JP2010057383A - Water tank apparatus for breeding plankton - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a water tank apparatus for breeding planktons, which prevents suction of planktons while carrying out water filtration and circulation. <P>SOLUTION: In the water tank apparatus for breeding planktons, water filtered and biologically treated by a filtration tank 20 is fed from a jet nozzle 31 adjusted to have the Coanda effect from a water tank wall surface to the water tank 10. The fed water is passed from the front of an inlet port 41 to prevent suction of jellyfishes, and causes a flow as a rotation current on the water tank wall surface to give a proper motor stimulation to floating organisms such as jellyfishes. The water supplied to the water tank 10 is sucked up together with food particles, discharges, or the like from the inlet port 41 as a potential flow by a suction mechanism, removes suspended solids in the water tank, incorporated with oxygen, returned to the filtration tank 20 and given to filtered microorganisms. When the suction mechanism is stopped during feeding, the water is returned from an upper overflow port to the filtration tank 20, a feed is not wastefully abandoned since the inlet port is isolated by a mesh and filtration, and biological treatment are continued. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a breeding aquarium apparatus in which functions necessary for compactness are condensed so that it can be installed in a general living space not considered as a breeding environment.

  Floating creatures such as jellyfish have low swimming ability and are said to be floating creatures drifting in the flow of seawater due to ocean currents and tides. If there is no water flow, floating creatures such as jellyfish may sink and die without being able to swim. Therefore, in order to breed and grow in an artificial environment such as an aquarium for a long period of time, it is necessary to provide an appropriate water flow that is suitable for the living environment of floating organisms such as jellyfish rather than a water-stopped state.

The simplest way to create an artificial water flow in the aquarium is to create a water flow using aeration, which is widely used in fish tanks. However, when an upward flow using aeration is created, depending on the shape of the jellyfish, air may accumulate in the umbrella, and the jellyfish may be deformed and damaged by floating air that has accumulated, and may die. is there.
However, in order to circulate the water flow, it is necessary to exhale and inhale, and the swimming mosquito is weak and easy to be sucked in from the intake port, which is a difficult problem for breeding jellyfish drifting in the water flow. Jellyfish may stick to the bottom of the sand even if a bottom filtration method (a method of spreading the suction over a wide surface by spreading sand from the bottom of the sand and sucking it under the sand) like a fish breeding tank. is there.

  Therefore, in the prior art, the suction part and the discharge part are arranged close to each other, and the method of creating a flow at the discharge part so as not to get close to the suction part or the suction from the suction port is performed, and the discharged water is overflowed. Methods such as a method of dropping the water into a filtration tank and circulating the water are known.

  For example, a floating creature breeding aquarium such as a jellyfish disclosed in JP-A-10-234250 has a drainage port and an air supply port in the middle of either the left or right side of the aquarium. An air supply port that releases air bubbles is installed below the drain port. By discharging bubbles from the air supply port, it is possible to easily create an appropriate water flow suitable for the living environment of the floating organisms stored in the aquarium, and to blow away the floating organisms in the aquarium approaching the drainage port, It is said that the floating organisms in the aquarium are prevented from being sucked into the drain and only the breeding water can be discharged from the drain.

JP-A-10-234250

The above-mentioned floating organism breeding aquarium disclosed in JP-A-10-234250 has the following problems.
The first problem is that a water flow is created in the water tank using aeration. In the floating organism breeding tank disclosed in Japanese Patent Laid-Open No. 10-234250, aeration is used to create a water flow in the tank. Although it is a side surface of the water tank, a large number of air bubbles are discharged into the water tank, and the jellyfish move on the water flow, so that the air bubbles easily enter the jellyfish umbrella. There was a problem that the jellyfish were killed by the buoyancy of the air collected in the jellyfish umbrella and the jellyfish were deformed or damaged.

The second problem is that the food given to the jellyfish floating organisms may be drained by the circulation system of the aquarium without being fed.
As the food given to the jellyfish floating organisms, live food or floating food is used, and if the food sinks to the bottom, floating organisms such as jellyfish cannot be fed. If the circulation system of the aquarium is one, there is a risk that even unfeeded food will be drained.

