JP5593057B2 - Aquarium - Google Patents

Description

The present invention relates to a water tank having a filtration system for purifying water by circulating water passes through the filter medium.

  In order to allow fishery products to survive for a long period of time in various tanks such as onshore stationary tanks or tanks on live fish transport vehicles, the water temperature in the tank should be kept constant and the dissolved oxygen concentration in the water kept constant. And at least three elements to keep the water in the aquarium clean.

  These three elements can be easily satisfied if the situation is such that fresh water can be constantly supplied into the aquarium. However, in a situation where fresh water cannot always be supplied, it is necessary to provide a dedicated device in the water tank in order to satisfy all the above three factors.

  About the point which keeps the temperature of the water in a water tank constant, it can achieve comparatively easily by using a heat exchanger. In order to keep the dissolved oxygen concentration in the water constant, it is achieved by replenishing natural oxygen in the process of circulating the water in the aquarium or by supplementing oxygen using an oxygen cylinder. Can do. On the other hand, with respect to the point of keeping the water in the water tank in a clean state, it is generally performed by providing a filtration tank with a filter medium in the water circulation path and passing the water through the filter medium arranged in the filter tank. Is.

  However, in order to purify impurities such as excrement generated in the water tank due to the metabolic activity of seafood with the filter medium, it is necessary to sufficiently bring the circulating water into contact with the filter medium, resulting in the need for a large filter tank. . In addition, in the conventional aquarium, the live fish tank for storing seafood and the filtration tank are configured as separate bodies, so that the entire apparatus becomes bulky due to the existence of piping equipment connecting each tank, making it difficult to secure the installation location. There was a problem of becoming. Furthermore, in order to circulate water between the live fish tank and the filtration tank that are separated and separated, it is necessary to use a pump having a considerable output, which is disadvantageous from the viewpoint of energy cost.

  Therefore, recently, a stationary fish tank for live fish farming has been developed in which a live fish tank, a filtration tank, an impurity separation tank, a temperature adjustment tank, a pump tank, and the like are integrally formed and water is circulated between them by an axial pump. (For example, refer to Patent Document 1 below.)

  That is, in the invention described in Patent Document 1, a water tank is miniaturized by integrally arranging a filtration tank on an end side surface of a live fish tank. Moreover, the energy cost required for water circulation is reduced by arranging the live fish tank and the filtration tank adjacent to each other.

JP 2001-258423 A

  Certainly, the invention described in Patent Document 1 can achieve a certain size reduction and energy saving of the water tank. However, in general, a space for installing a stationary water tank or the like is often limited, and when the filtration tank is integrally arranged on the side surface of the end of the live fish tank, the area occupied by the live fish tank in the entire water tank decreases.

  In addition, the impurity separation tank, temperature control tank, pump tank, etc. can be downsized to some extent, but a large filtration tank is indispensable in order to obtain sufficient purification performance. The problem of reducing the area occupied by live fish tanks becomes more serious due to the installation of the tank.

  The present invention was developed to solve the above technical problem, and provides a novel filtration system capable of improving the area occupied by the live fish tank relative to the entire aquarium, and a water tank equipped with this filtration system. Objective.

Aquarium of the invention is to circulate water in the water tank, a water tank having a filtration system for purifying the water by passing the circulating water to the filter medium, the filtration system, active fish several filtration chambers Provided at the bottom bottom of the tank, a foam separation tank is arranged at one end of the live fish tank, the filter medium is arranged in each filtration chamber, and when the circulating water passes through each filtration chamber in turn, the water is filtered The filtration chambers communicate with each other so that the filter medium passes from the upper surface to the lower surface or the lower surface to the upper surface in the chamber, and the bottom wall of the live fish tank also serves as a wall that partitions the upper surface of each filtration chamber The foam separation tank communicates with the first filtration chamber through a communication hole so that water is introduced from the foam separation tank to the upstream first filtration chamber, and the communication hole is connected to the foam separation tank. There is a space above the bottom surface, and the top surface of the filter medium of the first filtration chamber Characterized in that provided between the bottom wall of the live fish tank.

That is, the aquarium of the present invention improves the exclusive area of the active fish tank relative to the entire aquarium by providing a plurality of filtration chambers in which the filter medium is disposed at the bottom bottom of the active fish tank.

Here, the thickness of the filter chamber provided in the bottom lower part of the live fish tank is large, the higher the installation position of that amount live fish tank, for example, problems workability in such land stationary water tank has Tsu gutter like deteriorates occurs. Therefore, in providing a filtration tank at the bottom bottom of the live fish tank, relatively thin filter media are widely arranged.

