JP7297351B1 - Biological fattening equipment for aquaculture - Google Patents

Abstract

An object of the present invention is to provide a fattening apparatus for cultured organisms that can increase the dissolved oxygen in the sea and increase the amount of feed in the sea to promote the growth of the organisms to be cultured in the sea. . SOLUTION: A cultured organism fattening apparatus to be installed on a floating body floating on a sea surface above a cultured organism being cultured, the apparatus for fattening a cultured organism is a bubble provided with an air supply means, a battery, and a controller. A generating means, a housing containing the bubble generating means, and a hose mounting means protruding from the housing in a direction above the sea surface are mounted with the upper end opening facing upward at a height above the sea surface, A flexible large-diameter hose with floating means and heavy anchor means attached near the lower end opening, and a metal pipe whose upper end opening is connected to the compressed air discharge port of the air supply means, and a metal pipe is attached. The problem has been solved by the apparatus for fattening aquaculture target organisms, which includes a flexible small-diameter hose inserted into the large-diameter hose, the lower end opening of which is suspended in the sea. [Selection drawing] Fig. 4

Description

The present invention relates to a fattening apparatus for aquaculture organisms, which can be installed on a floating body such as a raft on which oysters, seaweed, etc., which are aquaculture organisms, are growing to promote the growth of the aquaculture organisms such as oysters and seaweed. .

In Patent Document 1, first and second floating bodies floating on the sea surface, first and second hoisting machines respectively mounted on the first and second floating bodies, and the first and second floating bodies , extending vertically downward from the first and second floating bodies, and fixing the other end to the seabed; first and second penetrating rings fixed to respective intermediate positions of the first and second traction means so that their horizontal levels are equal to each other; in an aquaculture system in which both ends are pulled from the first and second hoisting machines and the central portion is stretched parallel to the sea surface, a pump attached to the second floating body, and an upper a pipe connected to the pump and having a lower portion arranged below the plurality of culture cages, wherein the bottom layer water sucked up from the lower portion is mixed with bubbles containing oxygen and negative ions to be activated. An aquaculture system is disclosed in which bottom water is prepared and said activated bottom water is fed into the sea from said bottom.

In Patent Document 2, a plurality of dish-shaped containers serving as floors for cultivating benthic organisms such as bivalves are vertically layered, and a central cavity penetrating the layered cultivating bed in the vertical direction and each cultivating bed communicating with this cavity are provided. A horizontal gap is defined in the central cavity, and an aquaculture apparatus provided with an outflow direction-changing fin at the upper end of the central cavity is immersed in the eutrophic polluted water area to bring the benthic organisms into a living and active state, and Purifies the water quality and bottom sediment by removing particulate organic matter from the polluted water according to the properties of the filtered food, and attaches an impermeable sheet to the lower part of the multi-tiered bed in a skirt-like manner, forming a tubular water area formed by the impermeable sheet. Disclosed is a water and bottom sediment purification system for bivalve aquaculture and eutrophication water areas in which an upward current is generated in the bottom area to convect the water in the lower area to the surface layer.

JP 2021-7324 A Japanese Patent No. 5954629

In the invention of Patent Document 1, in order to improve the water quality of the bottom layer as a countermeasure against the oxygen-poor water mass remaining in the bottom layer, which is one of the causes of the death of the aquaculture target, a pump and air bubbles are placed near the second floating body floating on the sea surface. A generator is installed, water is taken from a pipe suspended by a pump, air bubbles and negative ions are added by a bubble generator, etc., and air bubbles flow down from the pump toward the seabed and flow horizontally near the seabed. However, since the bubbles always move upward, it is difficult for the bubbles to flow down the horizontal pipe that is bent at right angles near the seabed. There was a problem that it was difficult to blow out.

The invention of Patent Document 2 is a technique for increasing dissolved oxygen in water, and although it is possible to secure oxygen for aquaculture targets, it is said that the supply of food to the aquaculture targets such as oysters and seaweed is insufficient. I had a problem.

The present invention has been invented in view of these problems, and is capable of increasing dissolved oxygen in the sea from near the sea surface to near the sea bottom, enabling an increase in food in the sea and promoting growth. An object of the present invention is to provide an apparatus for fattening organisms for aquaculture that can promote the growth of organisms.