  The third problem is that the entire apparatus is likely to be large, and it is necessary to secure a dedicated space in consideration of the installation location of the water tank in advance. In order to allow the water tank to be installed in a general living space, it is preferable that the functions necessary for compactness are condensed. However, in the technique of JP-A-10-234250, necessary functions such as a filtration tank are separated. Therefore, the apparatus housing tends to be large, and it is necessary to secure a dedicated space in consideration of the installation location of the water tank in advance when installing the water tank in a general living space.

  The inventor of the present invention creates a rotating flow that flows along the inner peripheral wall of the aquarium from the bottom of the aquarium without using aeration in the breeding aquarium, while providing a spout and a suction port for water filtration and circulation. It is an object of the present invention to provide an aquatic organism breeding tank device capable of providing a water flow for preventing jellyfish inhalation to the front surface of a suction port.

  As a result of diligent research, the present inventor has created a rotating flow that flows along the inner peripheral wall of the aquarium without using aeration in the breeding aquarium as follows. This has led to the invention of a breeding aquarium device for floating organisms such as jellyfish, which can give a water flow for preventing jellyfish inhalation to the front of the suction port without being carried out.

In order to achieve the above object, the floating aquarium breeding aquarium apparatus of the present invention comprises:
A water tank having an opening on the upper surface of a substantially circular or pentagonal or more polygonal longitudinal section;
A filtration tank which is provided on the back side of the water tank and filters water received from the water tank;
An ejection mechanism is provided on the wall surface near the bottom of the water tank, receives the water filtered in the filtration tank, and ejects the water in the direction along the inner peripheral wall of the water tank through the ejection port;
A suction port is provided on the wall surface of the water tank and in front of the ejection direction from the jet port, and a suction mechanism that sucks water in the water tank through the suction port and delivers it to the filtration tank is provided. It is characterized by.

In the above configuration, the jet angle of the jet water flow from the jet port is adjusted so that the Coanda effect is obtained in which the water flow passes through the front surface of the suction port and becomes a water flow along the inner peripheral wall of the water tank. It is preferable that
Here, the Coanda effect refers to the property of a fluid that changes the direction of fluid flow along the surface of the object when the object is placed in the fluid flow.

  In addition, the spout has slits and small holes arranged in a line, etc., and the water flow to be ejected is made a directional water flow, and the water flow sucked from the suction port is made directional. It is preferable that the water flow does not have.

  Next, in the aquatic organism breeding aquarium apparatus of the present invention, an overflow port is provided near the upper part of the aquarium for overflow of water that has overflowed from the aquarium to the filtration tank at the time of overflow. When the amount of water ejected through the spout is greater than the amount of water sucked in, the water overflowing from the water tank moves from the water tank to the filtration tank through a mesh through which the fed food does not pass. It is preferable to devise.

Next, in the aquarium breeding aquarium apparatus of the present invention,
A rough mesh structure provided with a mesh of a size through which the floating organisms do not pass and the food of the floating organisms, food, excrement, etc. pass through the suction port,
In the overflow port, a fine mesh structure provided with a mesh of a size that does not allow the floating organisms to pass through and does not pass through the food,
When feeding the floating organisms, the suction mechanism is stopped to stop the suction of water into the filtration tank through the suction port, and only the overflow of water into the filtration tank through the overflow port is performed. , Preventing the fed bait from moving to the filtration tank,
During normal times other than when feeding the floating organisms, the suction mechanism is operated to suck water into the filtration tank through the suction port, and the food, food waste, excrement remaining after the feeding Etc. are preferably moved to the filtration tank.

  In the aquatic organism breeding tank device of the present invention, a submersible pump provided in the filtration tank is used as a power source for ejecting water in the ejection mechanism, and the filtration is used as a power source for sucking water in the suction mechanism. It can be set as the structure which uses an air lift pump in a tank.

  According to the floating organism breeding aquarium apparatus of the present invention, the circulation of water in the aquarium and the circulation of water in the filtration tank are divided into different systems, and are adjusted by the ejection amount and the suction mechanism adjusted by the ejection mechanism. The amount of inhalation can be adjusted independently, and it is suitable for floating organisms with low self-swimming ability such as jellyfish, zooplankton, phytoplankton, squid, octopus and crustacean larvae Can create water flow and breeding environment.

