JP3306231B2 - Fish breeding aquarium - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an aquarium used for breeding fish and shellfish and treating wastewater.

[0002]

2. Description of the Related Art A fish breeding aquarium used for breeding of fish and shellfish, treatment of wastewater, and the like is provided with a breeding container and a water treatment contact material in the water tub by the inventors of the present application. It has been previously proposed as a circulating water tank that allows water flow and ventilation.

The circulating water tank has the advantages that the water quality of the entire water tank is uniform, and that the residual food and the like are discharged well by the flow and sediment hardly occurs. In particular, the water quality can be further improved by opening a plurality of branch pipes branched from the water supply pipe in the circulating water tank to form a uniform water flow.

[0004]

[Problem to be solved by the invention]
Depending on only a plurality of branch pipes branched from the water supply pipe, water escapes to the outer periphery due to the resistance of the fish and shellfish breeding container, algae attached or the incubator, water treatment contact material, etc. installed in the water tank. Therefore, there is a problem that the supply of oxygen and the supply of nutrients to living organisms in the breeding container or the contact material is easily hindered.

Further, even in the circulation water tank, it is impossible to completely prevent the sediment from staying at the bottom of the water tank, and the sediment deposited on the bottom of the water tank (remaining food, fish waste, sludge, etc.) is left as it is. In this case, water pollution may be caused, and it is necessary to discharge the water outside the tank. When sediment accumulates at the bottom of a conventional circulation water tank, manual discharge is required, and the discharge cleaning must be performed over the entire bottom of the water tank, which is cumbersome and inefficient. There was a problem.

[0006] Further, in order to increase the flow velocity, and to further improve the water permeation and air permeability and the cleaning effect, a large water permeation pressure is required at all times, and this has been a factor of increasing the water use cost.

According to the present invention, the water flow generated in the aquarium can be supplied to the inside of the aquarium irrespective of the breeding / adherence / incubator of living organisms installed in the aquarium and the presence of a water treatment contact material. A fish breeding aquarium that can maintain good water quality, efficiently discharge sediment at the bottom of the aquarium, or locally concentrate and deposit the sediment so that it can be easily removed and prevent water quality from deteriorating. The purpose is to obtain.

[0008]

In order to solve the above-mentioned problems, a first invention of the present application is to provide a check valve or a constant flow rate valve which opens a passage only to a water tank side in a water supply passage to a water tank. A flow-forming passage that branches off from the water supply passage and returns to the water supply passage again so as to bypass the check valve, and that a flow-forming pump or an automatic valve is provided in the flow-making passage. Features.

[0009] Similarly, the second invention of the present application is to reduce the energy of water jetted from a discharge pipe for water flow installed inside a water tank.
The installation height and the angle are limited as a discharge hole installation position suitable for transmitting the water tank bottom surface over a wide area and efficiently.

The installation height is 5 to 1 from the bottom of the water tank.
5 cm, the discharge angle is 0 ° horizontally when the discharge hole height is 5 cm, 15 °
It is characterized in that it is set in the range of 10 to 15 degrees downward in cm.

[0011] Similarly, in the third invention of this application, in order to efficiently collect the sediment at the bottom of the water tank into a plurality of drain receivers provided at intervals in the flow direction of the water flow, the corner with the outer wall is directed toward the center. Or a slope with the slope of the water tank bottom surface between the upstream drainage catcher and the downstream drainage catcher set at a slope angle of 1/50 to 1/200 toward the downstream side. It is characterized by having.

[0012]

According to the first aspect of the present invention, the flow can be easily formed simply by operating the flow forming pump for each water tank.
Thereby, the sediment in the water tank can be drained together with the water flow. At this time, by mixing air or oxygen into the water supply pipe, it is possible to supply oxygen necessary for breeding or the like.

According to the second aspect of the present invention, the energy of water jetted from the discharge pipe for water flow installed inside the water tank is transmitted to a wide area of the bottom of the water tank, and the movement of the sediment dispersed on the bottom of the water tank is controlled.
Effectively discharge. In this range of angles, the distribution ratio of water supply to the upper and lower water layers works well from the experimental results.
In particular, a shelter is installed in the upper layer, and the optimal water ratio adjustment that minimizes the effect of turbulence on the flow velocity of the entire water tank is naturally performed in this angle range.

According to the third aspect of the present invention, the sediment can smoothly flow along the inclined surface to the center of the bottom of the water tank and the drainage drain downstream, and the sediment can be efficiently collected from the drainage outlet of the drainage sink. It can be discharged.

[0015]

FIG. 1 shows an embodiment of a flow producing mechanism for producing a water flow in a water tank and discharging sediment and the like in the water tank.
(1) is a water supply pipe to the water tank (2).
Water tank (2) through a plurality of branched pipes (8) (8) ...
Water is constantly supplied to the inside, and a water flow is generated in the water tank (2). In the middle of this water supply pipe (1), the branch pipe
(8) On the upstream side, a check valve (3) is provided to allow water to pass only toward the outlet side to the water tank (2), and the check valve (3) is bypassed. A flow forming pipe (4) branched from the water supply pipe (1) is formed. This flow tube (4)
Is provided with a flow-forming pump (5), and its outlet side is joined again to the water supply pipe (1). That is, in this embodiment, the water is usually supplied to the water tank (2) only by the water supply pipe (1). However, when a flow such as a sediment is generated in the water tank (2) is required, the water is supplied to the water tank (2). By operating the flow pump (5), the water flow supplied into the water tank (2) can be increased. The check valve (3) prevents the water discharged from the flow pump (5) from flowing back.