The apparatus for fattening organisms to be cultured according to claim 1 is an apparatus for fattening organisms to be cultured, which is installed on a floating body floating on the sea surface above the organisms to be cultured, wherein the fattening apparatus for organisms to be cultured includes air supply means. a battery for supplying electric power to the air supply means; a bubble generating means comprising a controller for controlling the operation of the air supply means; a housing in which the bubble generating means is installed; The hose has a length that allows the upper end opening to face upward at a height above the sea surface and the lower end opening to be in a horizontal position on the seabed, A flexible large-diameter hose with floating means and heavy anchor means attached near the lower end opening, and a metal pipe whose upper end opening is connected to the compressed air discharge port of the air supply means. a flexible small-diameter hose inserted into the large-diameter hose with its lower end opening suspended in the sea, and the vicinity of the lower end opening of the large-diameter hose being substantially horizontal on the seabed. The buoyant force of the floating means and the sinking force of the heavy anchor means are set so that approximately half of the opening area of the lower end opening can be buried while maintaining the direction attitude, and the bubble generating means is controlled by the control section. By activating the, bubbles are generated in the seawater in the large-diameter hose from the metal pipe of the small-diameter hose to cause an upward flow of water, and the sediments and seawater on the seabed are pushed out to the upper end opening of the large-diameter hose. It is characterized by jetting out from.

According to a second aspect of the present invention, there is provided a fattening apparatus for aquaculture target organisms according to the first aspect, wherein solar power generation means for charging the battery is installed above the casing.

Claim 3 is the apparatus for fattening organisms to be cultured according to claim 1 or 2, wherein the hose mounting means can vertically change the height of the upper end opening of the large-diameter hose with respect to the housing. It is characterized by having a height direction adjustment means.

According to a fourth aspect of the present invention, there is provided a fattening apparatus for aquaculture target organisms according to the first or second aspect, wherein voltage measuring means capable of monitoring the state of charge of the battery is installed in the housing.

The apparatus for fertilizing aquaculture target organisms sucks up nutrients such as nitrogen and phosphorus abundantly contained near the seabed and seeds of phytoplanton to the surface of the sea. By increasing the phytoplanton in the reachable water depth, it is possible to increase food for the cultured organisms and promote the growth of the cultured organisms.

Since the power supply source for the battery is the solar power generation means, it is possible to secure the power required to operate the air bubble generating means even on the sea.

For example, oysters and seaweed are the organisms to be cultivated. Since the vertical height of a floating body such as a raft with respect to the sea surface changes depending on the weight suspended in the sea, the upper end opening of the large-diameter hose should be higher than the sea surface. If not, the seawater near the sea surface will flow in from the upper end opening, making it difficult to suck up the seawater near the seabed. The upper end opening can be varied according to the ups and downs of a floating body such as a raft, and seawater can be jetted like a fountain without flowing in from the upper end opening.

FIG. 2 is an explanatory view showing the usage state when the apparatus for fattening aquaculture target organisms of the present invention is installed on a raft for oysters, with the inside of the housing and the inside of the hose visible. FIG. 2 is an enlarged explanatory view of part A in FIG. 1; FIG. 3 is an explanatory diagram of the seawater flow when the air bubble generating means is operated in FIG. 2 ; The flow of seawater when the air bubble generating means is operated with two units of the fattening apparatus for aquaculture target organisms of the present invention installed on the raft of oysters is described so that the inside of the housing and the inside of the hose can be seen. It is an explanatory diagram.

As shown in FIGS. 1 to 4, the apparatus 1 for fattening organisms to be cultured according to the present invention supplies nutrient salts and phytoplankton from the seabed 41 to the organisms to be cultured such as oysters and seaweed to grow in the sea. It is a facilitating device. For example, dissolved organic matter is biologically and chemically decomposed into nutrient salts such as nitrogen and phosphorus in the sediment of the sea area of a farm for farming organisms such as oysters and seaweed. The deposited sediment 45 is an aggregate of particles, so it is soft and interstitial water exists between the particles, and the concentration of the nutrient salts is higher than in seawater. Therefore, heavy objects that have sunk to the seabed 41 are buried in the soft sediment 45 .