  Further, according to the aquatic organism breeding aquarium apparatus of the present invention, the water flow ejected from the ejection port forms a fluid in the aquarium, but the angle ejected from the ejection port passes through the front surface of the suction port and the wall surface due to the Coanda effect. The water flow from the jet outlet flows to the front of the suction port, and the floating organisms approaching the suction port do not approach the suction port due to the water flow from the jet port. It is possible to prevent the water in the water tank from being sucked into or sucked into the suction port by mistake, and the water in the water tank can be efficiently sucked from the entire periphery as a potential flow. In other words, floating organisms such as jellyfish do not accidentally approach the suction port while adopting a water circulation filtration system.

  According to the aquarium breeding aquarium apparatus of the present invention, the fed food stays in the aquarium only for the required time, and is not accidentally sucked into the filtration device, and still remains after the required time has passed. The food, food, excrement, etc., can be removed from the aquarium by suctioning and filtering into the filtration device.

According to the floating organism breeding aquarium apparatus of the present invention, both the ejection side and the suction side have power, but among the two power sources, a submersible pump is adopted as the ejection side power source in the aquarium. Without generating air bubbles, an air lift pump can be employed as a power source on the suction side to reduce the size of the entire apparatus and to reduce the operation noise.
In addition, by adopting an air lift pump as a power source, it is possible to appropriately supply oxygen, which is apt to be insufficient only by circulation by the submersible pump, into the water.

  Moreover, since the vertical section has a substantially circular shape or a polygonal shape with a pentagonal shape or more and an opening on the upper surface, the lighting equipment is arranged in a curved dead space so as not to disturb the breeding. Moreover, since it can arrange | position to the shortest distance on the wall surface of a water tank, irradiation efficiency is high and the arrange | positioned lighting fixture is not conspicuous.

  In addition, it is preferable to provide a temperature adjustment mechanism in the breeding aquarium apparatus. For example, by heating / cooling the filtration tank side with a heating / cooling device using a Peltier element or the like, it is possible to make a breeding water tank device that is small and hardly affected by room temperature.

  Hereinafter, embodiments of the aquatic animal breeding aquarium apparatus of the present invention will be described with reference to the drawings. However, the technical scope of the present invention is not limited to the specific applications, shapes and dimensions shown in the following embodiments.

An example of the basic configuration of the floating organism breeding aquarium apparatus of the present invention will be described.
FIG. 1 is a front view schematically showing a basic configuration of a floating organism breeding aquarium apparatus 100 according to the present invention as seen from the front.
FIG. 2 is a plan view schematically showing the basic configuration of the floating organism breeding aquarium apparatus 100 of the present invention as viewed from above.
FIG. 3 is a diagram schematically showing a longitudinal section of the water tank 10.
FIG. 4 schematically shows a state in which the water tank 10 on the front surface is removed and the configuration of the rear filtration tank 20 is viewed from the front.

  A floating organism breeding aquarium apparatus 100 according to the present invention includes a water tank 10, a filtration tank 20, a submersible pump 30 serving as a jetting mechanism, a spout 31, a pipe 32, an air lift pump 40 serving as a suction mechanism, a suction port 41, an air tube 42, Each of the coarse mesh structure 43, the overflow port 50, and the fine mesh structure 51 is provided. In addition, although illustration is abbreviate | omitted, the control apparatus which controls the submersible pump 30, the air lift pump 40, etc. is installed beside a water tank and is a thing smaller than a water tank.

  The aquarium 10 is a space for breeding floating organisms such as jellyfish, and is a water tank having a vertical cross section of a substantially circular shape or a polygon having a pentagon or more and an opening on the upper surface. In this example, the longitudinal section is substantially circular and has an opening on the upper surface. As will be described later, the water tank 10 is provided with an inlet / outlet called an outlet 31 and a suction inlet 41 near the bottom, and further, an outlet called an overflow outlet 50 near the upper part.

