake pipe is reduced, the surface water on which the surface water canopy 3 is floated can be sucked by the submersible pump 7 and can flow through the pipe and be sent out to the water supply pipe 8. On the other hand, if the diameter of the intake pipe is reduced, the vertical fluctuation increases due to the influence of the suction of the submersible pump 7 and the stability as a floating body deteriorates, and the position of the stagnation mouth 5a greatly moves up and down. There is an inconvenience that the water a cannot be stably sucked into the pipe through the squeezing port 5a.
[0016]
Accordingly, the floating intake pipe 5 having a large outer diameter has a function as a floating body and prevents the stagnation port 5a from moving up and down, and the inner intake pipe 6 having a small inner diameter serves as a stagnation mouth. The water a that has been taken into the pipe from 5a is surely flowed through the pipe by the submersible pump 7 and delivered to the water pipe 8.
[0017]
As described above, the floating intake pipe 5 having a large outer diameter of the double structure is designed from the viewpoint of stability as a floating body, and the inner intake pipe 6 having a small inner diameter is formed of the surface water in which the surface seawater 3 floats. The diameter is designed from the viewpoint of flowing through the pipe by suction by the submersible pump 7.
[0018]
A plurality of water inlets 5c are formed in the lower part of the floating intake pipe 5 constituting the outside of the double structure, and external water is put into the floating intake pipe 5 outside the inner intake pipe 6 through the water inlet 5c. Thus, when the floating water intake pipe 5 fluctuates up and down in the state of communication with the outside, the water put inside acts as a resistance to improve the stability as a floating body.
[0019]
On the other hand, on the lower surface of the floating water intake pipe 5, there is suspended a spilling prevention sheet 5e having a weight 5f at the lower end to prevent the squeezing of the slats in water. Moreover, the connection between the adjacent pipes of the floating water intake pipe 5 is a flange joint. For this reason, flanges 5d are attached to the peripheral edges of both ends of each floating water intake pipe 5 by welding.
[0020]
3A and 3B show the T-branch portion 6 a of the floating intake pipe 5 and the internal intake pipe 6. The T branching portion 6a efficiently feeds the water a drawn into the pipe to the water separating water tank 9 through the water pipe 8 using the submersible pump 7, and the shape of the T branch portion 6a at the confluence of the internal water intake pipe 6 The shape of the mouth is easy to flow. Moreover, when piping the water pipe 8 on the lake surface, the floating ring 8a is attached to the water pipe 8, and stability on the lake is aimed at.
[0021]
FIG. 4 shows the configuration of the sea cucumber recovery device.
The aoko collection device generates the aoko separation water tank 9 for separating the aoko from the aoko water a, the auko collection tank 10 for collecting the aoko separated in the aoko separation water tank 9, and the fine bubbles b for separating the aoko from the aoko water a. It is composed of a fine bubble generator 16, an inclined conveyer 17 that sends the auko separated in the auko separation water tank 9 to the auko collection tank 10, and the like.
[0022]
In the one end side of the water separation tank 9, a water injection port 9a is provided. The water injection port 9a is a downstream end outlet of the water pipe 8, and the downstream end outlet of the water supply pipe 8 is the water separation water tank in FIG. 9 is attached to the left end side, which is one end side, downward. An intermediate partition wall 9b is formed in the vertical direction in the left tank which is one end side of the blue water separation water tank 9 provided with the blue water inlet 9a. The intermediate partition wall 9b is open at the top and bottom and communicates with the adjacent side to partition the intermediate part from the adjacent side. The water a flowing in from the water inlet 9a is transferred from the top or the bottom of the intermediate partition wall 9b to the adjacent side. It has a structure that flows in.
[0023]
In FIG. 4, the right adjacent side partitioned by the intermediate partition wall 9 b in an open state is a pressurized bubble generating chamber 9 c, and a fine bubble generator 16 is installed at the bottom thereof. In FIG. 4, the pressurized bubble generating chamber 9c is partitioned on the left side by an intermediate partition wall 9b, and on the lower right side by a lower partition wall 9e attached in the vertical direction. As described above, the fine bubble generator 16 is a device for generating the fine bubbles b for separating the blue water from the blue water a, and the blue water is separated from the blue water a by the generated fine bubbles b and floats.