FIG. 2 shows an embodiment of a flow forming mechanism for forming a water flow in a water tank and discharging sediment and the like in the water tank as in FIG. (1) is a water supply pipe to the water tank (2),
Water is constantly supplied into the water tank (2) through a plurality of branch pipes (8) (8)... Branched from the water supply pipe (1).
A water flow is generated inside. In the middle of the water supply pipe (1), a constant flow valve (20) is provided upstream of the branch pipe (8) so as to allow a constant flow of water to flow only toward the outlet side to the water tank (2). A flow forming pipe (4) branched from the water supply pipe (1) is formed so as to bypass the constant flow valve (20). In the middle of the flow pipe (4), an automatic valve (5) for flow generation is provided, and the outlet side thereof is connected to a water supply pipe again.
Merged with (1). That is, in this embodiment, the water is normally supplied to the water tank (2) only by the water supply pipe (1). By opening the valve (21)
(2) The flow of water supplied into the inside can be increased.

FIG. 3 shows another embodiment of the flow forming mechanism.
In addition to the flow-forming pipe (4) of FIG. 1, a circulation pipe (6) for connecting the water tank (2) with the flow-forming pump (5) of the flow-forming pipe (4) is provided. That is, when the flow pump (5) is driven, the water tank
(2) The water in the circulation pipe (6) is circulated again from the circulation pipe (6) to the water tank (2) via the flow pipe (4) and the water supply pipe (1), thereby changing the water supply amount without changing the water supply amount. (2) The water flow inside can be increased. In addition, this circulation pipe (6) also has a water tank
A check valve (7) for preventing backflow to the (2) side is provided. The flow pump can be operated manually or automatically by means of a timer device after ingestion of a large amount of excrement or residual food, and the operation time and number of operations can be set according to the amount of sediment. Can be set to

Even when the amount of water supply is zero, a water flow can be generated in the water tank (2). Therefore, an ejector (18) is provided at the inlet side of the water supply pipe (1) to pump oxygen, air, etc. By mixing in, oxygen can be supplied, which is also effective as an emergency circulation pump.

FIG. 4 shows a discharge port (16) branched from the water supply pipe (1).
The mounting height of the tank is 5 cm to 1 from the bottom (9) of the water tank (2).
Should be between 5 cm. This height is located at the bottom of the breeding container (19), and the energy ejected from the discharge hole (16) effectively acts on the movement and discharge of the sediment deposited on the bottom (9) of the water tank at the time of flow generation.

FIG. 5 shows a discharge port (1) branched from the water supply pipe (1).
The mounting angle of 6) should be horizontal when the mounting height is 5 cm from the bottom of the water tank and 10 to 15 ° downward when the mounting height is 15 cm. Such water flow in the downward direction and in the vicinity of the bottom surface facilitates the formation of a water flow, and the energy ejected from the discharge holes (16) is effectively converted into energy for forming a water flow.

FIG. 6 shows the structure of the bottom of the water tank (2). The bottom (9) is provided with a plurality of groove-shaped discharge receptacles (10) along the transverse direction at intervals in the flow direction of the water flow. Drainage ports (11), (11),... Are formed in the side wall of the drainage receptacle (10). The bottom surface (12) between each of the drainage ports (11) (11) is an inclined surface that decreases from the upstream drainage receiver (10) toward the downstream drainage receiver (10). The flow of the sediment to the drain outlets (11) (11) is promoted.

If the inclination of the inclined surface (12) is larger than 1/50, the difference between the depths inside the water tanks on the upstream side in the water flow direction becomes too large, and the water tank height as a whole is excessively high. It will be. This tends to cause problems in terms of cost and breeding management, and if it is smaller than 1/200, the effect of promoting the flow of the sediment to the drain due to the gradient cannot be sufficiently obtained due to the viscosity of the sediment and the frictional resistance with the bottom surface. .

On the other hand, when the gradient is in the range of 1/50 to 1/200, the flow resistance of the sediment with the bottom of the water tank is small, and the flow discharge action is favorably promoted for a long time without increasing the size of the water tank. Will be maintained.

Further, as shown in FIG. 7, the bottom portion (9) of the water tank has inclined surfaces (13) (13) whose corners with the outer wall (17) become lower toward the center of the bottom portion (9). . Also aquarium
The central part of (2) is partitioned by a partition (14) for circulating the water flow, which also serves as a support for supporting the pipe of the water supply pipe (1). Set bottom ridge (15) and bottom
The structure (9) and the inclined surfaces (13) and (13) of the corners are configured such that sediment cannot stay in the corners.