The aquarium 10 is entirely formed of a transparent glass material or an acrylic material, and is suitable for appreciating floating organisms such as jellyfish placed inside.
Since the water tank 10 has a substantially circular longitudinal section and has an opening on the upper surface, the water flow ejected from the ejection port 31 flows along this circular inner wall surface as described later, Circulating flow is likely to occur. In this example, the spout 31 is provided in the vicinity of the bottom of the water tank, but the position where the spout 31 is provided is not limited to the vicinity of the bottom in the water tank wall surface.

  The filtration tank 20 is a part that is provided on the back side of the water tank 10 and filters the water received from the water tank 10. The filter tank 20 is provided with a filter for filtering water and two power sources, a submersible pump 30 and an air lift pump 40. The filter is not particularly limited, and can be applied as long as it has a function of purifying water. For example, a fibrous lump such as cotton or sponge may be used, or a granular material such as sand, pebbles or brick pieces, or a porous material may be used. The body may be used. Furthermore, it may be a biological filter in which microorganisms having water purification ability are supported on a support such as a granular material.

In the configuration example shown here, the filtration tank 20 is divided into three cells, a filtration tank cell 21, a filtration tank cell 22, and a filtration tank cell 23, and each filtration tank cell has a purification function. Yes. All three filtration tank cells may adopt the same water purification means and repeat the same filtration three times. Moreover, you may employ | adopt a different water purification | cleaning means by each filtration tank cell. For example, water purification by physical filtration using a fibrous mass for the purpose of removing solids and suspensions as the filtration tank cell 21, and a porous granular solid filter medium in which microorganisms can easily propagate are used as the filtration tank cell 22. It is possible to combine water purification by biological treatment and water purification in which purified water is stored by supplying water with a submersible pump as the filtration tank cell 23.
There is a partition wall 24 that separates the filtration tank cell 21 and the filtration tank cell 22, and a partition wall 25 that separates the filtration tank cell 22 and the filtration tank cell 23. The lower part of the partition wall 24 is open, and water moves from the filtration tank cell 21 to the filtration tank cell 22 in the lower part. The upper end of the partition wall 25 is lower than the water line, and water moves from the filtration tank cell 22 to the filtration tank cell 23 in the form of overflowing the partition wall 25.

  The submersible pump 30 is a power source provided on the filtration tank 20 side, and an ejection mechanism that ejects water filtered in the filtration tank 20 in a direction along the inner peripheral wall of the water tank 10 through the pipe 32 and the ejection port 31. It is. A jet port 31 is provided on the wall surface near the bottom of the water tank 10, and a jet water flow is jetted through the jet port 31. The spout 31 has a slit-like shape and small holes arranged in a line, and the squirting water flow is a directional water flow. The jet angle of the jet water flow from the jet port 31 will be described later.

The air lift pump 40 is a power source provided on the filtration tank 20 side, and is a suction mechanism that sucks water in the water tank 10 through the suction port 41 and delivers it to the filtration tank 20. An air tube 42 is provided in parallel to the side. A suction port 41 is provided on the wall surface near the bottom of the water tank 10, and when a rising water flow is created in the air lift pump 40 on the filtration tank 20 side connected to the suction port 41, It has a mechanism to suck in water. The suction port 41 has a wider area than the cross-sectional area of the air lift pump 40, and the suction of water allows the surrounding water to be sucked slowly.
In addition, by adopting the air lift pump 40 as a power source, it is possible to appropriately supply oxygen, which is apt to be insufficient only by circulation by the submersible pump, into the water.

  In addition, although the jet outlet 31 and the suction inlet 41 are provided in the vicinity, the suction inlet 41 is provided in the wall surface ahead of the ejection direction from the jet outlet 31 about the positional relationship. This is devised so that the water flow from the jet outlet passes through the front surface of the suction port 41 by the Coanda effect and becomes a water flow along the inner peripheral wall of the water tank 10 as described later.

  The overflow port 50 is a port provided near the upper part of the water tank 10 and is a passage through which water overflows from the water tank 10 side to the filtration tank 20 side when the water tank 10 overflows. When overflowing, the amount of water stored in the aquarium 10 increases when the amount of water ejected through the spout 31 is greater than the amount of water sucked in through the inlet 41, and water is The case where it overflows is assumed. When this overflow occurs, water is moved from the water tank 10 to the filtration tank 20. In particular, as will be described later, when the air lift pump 40 is stopped during feeding and the suction of water from the suction port 41 is stopped, this overflow usually occurs. The overflow port is provided with a check valve so as to be one-way from the water tank side to the filtration tank side.