[0024]
In FIG. 4, an inclined partition plate 9d that is inclined obliquely upward is attached to the upper right side of the lower partition wall 9e. The inclined partition plate 9d is extended and attached to the upper part on the other end side which is the right end side of the water-separated water tank 9. The inclined partition plate 9d separates the water sampling chamber 9f formed below, and the separated sea urchin flows into the water sampling chamber 9f below, and the sea urchin is separated from the water a in the water sampling chamber 9f. This prevents the water sample e from being mixed again.
[0025]
In FIG. 4, a water sampling chamber 9 f surrounded by the inclined partition plate 9 d and the lower partition wall 9 e is formed at the lower right side of the water separation tank 9. The sampling chamber 9f is a chamber into which sampling water e separated from the blue water a flows, and is between the upper end of the lower partition wall 9e and the inclined lower end of the inclined partition plate 9d. An inlet 9g is formed. The sampled water e from which the mushroom is separated from the mushroom water a flows into the sampled chamber 9f from the sampled water inlet 9g.
[0026]
Moreover, the one end side of the water discharge pipe 11 is connected to the lower side surface of the water sampling chamber 9f on the opposite side of the water sampling inlet 9g. The other end of the water discharge pipe 11 leads to the lake 1 and the water sampling e in the water sampling chamber 9 f can be returned to the lake 1 again through the water discharge pipe 11.
[0027]
An inclined conveyor 17 is similarly attached in an inclined state on the upper side of the inclined partition plate 9d of the water separation tank 9. The inclined conveyor 17 is a device that transports the auko isolated in the auko separation water tank 9 to the adjacent collection tank 10, and the inclined lower end side of the inclined conveyor 17 is submerged in the water of the aoko separation water tank 9. The upper end side is extended to the upper part of the collection tank 10 adjacent to the blue-separated water tank 9. An endless cloth belt 17a is stretched around the inclined conveyor 17 so as to circulate freely in an elliptical shape. Further, a scraper 18 is attached obliquely downward to the uppermost inclined stage of the inclined conveyor 17.
[0028]
Next, the operation based on the configuration of the embodiment of the invention will be described below.
For example, in the case of recovering the group of surface aquatic groups 3 accumulated in the leeward shore 2 water area of the lake 1 as the closed water area in FIG. 1A, or in the lee of the lake 1 center as the closed water area in FIG. When recovering the surface layer 3 group, the floating intake pipe 5 is connected to the surface layer 3 that moves and collects in the lee by the blowing flow 4 so as to surround it, and both ends thereof are fixed by the mooring line 13. Further, in order to prevent the floating dust from flowing into the leeward, a dust-proof net 12 is provided by connecting both arcuate ends. Then, after connecting the downstream side of the water supply pipe 8 on the floating intake pipe 5 side to the blue-separated water tank 9 installed on the shore of the lake shore 2 or the blue water separation tank 9 mounted on the carriage 14 of the lake 1 7 is activated.
[0029]
When the submersible pump 7 is actuated, the surface layer 3 of the lake 1 is sucked and moved to the inside of the arcuate floating intake pipe 5 and is drawn into the internal intake pipe 6 from the squeeze port 5 a of the floating intake pipe 5. The surface layer water a drawn into the internal intake pipe 6 from the stagnation port 5a of the floating intake pipe 5 is drawn down by the submersible pump 7 attached to the T-branch portion 6a at the center of the internal intake pipe 6 to flow down the pipe. It is sent into the water pipe 8 and sent from the water pipe 8 to the water separation tank 9 on land or on the lake 1.
[0030]
The aoko water a is poured into the water tank 9 through the water supply pipe 8 from the aoko water inlet 9a of the aoko separation water tank 9, and enters the adjacent pressurized bubble generating chamber 9c through the opened lower part of the intermediate partition wall 9b. A fine bubble generator 16 is attached to the bottom of the pressurized bubble generating chamber 9c, and the blue water in the blue water a that has entered the pressurized bubble generating chamber 9c by the fine bubbles b generated by the fine bubble generator 16. Floats up and is pushed up to the surface layer on the inclined partition plate 9d of the water separation tank 9.
