JPH04197405A - Filtering method, filtering apparatus and aquarium fish tank - Google Patents

Abstract

PURPOSE:To perform the efficient water purification by circulating an outgoing water to a pump through a first filtering tank part wherein the physical filtering is conducted and a second filtering tank part wherein the biological filtering is conducted and returning a part of outgoing water after it passes by a third filtering tank part containing active carbon. CONSTITUTION:A water fed by a pump 3 into a water tank is caused to circulate in a manner that the water is returned to the pump 3 after it passes by a first filtering tank part 17 wherein the physical filtering is conducted and/or a second filtering tank part 38 wherein the biological filtering is conducted. Furthermore, a part of water fed by the pump 3 is caused to return to the pump 3 through a third filtering tank part 18 containing an active carbon. Accordingly, the water can efficiently be filtered and purified without providing a high load to any of the filtering tank parts and the pump in use.

Description

DETAILED DESCRIPTION OF THE INVENTION <Field of Industrial Application> The present invention relates to a filtration method and a filtration device used for breeding freshwater fish and tropical fish mainly for ornamental purposes, and an aquarium for ornamental fish.

<Prior art> Ammonia and nitrogen-based organic substances contained in fish waste are present in the water of an aquarium for breeding fish.
This nitrogen-based organic matter is decomposed by bacteria to become ammonia nitrogen, nitrite nitrogen, and nitrate nitrogen.

Therefore, the aquarium fish tank described above requires a filtration device to purify the water in the tank.

Conventionally, the above-mentioned filtration devices include those that perform physical filtration using chemical fibers as a filtering material, and those that perform biological filtration by inhabiting gravel etc. with bacteria suitable for purification. It is being

(Problem to be solved by the invention) However, the above-mentioned filtration device cannot sufficiently purify the water in the aquarium, and only slightly reduces the frequency of replacing the water in the aquarium. It was something.

Therefore, there has been a demand for a filtration device that can make the water in an aquarium a water environment suitable for living organisms.

<Means for Solving the Problems> The present invention has been proposed in view of the above, and includes a first filter tank section that performs physical filtration and/or biological filtration of the water sent into the aquarium from the pump. In addition to circulating the water back to the pump via the second filtration tank, some of the water sent out from the pump is returned to the pump via the third filtration tank containing activated carbon. The present invention relates to a characteristic filtration method.

Furthermore, the present invention proposes a filtration device that specifically realizes the above-mentioned filtration method, and includes a first filtration tank section that performs physical filtration, and a biological By providing a second filtration tank section in series or parallel with a second filtration tank section that performs target filtration, the water sent out from the pump can be returned to the pump via the first filtration tank section and/or the second filtration tank section. In addition to circulating the water, by providing a discharge branch pipe branching from the discharge pipe of the pump, a part of the water sent out from the pump is returned to the pump via the third filtration tank section having activated carbon. We propose a filtration device with special features.

Furthermore, the present invention also proposes an aquarium for pre-viewing in which the above-mentioned filtration device is specifically installed, in which a first filtration tank part for performing physical filtration and a biological filtration part are provided inside the aquarium main body. A second filtration tank section, a third filtration tank section having activated carbon, and a pump are removably housed, and the first filtration tank section and the second filtration tank section are connected in series or with respect to the pump. By providing them in parallel, the water sent out from the pump is circulated so as to return to the pump via the first filtration tank section and/or the second filtration tank section, and a discharge branch pipe that branches from the discharge pipe of the pump. The present invention proposes an aquarium tank for ornamental fish, which is characterized in that a part of the water sent out from the pump is returned to the pump via the third filtration tank section.

<Function> As described above, the present invention has a first filtration tank part that performs physical filtration, a second filtration tank part that performs biological filtration, and adsorbs micro-suspended matter in water in a circulating waterway formed by a pump in the aquarium. By separately providing a third filter tank section containing activated carbon, macroscopic floating matter such as fish excrement and leftover food in the water is removed in the first filter tank section, and harmful ammonia and other substances in the fish excrement are removed. Ammonia generated from excrement is rendered harmless in the second filter tank, and the rendered organic matter and microscopic suspended matter are adsorbed by activated carbon in the third filter tank, so the inside of the aquarium is always clear. water will be circulated.

Furthermore, the three filtration tanks loaded in the aquarium are configured so that they can be easily attached to and removed from the aquarium along with the heater and pump, making it easy to replace the filter and inspect the pump and heater. can.

<Example> Embodiments of the present invention will be described below based on the drawings.

The aquarium fish tank 1 of the present invention includes a removable filter tank 5 equipped with a first filter material 2a, a third filter material 2C, a pump 3, and a heater 4 with a thermostat, and a second filter material 2b mounted on the upper surface. A bottom filter 6 is removably housed in an aquarium main body 7.

Aquarium body 7 constituting the aquarium fish tank 1 of the present invention described above
As shown in FIGS. 1 to 3, the front, part of the left and right sides, and the top are open, and the inside of the outer frame 8 is made of synthetic resin, etc., and is made of glass, transparent synthetic resin, etc. A transparent frame 9 having a U-shaped cross section is attached, and the open front and side surfaces are watertightly closed with silicone adhesive, and a lighting fixture 10 is attached to the open upper surface of the outer frame 8 to close the front upper surface. This is a structure in which a lid member 11 that can be opened and closed is provided in a removable or rotatable manner. The above-mentioned transparent frame 9 may be made of glass or transparent synthetic resin and integrally molded into a U-shape, but it may also be formed into a U-shape by bonding three transparent flat plates at the side edges, or Alternatively, a U-shaped adhesive with thin pillars interposed on the side edges may be used. Furthermore, transparent plates may be pasted on the front, right and left sides of the outer frame 8, and the upper and lower edges may be sealed watertight with adhesive.