  The control device is a part that performs various controls such as drive control and temperature control of two power sources, the submersible pump 30 and the air lift pump 40 (not shown).

Next, the Coanda effect obtained with the floating organism breeding aquarium apparatus 100 of the present invention will be described.
The Coanda effect is a fluid property that changes the direction of fluid flow along the surface of an object when the object is placed in the fluid flow. The breeding aquarium apparatus 100 uses this Coanda effect to prevent a floating organism such as jellyfish from being sucked into the suction port 41 by mistake while adopting a water circulation filtration system.

FIG. 5 is a diagram schematically showing the jet port 31 and the direction of the jet water flow, the bottom surface of the water tank 10, the positional relationship between the suction ports 41, and the Coanda effect.
As shown in FIG. 5, the angle of jetting from the jet port 31 so as to pass through the front surface of the suction port 41 is adjusted, and the water flow jetted from the jet port is from the inner wall surface 11 to the inner wall of the water tank 10 by the Coanda effect. The direction of the flow of the water flow changes along the surface of the water and becomes a flow that circulates along the inner wall surface.

The suction port 41 has a wider area than the cross-sectional area of the air lift pump 40, and the suction of water is such that the surrounding water is sucked slowly and has no directionality as a potential flow. Therefore, if the cross-sectional area of the air lift pump 40 and the area / shape of the suction port 41 are devised so as not to affect the flow direction of the squirt water flow as much as the Coanda effect, the squirt water flow passes through the front surface of the suction port 41. Thus, the water flows around the inner peripheral wall surface of the water tank 10 from the fluid inner wall surface 11.
Thus, since the jet water flow from the spout 31 flows in front of the suction port 41, the floating organism does not approach the suction port 41 due to the water flow from the spout 31, and the floating organism erroneously enters the suction port 41. You will not be sucked into or sucked into.

  FIG. 6 is a view schematically showing a jet water flow that circulates around the inner wall surface in the water tank 10. As shown in FIG. 6, the jet water flow generally circulates along the inner wall surface in the water tank 10, but as described in FIG. 5, the water flow that does not directly approach the suction port 41 and the jet port 31. As long as floating organisms float in the water flow, no accidental suction accidents occur.

Next, the filtration process will be described.
In the configuration example shown in the first embodiment, an air lift pump 40 connected to the suction port 41 is provided in the filtering device 20, and air bubbles are supplied to the air lift pump 40 by an air tube 42. As the air bubbles rise in the water due to their buoyancy, an upward flow is generated in the air lift pump 40. One end (suction port side) of the air lift pump 40 is a suction port 41, and the other end (discharge port side) is a discharge port 44 to the filtration tank 20. That is, the air lift pump 40 sucks the water in the water tank 10 and pumps it into the filtration tank 20.

  The mechanism of the filtration tank 20 is not particularly limited, but in the configuration example shown in the first embodiment, as shown in FIG. 7, the filtration tank 20 is divided into three regions: a filtration tank cell 21, a filtration tank cell 22, and a filtration tank cell 23. Each cell is provided with a filtering device such as a filter (not shown in detail). In the configuration example shown in the first embodiment, the water pumped from the water tank 10 is first put into the filtration tank cell 21. It is filtered while flowing through the filtration tank cell 21 from top to bottom, further filtered while moving the filtration tank cell 22 from bottom to top, and further filtered while moving the filtration tank cell 23 from top to bottom. Go. The filtration tank cell 23 is provided with an underwater pump 30, and is ejected from the ejection port 31 through the pipe 32 from the underwater pump 30. As shown in FIG. 6, the jetted water flow becomes a jetted water flow that circulates around the inner wall surface in the water tank 10, and is a circulation filtration system that is sucked from the suction port 41 again.