[0031]
The surface layer aoko c of the aoko separation water tank 9 is scraped up on the fabric belt 17a of the inclined conveyor 17 with the lower slope side below the surface of the water, rises on the inclined conveyor 17, and is scraped off by the scraper 18 at the uppermost stage. The adhering sea cucumber is blown off using the compressed air d and collected in the sea cucumber collection tank 10.
[0032]
Further, the remaining flying aquarium is repeatedly scraped and collected by the inclined conveyor 17 that drives on the inclined partition plate 9d. The sampled water e from which the watermelon has been removed flows into the sampling chamber 9f through the sampling inlet 9g, flows through the sampling chamber 9f, and flows down the water discharge pipe 11 having one end connected to the lower part on the opposite side. Released to Lake 1. In this way, the water is separated into the water and the lake water, and the water is recovered in the recovery tank 10, and the purified water of the treated water sample e is discharged from the water discharge pipe 11 to the lake 1.
[0033]
As described above, the present invention is composed of the following two technical elements. A technique for collecting a wide range of surface sea cucumbers with a floating intake pipe 5 having a double pipe structure in which one is connected. The second is a technique in which the blue water is floated and separated from the lake water by using fine bubbles in the blue water separation water tank 9. That means
(1) The blue seawater that accumulates in the leeward due to the blowing flow is received by the floating intake pipe 5 that is connected in a bow shape in the leeward.
(2) The floating water intake pipe 5 is provided with a plurality of stagnation openings 5a near the draft surface, and can collect aqua water a near the surface layer over the entire arcuate length.
(3) By the submersible pump 7 provided at the center of the arched floating intake pipe 5, the aoko water a is drawn into the internal intake pipe 6 from the squeeze port 5 a and flows down toward the center of the pipe, and into the water supply pipe 8. Sent.
(4) A single pipe of the floating intake pipe 5 forming an arcuate shape is attached with a floating ring 5b in order to maintain the stability and draft of the floating body, and a lower end of the floating intake pipe 5 is provided with a weight 5f at the lower end. The infiltration prevention sheet 5e is suspended.
(5) The collected aoko water a is sent to the aoko separation water tank 9 through the water supply pipe 8, and is raised by the fine bubble generator 16 and separated into the aoko and the lake water.
(6) The flying sea cucumber is scooped up on the cloth belt 17a of the inclined conveyor 17, scraped off by the scraper 18 on the upper stage of the conveyor, and the sea urchin adhering to the cloth belt 17a is blown off by the compressed air d and collected in the sea bream collection tank 10. To do. The treated purified water is discharged into the lake 1.
[0034]
The present invention is not limited to the embodiment of the invention described above, and various modifications can be made without departing from the spirit of the invention.
[0035]
【The invention's effect】
As will be apparent from the above description, the floating water collecting pipe type auko recovery device according to the present invention can provide the following effects.
(1) The water surface of a lake by utilizing the property of forming a mat on the water surface, which is a characteristic of the breeding seasons that occur abnormally in closed water areas such as lakes and marshes, and accumulating in the lee by blowing air By collecting and collecting the high-density blue sea urchins that form a mat on the surface, it is possible to efficiently collect a wide range of sea cucumbers that have been accumulated in the lee by blowing air, and to collect the sea urchins effectively and economically. Can do.
(2) Aquatic water is collected in a wide range and effectively because it is connected in a bow shape to the lee of the water generation area, and the surface water is collected by the internal intake pipe of the floating intake pipe having many stagnation openings. .
(3) The collected blue water (abbreviation of lake water including blue water) is led to the blue water separation tank through the internal water intake pipe of the floating intake pipe with double pipe structure and separated into blue water and lake water. By recovering and removing, it is possible to prevent the deterioration of bottom sediment and water quality in closed water areas such as lakes and marshes that recur by the method of returning the dead body of the algal saccharide to the closed water area such as lakes and accumulating it in the bottom of the water.
(4) The apparatus of the present invention can be installed in the leeward water area in the center of the lake or in the leeward shore water area according to the terrain and the state of the occurrence of the blue sea in the local lake, and the place of use is not limited. As described above, the apparatus of the present invention can be installed and used according to the situation of the occurrence of sea cucumbers in closed water areas such as local lakes and marshes, regardless of the central water area or the shore water area of closed water areas such as lakes.
(5) Since the apparatus of the present invention can be assembled and dismantled at the site, the apparatus can be shared and used interchangeably between closed waters such as neighboring lakes.