FIG. 8 shows a specific example of the water tank (2) having the above configuration. In this embodiment, the branch (8)
At the lower end, a discharge pipe traversing the water flow is provided, and water is supplied from a large number of discharge holes (16) formed in the discharge pipe.

[0026]

According to the first aspect of the present invention, the water flow to the water tank can be easily formed by driving the flow-forming pump, whereby the sediment in the water tank can be relatively reduced. There is an effect that it can be easily discharged.
At this time, the check valve discharges the entire amount to the water tank side without circulating the water sent out by the pump in the flow path again into the flow path, thereby enabling efficient flow generation.
Further, since the pump is operated only when necessary, the flow is made, there is no inconvenience of increasing the running cost. In addition, since only a flow-producing passage is added to each water supply passage, there is an effect that the piping is simplified as compared with a case where an independent flow-producing pipe is provided in each water tank from a water source.

When a metering valve is installed instead of the check valve and an automatic valve is installed instead of the flow pump, the same effect can be expected only by opening and closing the automatic valve. Further, the structure is simpler than that of the flow pump, and it can be put into practical use with a small capital investment. During normal breeding, the amount of breeding water can be set arbitrarily, and an appropriate amount of breeding water can be secured.

According to the invention of claim 2 of the present application, the energy of jetting water from the discharge pipe for water flow installed inside the water tank is effectively transmitted to a wide area of the bottom of the water tank, and the sediment dispersed on the bottom of the water tank is effectively removed. Effective for movement and discharge. At the same time, the movement of the water in the bottom layer of the aquarium is transmitted to the upper middle breeding container, which is suitable for supplying oxygen and nutrients uniformly to the organisms in the breeding container and the contact material.

Further, according to the invention of claim 3 of the present application, the sediment at the bottom of the water tank can be smoothly flowed along the inclined surface of the bottom surface and the side wall to the drainage drain downstream, and the drainage of the drainage drain can be discharged from the drainage outlet of the drainage drain. There is an effect that the sediment can be efficiently discharged collectively.

Further, the inclination of the inclined surface is set to 1/50 to 1/20.
By setting the range to 0, there is a remarkable effect that the discharging action of the sediment discharged along the inclined surface can be favorably promoted and maintained for a long time without increasing the size of the water tank.

[Brief description of the drawings]

FIG. 1 is a schematic piping diagram of an aquarium flow device showing an embodiment of the present invention.

FIG. 2 is a schematic piping diagram of an aquarium flow forming apparatus showing an embodiment of the present invention.

FIG. 3 is a schematic piping diagram of a water tank flow-forming apparatus showing another embodiment of the present invention.

FIG. 4 is a cross-sectional view of a water tank to which a water pipe is cut in a direction crossing the water flow and a branch pipe is attached.

FIG. 5 is a vertical sectional view of a water tank to which a water pipe is cut in a flow direction and a branch pipe is attached.

FIG. 6 is a cross-sectional view of a main part of the bottom of the water tank, cut in the flow direction of the water flow.

FIG. 7 is a cross-sectional view cut in a direction crossing a water flow.

FIG. 8 is a partially cutaway perspective view showing a specific example of the water tank of the present invention.

[Explanation of symbols]

 (1) Water supply pipe (2) Water tank (3) Check valve (4) Flow path (5) Flow pump (6) Circulation pipe (7) Check valve (8) Branch pipe (9) Bottom (10) Drainage drain (11) Drain outlet (12) Inclined bottom (13) Inclined surface (14) Partition wall (15) Bottom ridge (16) Discharge hole (17) Outer wall (18) Ejector (19) Breeding container (20) Constant flow valve (21) Automatic valve

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Kazuo Sano 1-18-3 Kamiogi, Suginami-ku, Tokyo (56) References JP-A-4-360636 (JP, A) (58) Fields studied (Int .Cl. ⁷ , DB name) A01K 63/00-63/04

Claims (3)

(57) [Claims] A non-return valve or a constant flow valve that opens a passage only to the water tank side is provided in the middle of a water supply passage to the water tank, and a flow-forming passage that branches from the water supply passage and returns to the water supply passage again. A check valve or a constant flow valve is provided so as to bypass the valve, and a flow pump or an automatic valve which is operated manually or automatically is provided in the flow path, and the flow rate is 3 to 3 at the bottom of the water tank.
A fish breeding aquarium characterized in that it is secured at 0 cm / sec. 2. The flow-forming discharge hole installed in the water tank has a height of 5 to 15 cm from the bottom of the water tank, and the discharge hole angle is horizontal 0 ° when the discharge hole height is 5 cm and downward when the discharge hole height is 15 cm. 10
A seafood breeding aquarium characterized by being set in a range of up to 15 mm. 3. The bottom surface of the water tank is inclined such that the corner portion with the outer wall becomes lower toward the center, or the bottom surface of the water tank between the upstream drain receiver and the downstream drain receiver faces the downstream. A seafood breeding aquarium characterized by having a slope of 1/50 to 1/200 and a lower slope.