Next, a process for adjusting the amount of water in the water tank 10 will be described.
The floating aquarium breeding aquarium apparatus 100 according to the present invention is provided with a water tank 10 and a filtration tank 20 on the back, and power sources (an underwater pump 30 as an ejection mechanism and an air lift pump 40 as a suction mechanism) for controlling the respective water flows are also separate. There are two in the two, both of which are separate systems. Therefore, there may be a case where the amount of water ejected into the water tank 10 through the spout 31 and the amount of water pumped from the water tank 10 through the suction port 41 are not balanced. In particular, as will be described later, during feeding, the operation of the air lift pump 40, which is a suction mechanism, is intentionally stopped to stop the pumping of water into the filtration tank 20, and therefore overflow may occur. In the floating aquarium breeding aquarium apparatus 100 of the present invention, the amount of water in the aquarium 10 can be adjusted as follows.

(1) When the amount of squirted water and the amount of sucked-in water are balanced When the amount of squirted water and the amount of sucked-in water are balanced, the circulation in the water tank 10 of FIG. 6 and the filter tank 20 of FIG. As shown in the circulation, water circulates, and in particular, an equilibrium is maintained without increasing or decreasing the amount of water in the water tank 10.

(2) When the amount of ejected water is larger than the amount of sucked water When the amount of ejected water from the outlet 31 is larger than the amount of sucked water from the inlet 41, the amount of water stored in the aquarium 10 increases, and the water line of the aquarium 10 The situation reaches the height of the overflow port 50 provided near the upper part of the water tank 10. The overflow port 50 is a passage from the water tank 10 side to the filtration tank 20 side. When the water line on the water tank 10 side reaches the height of the overflow port 50, the water overflowing from the water tank 10 side passes to the filtration tank 20 side. . In this configuration example, the overflow port 50 is located in the upper part of the filtration tank cell 21, and the filtration process in the filtration tank 20 shown in FIG. 7 is performed.

(3) When the amount of ejected water is less than the amount of sucked water When the amount of ejected water from the outlet 31 is less than the amount of sucked water from the inlet 41, the amount of water stored in the aquarium 10 decreases, and the water line of the aquarium 10 On the other hand, the water line of the filtration tank 20 goes up. When the water line on the water tank 10 side is lowered, the water pressure applied to the bottom of the water tank 10 is decreased, and the water pressure at the jet port 31 is decreased. When the submersible pump 30 pushes out the jet water flow from the spout 31, the water pressure applied to the spout 31 is a load, but this load is reduced, and the amount of water ejected from the spout 31 by the submersible pump 30 increases. It becomes. Moreover, if the water line of the filtration tank 20 goes up, the water pressure near the bottom face of the filtration tank 20 will rise, and the pressure on the suction side of the submersible pump will increase. For this reason, the suction energy of the submersible pump 30 is small, and the amount of water ejected from the spout 31 by the submersible pump 30 increases. That is, when the amount of squirting water is less than the amount of sucked water, the water line of the water tank 10 is lowered, and when the water line of the filtration tank 20 is raised, the addition of the pumping capacity of the submersible pump is reduced. It becomes like this. In addition, a check valve is provided at the overflow port so that it is one-way from the water tank side to the filtration tank side. Has been.

Next, the device for feeding will be described.
Since floating organisms such as jellyfish prey on other zooplankton, food is often small live food or floating food. A fairly small case is also assumed. If the bait is pumped into the filtration tank 20, the bait is wasted, and thus a device for preventing the bait from being sucked from the suction port 41 is necessary. On the other hand, in the aquarium, there are unnecessary items that need to be removed for various reasons, such as scales, garbage, and uneaten food. The size of these unnecessary items may be equal to or larger than the size of the food. Therefore, it is not sufficient to provide a fine mesh structure that does not allow food to pass through the suction port 41. Therefore, the present invention is devised as follows.

First, in the suction inlet 41, the coarse mesh structure 43 provided with the mesh | network of the magnitude | size through which a floating organism does not pass and a floating food, excrement, etc. pass is provided. Further, in the overflow port 50, a fine mesh structure 51 having a mesh size that does not allow floating organisms to pass through and does not pass floating bait is provided.
That is, the suction port 41 does not allow the floating organisms themselves to pass through but allows food and unnecessary materials to pass through. The overflow port 50 does not pass through both the floating organisms and the food.