  By the way, if the passing speed of the circulating water with respect to the filter medium is too fast, the chance of contact with the water filter medium decreases, and a sufficient purification action cannot be obtained. On the other hand, if the passing speed of the circulating water through the filter medium is too slow, the filter medium is likely to be blocked. This clogging of the filter medium causes the bacteria which are inhabited in the filter medium and decompose the pollutants caused by the excrement etc., so that a sufficient purification action cannot be obtained. In other words, the passing speed of the circulating water through the filter medium includes an appropriate speed according to the type of the filter medium and the density.

  Since the water circulating in the water tank keeps a constant circulation amount by a pump or the like, if the volume of the filter medium to be used is the same, the thicker the filter medium is arranged in the direction of the circulating water, the more the filter medium is used. Water passage speed is theoretically faster. On the other hand, the thinner the filter medium is arranged in the direction of circulating water, the slower the passing speed becomes.

  Therefore, when the filter tank is provided at the bottom of the bottom of the live fish tank, when a relatively thin filter medium is simply arranged widely, the passage speed of water with respect to the filter medium becomes too slow and the filter medium is easily blocked.

  If you simply want to increase the water passage speed through the filter media, you can increase the pump output and increase the water circulation rate. However, this method has disadvantages such as an increase in energy cost by increasing the output of the pump, a decrease in the chance of water contact with the filter medium, and a burden on seafood in the live fish tank.

Therefore, in the water tank of the present invention, a plurality of filtration chambers are provided at the bottom bottom of the live fish tank, the filter medium is disposed in each filtration chamber, and when the circulating water sequentially passes through each filtration chamber, the water is in each filtration chamber. By connecting each filtration chamber so that it passes in either direction from the upper surface to the lower surface of the filter medium or from the lower surface to the upper surface, the passing speed of the circulating water to the filter medium is controlled, thereby ensuring a sufficient purification effect. It is.

In providing a plurality of filtration chambers at the bottom bottom of the live fish tank, the filtration chamber may be configured separately from the live fish tank. However, in view of the simplification of the aquarium structure and the handleability of the aquarium , in the aquarium of the present invention , it is preferable to integrally configure the filtration chamber and the live fish tank. In the water tank of the present invention , it is not always necessary to provide a plurality of filtration chambers at the entire bottom of the bottom of the live fish tank, and a plurality of filtration chambers may be provided at a part of the bottom of the bottom of the live fish tank as long as necessary purification performance is obtained. Should be provided.

In addition, if the thickness of the filter medium is the same, the greater the number of filtration chambers, the faster the water passage speed through the filter medium, and the smaller the number of filtration chambers, the slower the passage speed. That is, in the water tank of the present invention, the filtration rate can be controlled and adjusted to an appropriate filtration rate by increasing or decreasing the number of filtration chambers. Therefore, the number of the filtration chambers in the water tank of the present invention is not particularly limited as long as an appropriate filtration rate can be obtained. Generally, by providing about 2 to 5 filtration chambers, it is possible to obtain a filtration rate that is normally appropriate.

  In communicating with each filtration chamber, a communication path including a pipe or a passage communicating with each filtration chamber, or a communication hole penetrating a side wall partitioning adjacent filtration chambers is provided. Here, the communication medium or communication hole for introducing water into the filtration chamber is provided above the upper surface of the filter medium disposed in the filtration chamber, and the communication medium or communication hole for discharging water from the filtration chamber is provided in the filtration chamber. By providing it below the lower surface, the circulating water can be passed from the upper surface of the filter medium toward the lower surface. On the contrary, a filter medium in which a communication passage or a communication hole for introducing water into the filtration chamber is provided below the upper surface of the filter medium disposed in the filtration chamber, and a communication path or a communication hole for discharging water from the filtration chamber is disposed in the filtration chamber. By providing it above the lower surface, the circulating water can be passed from the lower surface of the filter medium toward the upper surface.

The filter medium disposed in each filtration chamber is not particularly limited as long as it can pass water and has a function of purifying water. Specific examples of the material constituting the filter medium include wool, sponge, ceramic, activated carbon, zeolite, gravel, sand, coral, and barley stone. In the water tank of the present invention , one or more types may be appropriately selected from these materials to configure the filter medium, and different filter media may be disposed in each filtration chamber.

  By the way, generally, the filtering means for passing the circulating water from the upper surface to the lower surface of the filter medium is called normal filtration, and the filtering means for passing the circulating water from the lower surface of the filter medium to the upper surface is called reverse filtration. Substances that pollute the water in the aquarium include those that float and sink. That is, according to the normal filtration, the pollutants sinking in the water can be efficiently captured, and according to the reverse filtration, the pollutants floating in the water can be efficiently captured.

Therefore, in the water tank of the present invention , it is preferable that the filtration chambers communicate with each other so that the direction in which the water passes through the filter medium changes each time the circulating water passes through the filtration chambers. If comprised in this way, water can be purified efficiently.