(6) Since the apparatus of the present invention has a simple structure, it is more efficient than conventional equipment, can be operated with fewer personnel, and is economical in terms of equipment costs, operating costs, and maintenance costs. It is.
[Brief description of the drawings]
FIG. 1 (A) is an overall plan view of equipment when installed on a leeward lake shore showing an embodiment of the present invention.
(B) is a plan view of the entire facility when installed in the leeward of the center of the lake showing the embodiment of the present invention.
FIG. 2 (A) is a side view of a floating water intake pipe showing an embodiment of the present invention.
(B) is sectional drawing of the floating water intake pipe which shows embodiment of this invention.
FIG. 3A is a side view of a T branch portion of a floating intake pipe and an internal intake pipe showing an embodiment of the present invention.
(B) is a top view of the T branch part of the floating water intake pipe and the internal water intake pipe showing the embodiment of the present invention.
FIG. 4 is a schematic diagram showing the configuration of a sea cucumber recovery device showing an embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Lake 2 Lake shore 3 Surface blue water 4 Blowing flow 5 Floating intake pipe 5a Stitching port 5b Floating ring 5c Fluxing port 5d Flange 5e Blue-floor infiltration prevention sheet 5f Weight 6 Internal intake pipe 6a T branch part 7 Submersible pump 8 Water supply pipe 8a Floating ring 9 Blue water separation water tank 9a Blue water inlet 9b Middle partition wall 9c Pressurized bubble generation chamber 9d Inclined partition plate 9e Lower partition wall 9f Water sampling chamber 9g Water sampling inlet 10 Blue water collection tank 11 Drain pipe 12 Dustproof net 13 Mooring line 14 Boat 15 Mooring Rope 16 Fine bubble generator 17 Inclined conveyer 17a Fabric belt 18 Scraper a Blue water b Fine bubble c Surface blue water d Compressed air e Sampling f Draft

Claims (4)

When a dense mat is formed, which is a characteristic of the sea bream during the breeding season, it floats on the surface of the closed water area, and a floating ring is attached to the outer periphery using the property of being gathered downwind by blowing air flow, and the draft is adjusted by the floating ring. A double-pipe floating intake pipe with a small-diameter internal intake pipe is connected to the surface of the closed water area in the leeway in an arcuate manner, and the internal intake pipe is inscribed in the inner periphery of the floating intake pipe at the draft level. It is characterized in that a plurality of stagnation openings are formed at the draft level in contact with each other, and a submersible pump is provided downstream of the internal intake pipe to draw surface water including floating sea urchins from the plurality of stagnation openings provided at the draft level into the internal intake pipe. Floating water pipe type auko collection device. When a dense mat is formed, which is a characteristic of the sea bream during the breeding season, it floats on the surface of the closed water area, and a floating ring is attached to the outer periphery using the property of being gathered downwind by blowing air flow, and the draft is adjusted by the floating ring. A double-pipe floating intake pipe with a small-diameter internal intake pipe is connected to the surface of the closed water area in the leeway in an arcuate manner, and the internal intake pipe is inscribed in the inner periphery of the floating intake pipe at the draft level. A plurality of water intakes were formed at the draft level in contact with each other, and a submersible pump for drawing surface water containing floating sea urchins from the plurality of water intakes provided at the water intake level into the internal intake pipe was provided downstream of the internal intake pipe . A water supply pipe that sends surface water containing blue seawater to the blue water separation water tank is installed, one end side of the water supply pipe is connected to the internal intake pipe, and the other end side is connected to the blue water separation water tank. A small float that separates water from the water on the surface of the tank A bubble generator is installed at the bottom of the aquarium separation water tank, an inclined conveyor is installed to transport the aquarium floated on the surface of the aquarium to the aquarium recovery tank, and a water discharge pipe is provided to return the collected water from which the aqua has been removed to the original closed water area. A floating water pipe type auko collecting device characterized in that one end side of the water discharge pipe is connected to the water separation tank and the other end side is connected to a closed water area. The floating water pipe type aiko collection device according to claim 2, wherein the aoko separation water tank is installed on land. The floating water collecting pipe type auko collection device according to claim 2, wherein the aoko separation water tank is mounted on a pontoon floating in a closed water area.

Images