In addition, phytoplankton, which are organisms that normally swim in the sea and have photosynthetic pigments that absorb sunlight and use light energy to synthesize organic matter from inorganic matter, sink to the seabed 41, making it difficult for sunlight to reach the environment. In other words, when the environment becomes unsuitable for growth, phytoplankton form dormant cells (seeds) and spend their time on the sediment.

The inventors of the present invention focused on the dormant cells of nutrient salts and phytoplankton present on the seabed 41 below the cultured organisms 60, and started to cultivate the cultured organisms 60 such as oysters and seaweed. The present invention was conceived in consideration of utilization of nutrients and phytoplankton existing in the sediment 45 which is the bottom sediment of the seabed 41 .

As shown in FIGS. 1 to 4, the fattening apparatus 1 for aquaculture target organisms of the present invention is installed on a floating body 50 floating on a sea surface 40 above a culture target organism 60 being cultivated, The aquaculture target organism fattening apparatus 1 includes an air supply means 5, a battery 6 for supplying power to the air supply means 5, and a control section 7 for controlling the operation of the air supply means 5; A housing 8 in which the air bubble generating means 2 is installed, and a hose mounting means 9 protruding from the housing 8 in a direction above the sea surface 40 have an upper end opening 31 facing upward at a height above the sea surface 40. It has a length that allows the lower end opening 32 to take a sideways posture on the seabed 41, and the floating means 10 and the heavy anchor means 11 are attached near the lower end opening 32. a large-diameter hose 3 having a large diameter, and a large-diameter hose having an upper end opening 21 connected to the compressed air discharge port of the air supply means 5 and having a lower end opening 22 attached to a metal pipe 12 suspended in the sea. and a flexible small-diameter hose 4 inserted in the inside 3, so that the vicinity of the lower end opening 32 of the large-diameter hose 3 can maintain a substantially horizontal posture on the seabed 41. By setting the buoyancy of the floating means 10 and the sinking force of the heavy anchor means 11 and operating the air bubble generating means 2 with the control section 7, the metal pipe 12 of the small diameter hose 4 is displaced from the large diameter hose. It is a device that generates bubbles 80 in the seawater inside 3 to cause an ascending water current 81 to eject sediments on the seabed 41 and seawater from the upper end opening 31 of the large-diameter hose 3 .

As shown in FIG. 1 or FIG. 4, the apparatus for fattening aquaculture target organisms is installed on a raft, which is a floating body 50 on which oysters are suspended, when growing aquaculture target organisms such as oysters. Depending on the size, one to several units are installed for one raft. The fattening apparatus 1 for aquaculture target organisms is installed at a position, such as the central part or the end part of the raft, which is the floating body 50, in consideration of the shape of the raft, etc., where the effect of feeding the aquaculture target organisms is the highest.

An air bubble generating means 2 is installed in the casing 8 of the aquaculture target organism fattening apparatus 1. The air bubble generating means 2 includes an air supply means 5 for blowing compressed air, and a control unit 7 for controlling the operation of the air supply means 5 . The controller 7 controls the operation of the air supply means 5 .

Since the aquaculture target organism fattening apparatus 1 is used on the sea, a commercial power source cannot be used, so a solar power generating means 20 is provided. The photovoltaic power generation means 20 is installed above the housing 8, and the battery 6 receives and stores electric power generated by the photovoltaic power generation means 20 during the day, and supplies electric power to the air supply means 5 and the like. supply.

The air supply means 5 may be any means such as an air compressor, a blower, a blower, etc., as long as it generates an air flow. The air supply means 5 is operated by the electric power from the battery 6, but since the amount of electricity stored in the battery 6 is limited, the operation time can be preset by the control section 7 on a timer.

A voltage measuring means (not shown) capable of monitoring the state of charge of the battery 6 is installed in the housing 8 . When it is detected by the voltage measuring means for monitoring the remaining amount of the battery 6 that there is no charge required for the operation of the bubble generating means 2, it is an operating time period set in advance by a timer (not shown). The controller 7 controls so as not to operate the air bubble generating means 2 also. Also, the voltage measuring means can be wirelessly connected to a portable information terminal or a stationary information terminal, and can be monitored at a remote location away from the farm.