  ADVANTAGE OF THE INVENTION According to this invention, the occupation area of the live fish tank with respect to the whole water tank can be improved.

FIG. 1: is the top view (a) which shows the water tank 1 of this invention provided with the filtration system of this invention, and its AA sectional drawing (b). 2 is a cross-sectional view taken along the line BB in FIG. 1 (a) and a cross-sectional view taken along the line CC (b). FIG. 3 is an explanatory diagram (a) showing a state of water passing through a relatively thick filter medium, and an explanatory diagram (b) showing a state of water passing through a relatively thin filter medium. FIG. 4 is an explanatory diagram showing the state of water passing through the filter medium in the filtration system of the present invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to this embodiment.

  Fig.1 (a) is a top view which shows the water tank 1 of this invention provided with the filtration system of this invention, FIG.1 (b) is the AA sectional drawing. 2A is a cross-sectional view taken along the line BB in FIG. 1A, and FIG. 2B is a cross-sectional view taken along the line CC in FIG.

  As shown in FIGS. 1 and 2, the aquarium 1 in the present embodiment includes a live fish tank 2 and a plurality of (three chambers in the present embodiment) filtration chambers 3 (first chambers) arranged on the bottom bottom surface of the live fish tank 2. 1 filtration chamber 3a, second filtration chamber 3b, third filtration chamber 3c), filter tank 5 and foam separation tank 6 arranged side by side at one end of the live fish tank 2, and inside the tank at the other end of the live fish tank 2 It consists of the pump tank 7 arrange | positioned. Each of these tanks is divided for each tank.

  The live fish tank 2 can store an amount of water according to its volume. In the aquarium 1 of the present embodiment, fish and shellfish are farmed in the live fish tank 2.

  The filter tank 5 communicates with the live fish tank 2 through two communicating holes 51 (51a, 51b), and each communicating hole is provided with a bag filter 52 (52a, 52b). That is, relatively large contaminants contained in the water passing through the communication hole are first physically filtered by the bag filter 52 (52a, 52b).

  The foam separation tank 6 communicates with the filter tank 5 through the communication hole 61. This foam separation tank 6 is a series of two foam separation systems 6a, 6b, and a foam generation device 62 (62a, 62b) for generating fine bubbles is formed below each foam separation system 6a, 6b. Prepare. In addition, an openable / closable foam separation cover 63 is provided on the top of the foam separation tank 6. Further, a sludge discharge pipe 64 is connected to the upper part of the foam separation cover 63 for letting out contaminants (mainly sludge) floating by the foam generated by the foam generator 62 to the outside.

  Of the plurality of filtration chambers 3 (3 a, 3 b, 3 c), the first filtration chamber 3 a communicates with the foam separation tank 6 through a communication hole 31.

  Filter media 4 (first filter media 4a, second filter media 4b, and third filter media 4c) are disposed in the plurality of filtration chambers 3 (3a, 3b, 3c), respectively. In the filtration chamber 3, the filter medium 4 is laid on a slat-like installation base 8 (8 a, 8 b, 8 c) that does not prevent water flow. The filter medium 4 disposed in the filtration chamber 3 captures fine pollutants contained in the circulating water, and decomposes the pollutants by the metabolic activity of bacteria living in the filter medium 4.

  Although each filtration chamber 3 (3a, 3b, 3c) is divided by the side wall, the circulating water passes through the communication holes 31, 32, 33, 71 provided in the side wall, and the first filtration chamber 3a. The second filtration chamber 3b and the third filtration chamber 3c are passed in this order.

  More specifically, the communication hole 31 for introducing water from the foam separation tank 6 to the first filtration chamber 3a is provided above the upper surface of the first filter medium 4a disposed in the first filtration chamber 3a. The communication hole 32 for introducing water from the filtration chamber 3a into the second filtration chamber 3b is provided below the lower surface of the first filter medium 4a disposed in the first filtration 3a chamber. That is, in the first filtration chamber 3a, the circulating water passes from the upper surface of the first filter medium 4a toward the lower surface.

  The communication hole 33 for introducing water from the second filtration chamber 3b into the third filtration chamber 3c is provided above the upper surface of the second filter medium 4b disposed in the second filtration chamber 3b. That is, in the second filtration chamber 3b, the circulating water passes from the lower surface of the second filter medium 4b toward the upper surface.

The communication hole 71 for introducing water from the third filtration chamber 3c to the pump tank 7 is provided below the lower surface of the third filter medium 4c disposed in the third filtration chamber 3c. That is, in the third filtration chamber 3c, the circulating water passes from the upper surface of the third filter medium 4c toward the lower surface.