  Here, at the time of feeding floating organisms, the air lift pump 40 that is a suction mechanism is stopped, and the suction of water into the filtration tank through the suction port 41 is stopped. Here, at the time of feeding floating organisms, it is necessary to stop sucking from the suction port to prevent the waste from being thrown away wastefully. However, since there are two circulation systems, the air lift pump 40 is stopped and sucked. Even if the suction from the mouth is stopped, the ejection through the spout 31 continues, so the flow necessary for the floating organisms does not stop, the amount of water stored in the water tank 10 increases, overflow occurs, and the flow into the filtration tank It will flow into. Here, since the overflow port 51 has the fine mesh structure 52, the suspension of finer particles and water-soluble harmful substances can be processed in the filtration tank without wasting waste. It has become.

  Even when the suction of water into the filtration tank through the suction port 41 is stopped, it is necessary to provide a squirting water stream as a water stream for the survival of floating organisms such as jellyfish, and the like. However, the amount of water stored in the water tank 10 increases and overflow occurs, but overflow of the water to the filtration tank 20 through the overflow port 51 is possible, and the fed bait overflows. The food stays in the water tank 10 because it does not pass through the fine mesh structure 52 of the mouth 51.

  On the other hand, during normal times other than during feeding, the air lift pump 40, which is a suction mechanism, is operated to suck water into the filtration tank 20 through the suction port 41, including unnecessary food remaining after feeding. Is moved to the filtration tank 20.

  With the above-described device, the fed food is not pumped to the filtration tank 20 at the time of feeding, and the feed is not wasted. Unusual items including uneaten food are pumped to the filtering tank 20 at normal times other than feeding. Therefore, the breeding environment of the water tank 10 can be maintained satisfactorily.

  In addition, although illustration was abbreviate | omitted, it is preferable to set it as the structure which provides the temperature control mechanism in the breeding water tank apparatus. For example, if the filtration tank side is heated and cooled by a heating / cooling device using a Peltier element or the like, a rearing water tank device that is small and hardly affected by room temperature can be obtained.

The floating organism breeding aquarium apparatus 100a according to Example 2 is devised so that illumination can be provided around the aquarium 10 so that the floating organisms can be appreciated more beautifully.
FIG. 8 is a diagram schematically showing a configuration example in which a large number of LEDs 60 serving as illumination are arranged around the water tank 10 as viewed from the front in the longitudinal section of the water tank 10. The illustration of the control device of the LED 60 is omitted.

Since the aquarium 10 is a transparent acrylic plate or the like, the light emitted from the surrounding LED 60 is clearly projected into the aquarium 10, and the floating organisms are illuminated, as if the floating organisms swim fantastically with various colors. looks like.
In this example, an LED substrate on which a plurality of LEDs 60 are mounted is arranged in four directions around the water tank 10, but various LED arrangement patterns and the like are possible.
More interesting appreciation is possible by changing the color shade of the LED 60 or changing the lighting / flashing pattern.

  With the lighting device as described above, floating organisms can be lifted up beautifully, and there are species of floating organisms, such as jellyfish, that have dermionic algae in their bodies. Because it is made, it is useful for growth.

  In addition, since direct water irradiation may cause the water temperature of the water tank to rise too much, it is effective to give the LED 60 that does not have much heat from the vicinity in a state with high irradiation efficiency. In addition, since natural light includes wavelengths that are not necessary for photosynthesis, LED60 illumination can further illuminate by selecting only the vicinity of 450 nm (blue) and 660 nm (red) necessary for photosynthesis. Effective irradiation can be performed.

  As mentioned above, although the preferable Example was illustrated and demonstrated about the breeding aquarium apparatus of the floating organism of this invention, it will be understood that various changes are possible without deviating from the technical scope of this invention. .

The floating organism breeding aquarium apparatus of the present invention can be applied to a breeding aquarium apparatus that breeds and raises floating organisms such as jellyfish for a long period of time. Moreover, it can be applied as a display device that beautifully shows the breeding space for floating organisms such as jellyfish. In addition to jellyfish, zooplankton, phytoplankton, squid, octopus, crustacean larvae, and other organisms that have low self-swimming ability can be variously There is something.
Also, by combining the lighting device, the inside of the breeding aquarium can be shown beautifully, and it is possible to further improve the growth environment by selectively giving the wavelength necessary for growth without changing the temperature of the aquarium. it can.