The battery 6 is connected to the photovoltaic power generation means 20, the control section 7, the air supply means 5, the timer, and the voltage measurement means by electric wires capable of transmitting electric power, and the control section 7 , the air supply means 5, the timer, and the voltage measurement means via control lines.

The large-diameter hose 3 is a flexible large-diameter hose. The upper end opening 31 is directed upward at a height higher than the sea surface 40, and the lower end opening 32 is in a state of being suspended in the sea. It has a length that allows you to lie on it. The reason why the upper end opening 31 is higher than the sea surface 40 is that when the height of the upper end opening 31 reaches a height at which seawater can flow into the large-diameter hose 3, sediments and seawater on the seabed 41 are sucked up. is difficult. The height of the upper end opening 31 is set according to the scale of the sea surface 40 on which the seawater sprayed from the upper end opening 31 like a fountain 82 falls from the air.

In addition, as the oysters, which are the organisms 60 to be cultivated, grow, the total weight of the drooping oysters becomes heavy, and the raft gradually sinks. In order to prevent reverse flow into the large-diameter hose 3, the height of the upper end opening 31 of the large-diameter hose 3 is vertically variable with respect to the housing 8. there is

The hose attachment means 9 is fixed to the side wall of the housing 8, and has, for example, a substantially L-shaped configuration of a vertical component and a horizontal component when viewed from the side, and is fixed to the housing 8. The vertical structural body portion may be a means for changing the height by sliding the slide means in the vertical direction, or a pin or the like may be inserted into holes provided at predetermined intervals in the height direction, and the locking body may be fitted into different holes in the vertical direction. It is height changing means by insertion, and the lateral structure has a structure for fixing the upper end opening 31 of the large-diameter hose 3 in an upward state. Thereby, the large-diameter hose 3 can be suspended in the sea from a height higher than the sea surface 40, and the seawater can be prevented from flowing backward from the upper end opening 31. - 特許庁

In the vicinity of the lower end opening 32 of the large-diameter hose 3, a floating means 10 having a balance between buoyancy and sinking force is set so that the portion in the vicinity of the lower end opening 32 can maintain a substantially horizontal posture on the seabed 41; A heavy anchor means 11 is attached. As a result, when the large-diameter hose 3 is sunk toward the seabed 41 , the lower-end opening 32 of the large-diameter hose 3 is turned sideways, and the bottom opening 32 of the large-diameter hose 3 falls into the sediment 45 of bottom mud on the seabed 41 . Approximately half of the opening area of the portion 32 can be buried.

In the sediment 45 of the bottom sludge, nutrient salts of nitrogen and phosphorus with high concentrations that promote the growth of aquaculture target organisms 60 such as oysters and seaweed are deposited. Since dormant cells (seeds) of phytoplankton are staying in the interstitial water of the sediment 45, approximately half of the lower end opening 32 is buried in the sediment 45, which is the sediment of the bottom of the sea. As a result, the nutrient salts and dormant cells (seeds) of phytoplankton can be sucked up onto the sea surface 40 .

Therefore, the balance between the buoyancy of the floating means 10, for example, and the sinking force caused by the weight of the heavy anchor means 11, for example, becomes important. On the seabed 41 , the portion near the lower end opening 32 needs to be in a horizontal posture, so the buoyancy and sinking force are adjusted according to the softness of the sediment 45 on the seabed 41 .

Next, the small-diameter hose 4 has an upper end opening 21 connected to the compressed air discharge port of the air supply means 5, and the large-diameter hose 3 suspended in the sea at a lower end opening 22 to which a metal pipe 12 is attached. A flexible small diameter hose 4 inserted therein.

The metal pipe 12 has a weight that prevents the bottom opening 22 from being bent upward by the injected air bubbles 80, and is processed so as not to be corroded by seawater. Compressed air from the air supply means 5 flows in through the upper end opening 21 and is jetted as air bubbles 80 into the large diameter hose 3 through the lower end opening 22 . This injection can induce an upward flow of water in the large-diameter hose 3 .