  Accordingly, in the present embodiment, the direction of water passing through the filter medium 4 changes each time the filter chambers 3 (3a, 3b, 3c) pass through, and the filter chambers 3 (3a, 3b, 3c) are changed. The filtration of the passing water is forward filtration in the first filtration chamber 3a, reverse filtration in the second filtration chamber 3b, and forward filtration in the third filtration chamber 3c.

  The pump tank 7 communicating with the third filtration chamber 3 c in the filtration chamber 3 (3 a, 3 b, 3 c) operates the two axial flow pumps 72 (72 a, 72 b), thereby sucking up the sucked water from the discharge hole 73. Drop again towards the live fish tank 2 again. The pump tank 7 is provided with a heat exchanger 74 and keeps the water in the water tank 1 at a constant temperature.

  Therefore, in the present embodiment, by operating the two axial flow pumps 72 (72a, 72b) provided in the pump tank 7, the water stored in the water tank 1 is supplied to the pump tank 7, the live fish tank 2, The filter tank 5, the foam separation tank 6, and the filtration chamber 3 (and the pump tank 7) can be circulated in this order.

  And the water tank in this Embodiment provides the several filtration chamber 3 (3a, 3b, 3c) which has arrange | positioned the filter medium 4 (4a, 4b, 4c) in the bottom lower part of the live fish tank 2 as mentioned above. The area occupied by the live fish tank 2 with respect to the entire aquarium 1 is improved after ensuring an appropriate passing speed for the circulating filter medium 4 (4a, 4b, 4c).

  The water tank 1 of this Embodiment consists of the above structure. Next, according to the water tank 1 of the present embodiment, it will be described with reference to FIGS. 3 and 4 that an appropriate passing speed for the circulating water filter medium 4 can be secured.

  As described above, the passing speed of the circulating water with respect to the filter medium 4 is an appropriate speed according to the type of the filter medium 4 and the sparse density.

  The water circulating in the water tank 1 maintains a constant circulation amount (X (L / min)) by a pump. Here, as shown in FIG. 3A, when the filter medium 4 is thickly arranged in the direction of the circulating water, the time for the unit amount of water to pass through the filter medium 4 is Y seconds.

  On the other hand, as shown in FIG. 3 (b), when the thickness of the filter medium 4 is 1/3 compared to FIG. The time for the unit amount of water to pass through the filter medium 4 is also Y seconds.

  However, even in the case where the passage time is the same, in the case of FIG. 3B, the filter medium 4 having a thickness of 1/3 has passed through Y seconds, and the water passage speed through the filter medium 4 Is slower than in the case of FIG. That is, as shown in FIG. 3B, when the filter medium 4 is simply made thin and widely disposed, the water passing speed through the filter medium 4 becomes too slow and the filter medium 4 is likely to be blocked.

  On the other hand, as shown in FIG. 4, the filtration chamber 3 is divided into a plurality (3a, 3b, 3c), and the filter medium 4 (4a, 4b, 4c) is arranged in each filtration chamber 3 (3a, 3b, 3c). Each filtration chamber 3 so that the circulating water passes in either direction from the upper surface to the lower surface or the lower surface to the upper surface of the filter medium 4 (4a, 4b, 4c) in each filtration chamber 3 (3a, 3b, 3c). If (3a, 3b, 3c) are communicated, the passing speed of the circulating water with respect to the filter medium 4 can be controlled, and an appropriate passing speed of the circulating water with respect to the filter medium 4 can be secured.

DESCRIPTION OF SYMBOLS 1 Water tank 2 Live fish tank 3 Filtration room 4 Filter material 5 Filter tank 6 Foam separation tank 7 Pump tank 8 Installation stand

Claims (2)

A water tank equipped with a filtration system for purifying water by circulating water in the water tank and passing the circulating water through a filter medium,
The filtration system is provided with a plurality of filtration chambers into the bottom lower part of the active fish tank, a foam separation tank disposed on one end portion of the live fish tank, placing each said filter medium in each filtration chamber, filtration circulating water each When sequentially passing through the chambers, the water is communicated with each filtration chamber so that the water passes in the direction from the upper surface to the lower surface of the filter medium or from the lower surface to the upper surface of each filter chamber. The foam separation tank communicates with the first filtration chamber through a communication hole so that water is introduced from the foam separation tank to the upstream first filtration chamber. The communication hole is spaced upward from the bottom surface of the foam separation tank, and is provided between the upper surface of the filter medium of the first filtration chamber and the bottom wall of the live fish tank. Aquarium . In the water tank according to claim 1, aquarium water the circulating each time passing through each filter chamber, characterized by comprising communicating each filtration chamber so that the passage direction of the water to the filter medium is changed.

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