The front view which shows typically a mode that the basic structure of the breeding aquarium apparatus 100 of the floating organism of this invention was seen from the front. The top view which shows typically a mode that the basic composition of the breeding tank apparatus 100 of the floating organism of this invention was seen from the upper surface The figure which showed the longitudinal section of water tank 10 typically The figure which showed typically a mode that the water tank 10 in the front was removed and the structure of the back filtration tank 20 was seen from the front. The figure which shows typically the spout 31 and the direction of the jet water flow, the bottom face of the water tank 10, the positional relationship of the suction inlet 41, and the Coanda effect The figure which shows typically the spouting water flow which circulates the inner wall surface in the water tank 10. The figure which shows typically the mode of the circulation of the water in the filtration tank 20 The figure which shows typically a mode that the example of a structure which arranged many LED60 used as illumination around the water tank 10 was seen from the front in the longitudinal cross-section of the water tank 10.

Explanation of symbols

100 Fish tank equipment for floating organisms 10 Water tank 20 Filtration tank 21 Filtration tank cell 1
22 Filtration tank cell 2
23 Filtration tank cell 3
24 Bulkhead 1
25 Bulkhead 2
30 Submersible pump 31 Jet port 32 Pipe 40 Air lift pump 41 Suction port 42 Air tube 43 Coarse mesh structure 44 Discharge port 50 Overflow port 51 Fine mesh structure 60 LED

Claims (6)

A water tank having an opening on the top surface of a substantially circular or pentagonal or more polygonal longitudinal section;
A filtration tank which is provided on the back side of the water tank and filters water received from the water tank;
A jetting mechanism provided on the wall surface of the water tank, receiving the water filtered in the filtration tank, and jetting it in a direction along the inner peripheral wall of the water tank through the jetting port;
A suction port is provided in a wall surface in the ejection direction from the ejection port in the water tank, and a suction mechanism is provided which sucks water in the water tank through the suction port and delivers it to the filtration tank. Aquarium equipment for floating organisms.   The jet angle of the jet water flow from the jet port is adjusted so that the Coanda effect is obtained in which the water flow passes through the front surface of the suction port and becomes a water flow along the inner peripheral wall of the water tank. The aquatic animal breeding aquarium apparatus according to 2.   The aquatic organism breeding aquarium apparatus according to claim 1 or 2, wherein the water flow ejected from the ejection port is a water flow having directionality, and the water flow sucked from the suction port is a water flow having no directionality. Near the upper part of the water tank, an overflow port through which the water overflowed from the water tank to the filtration tank at the time of overflow passes,
Claims wherein water overflowing from the water tank is moved from the water tank to the filtration tank when the amount of water jetted through the jet outlet is larger than the amount of water sucked through the suction port. Item 4. The floating aquarium apparatus for floating organisms according to any one of Items 1 to 3. In the suction port, provided with a coarse mesh structure provided with a mesh of a size through which the floating organisms do not pass, and the bait of the floating organisms, food, excrement, etc. pass through,
In the overflow port, a fine mesh structure provided with a mesh of a size that the floating organisms do not pass and does not pass through the food,
When feeding the floating organisms, the suction mechanism is stopped to stop the suction of water into the filtration tank through the suction port, and only the overflow of water into the filtration tank through the overflow port is performed. , Preventing the fed bait from moving to the filtration tank,
During normal times other than when feeding the floating organisms, the suction mechanism is operated to suck water into the filtration tank through the suction port, and the food, food waste, excrement remaining after the feeding The floating water tank apparatus according to any one of claims 1 to 4, wherein, etc. are moved to the filtration tank.   A submersible pump provided in the filtration tank is used as a power source for ejecting water in the ejection mechanism, and an air lift pump for generating a rising water flow in the filtration tank is used as a power source for sucking water in the suction mechanism. The breeding aquarium apparatus for floating organisms according to any one of claims 1 to 5, which is configured.

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