Next, the operation will be explained. When the air supply means 5 is operated by the control unit 7, an air flow blown from, for example, an air compressor, which is the air supply means 5, flows into the small diameter hose 4 from the upper end opening 21, and the small diameter hose 4 A large number of air bubbles 80 are injected from the metal pipe 12 attached to the lower end opening 22 inserted into the large-diameter hose 3 submerged in the sea and filled with seawater.

3 or 4, seawater in the large-diameter hose 3 becomes an upward flow 81 due to the upward movement of the bubbles 80, as shown in FIG. 3 or FIG. Sediment on the seabed 41 and seawater sucked from the lower end opening 32 of the large-diameter hose 3 are vigorously ejected upward like a fountain 82 from the upper end opening 31 .

As shown in FIG. 3 or 4, the seawater ejected from the upper end opening 31 of the large-diameter hose 3 falls into the surrounding sea area, and when it falls to the sea surface, a large number of bubbles W are generated. The oxygen content can be increased, and furthermore, the fallen seawater flows down toward the direction K in the sea and spreads laterally along with the flow of the sea current.

Dormant cells (seeds) of phytoplankton are activated in the sea near the sea surface 40 where sunlight reaches. As a result, oxygen is supplied to the entire oyster, which is the organism to be cultivated 60, and the nutrient salts of nitrogen and phosphorus and sunlight reach near the sea surface 40, and organic matter is synthesized from inorganic matter and propagated. Since the phytoplankton is supplied, the aquaculture target organisms 60 to be cultivated below the floating body 50 can be fattened.

REFERENCE SIGNS LIST 1 aquaculture target organism fattening device 2 air bubble generation means 3 large diameter hose 4 small diameter hose 5 air supply means 6 battery 7 control unit 8 housing 9 hose mounting means 10 floating means 11 heavy anchor means 12 metal pipe 20 solar power generation means 21 Upper end opening 22 Lower end opening 31 Upper end opening 32 Lower end opening 40 Sea surface 41 Seabed 45 Sediments 50 Floating bodies 60 Aquaculture target organisms 80 Bubbles 81 Upstream 82 Fountain W Bubbles

Claims (4)

An aquaculture target organism fattening apparatus installed on a floating body floating on the sea surface above a culture target organism being cultured,
The aquaculture target organism fattening device includes:
Air bubble generating means including air supply means, a battery for supplying power to the air supply means, and a controller for controlling operation of the air supply means;
a housing in which the bubble generating means is installed;
The hose mounting means projecting from the housing in the direction above the sea surface is mounted with the upper end opening facing upward at a height above the sea surface, and the lower end opening can be placed sideways on the sea floor. A flexible large-diameter hose having a length and having a floating means and a heavy anchor means attached near the lower end opening;
A flexible small diameter hose having an upper end opening connected to the compressed air discharge port of the air supply means and a lower end opening to which a metal pipe is attached is inserted into the large diameter hose suspended in the sea. comprising a hose and
The buoyancy of the floating means and the heavy anchor are such that the vicinity of the lower end opening of the large-diameter hose can be buried substantially horizontally on the seabed by approximately half of the opening area of the lower end opening. set the subsidence force of the means,
By activating the bubble generating means by the control unit, bubbles are generated in the seawater in the large-diameter hose from the metal pipe of the small-diameter hose to cause an upward flow of water, thereby removing sediments and seawater on the seabed. An apparatus for fattening organisms to be cultured, characterized in that jetting is made from the upper end opening of the large-diameter hose. 2. The fattening apparatus for aquaculture target organisms according to claim 1, wherein a solar power generation means for charging the battery is installed above the housing. 3. The hose attachment means according to claim 1, wherein the hose attachment means has height direction adjustment means capable of vertically varying the height of the upper end opening of the large-diameter hose with respect to the housing. of aquaculture target biological fattening equipment. 3. The fertilizing apparatus for cultured organisms according to claim 1, wherein voltage measuring means capable of monitoring the state of charge of said battery is installed in said housing.

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