Two raised protruding pieces 12 are formed on the bottom surface of the aquarium main body 7 to face each other along the lateral direction, and the stopper part 1
Set it to 3.

The removable filter tank 5 that is removably housed inside the aquarium body 7 described above has partition members 15 on both sides of the rear surface of the vertical plate member 14.
．． A horizontal partition 15a is provided below between both partitions 15.15, a heater chamber 16 is formed below the horizontal partition 15a, and a vertical partition 15b is provided above the horizontal partition 15a. , 15c on the left and right, the upper part of the horizontal partition 15a is divided into three parts, and a first filtration tank part 17, a third filtration tank part 18, and a pump chamber 19 are installed together, and each part (chamber) has at least a rear surface. release.

In the heater chamber 16 described above, fitting portions 21 into which the left and right rubber portions 20 and 20 of the heater 4 with a thermostat are fitted are fitted.
are formed on the left and right sides, and a number of thin slit-shaped first water holes 22a are bored at the lower side edge of the vertical plate 14 to communicate the outer surface of the vertical plate 14 with the heater chamber 16. and,
A second water passage hole 22b and a third water passage hole 22c similar to the first water passage hole 22a are formed in the horizontal partition material 15a, respectively, so that the heater chamber 16 and the first filtration tank part 17, and the heater chamber 16 and the third water passage hole 22c are formed. 3
The filtration tank section 18 is brought into communication. Further, a fitting hole 23 is formed in the horizontal partition member 15a so as to face the pump chamber 19, and the pump 3 installed in the pump chamber 19 is made to face the heater chamber 16 through the fitting hole 23. Further, the horizontal partition member 15a is provided with a notch 25 through which the power cord 24 of the thermostatic heater 4 is inserted.

A heater with a thermostat is removably attached to the heater chamber 16 using rubber parts 20 at both ends, and is designed to prevent the heat generating part 26 from coming into contact with the synthetic resin outer frame 8, partition material 15, etc. and causing thermal deformation. There is. In addition, the power cord 24 of the heater 4 with a thermostat is connected to the notch 25.
It is guided upward from the pump chamber 19 through the lead-out portion 27 provided at the upper end of the back surface of the outer frame body 8 constituting the water tank body 7 and connected to the current collector portion 28 provided on the back surface of the lid body 11. .

Further, a fourth water passage hole 22 is provided on one side of the vertical plate material 14 described above.
d is bored to communicate the outer surface of the vertical plate material 14 and the first filtration tank part 17, and a pump 3 is installed at the upper end of the vertical partition material 15c.
Notch portion 3 that guides the discharge branch pipe 29 to the third filtration tank portion 18
Set 0. Further, a support groove 32 is formed at the upper end of one side of the vertical plate 14 to guide the discharge pipe 31 of the pump 3 to the outer surface of the vertical plate 14.

The first filtration tank section 17 and the third filtration tank section 18 described above include
A first filtering material 2a made of chemical fiber and a third filtering material 2C including activated carbon are fully installed, and the pump chamber 19
A discharge pipe 31 extending upward is inserted into the support groove 32 and extends to the outer surface of the vertical plate 14, and a discharge branch pipe 29 branched from above the discharge pipe 31 is connected to the notch 30.
The third filtration tank section 18 is exposed through the . The power cord of the pump 3 may be connected from the lead-out portion 27 to the current collector 28, similarly to the power cord 24 of the thermostatic heater 4 described above, and the current collector 28 may be connected to a household power source.

Note that the lighting device 10 of the lid member 11 described above is also connected to the current collecting unit 28, and power is supplied to the lighting device 10, the pump 3, and the heater 4 with a thermostat.

As described above, when the removable filter tank 5 equipped with the first filter material 2a, the third filter material 2C, the thermostatic heater 4, and the pump 3 is stored in the water tank body 7, the lower end of the vertical plate material 14 is removed. It can be fitted to the stopper part 13 of the frame 8 so as not to shift in the front-rear direction. Furthermore, when each partition member 15, 15 of the removable filtration tank 5 is fitted into the support portion 33 having the same structure as the stopper portion 13 formed on the side and rear inner walls of the outer frame 8,
There is no movement in the lateral direction.

Similar to the above-mentioned removable filter tank 5, the above-mentioned water tank body 7
The bottom filter 6, which is removably housed inside the filter tank, has a plurality of leg pieces 36 on the lower surface of a horizontal plate 35 having a plurality of slit-like small holes 34, and a vertical part of the removable filtration tank 5 on the rear edge. The receiving piece 37 is formed in an upright shape so as to be in contact with the plate material 14.

On the top surface of the bottom filter 6 mentioned above, for breeding fish,
Or larger than the small hole 34 to improve the visual effect,
The second chamber consists of gravel and glass bulbs that inhabit bacteria that decompose ammonia and nitrogen-based organic matter contained in excrement.
The filter material 2b is placed thereon to form a second filter tank section 38. In this case, if the second filter material 2b is placed lower than the upper end of the receiving piece 37, even when the removable filter tank 5 is attached to or removed from the aquarium main body 7, the second filter material 2b on the upper surface etc. It will not fall to the bottom.

The ornamental fish aquarium 1 of the present invention has the above-described configuration, and when used, the pump 3 is installed in the pump chamber 19 and the discharge pipe 31 is
is extended from the support groove 32 to the outer surface of the vertical plate material 14, and the first filter material 2a is placed in the first filter tank section 17 and the third filter material is placed in the third filter tank section 18.
A removable filter tank 5 filled with filter material 2C and with a heater 4 fitted into the heater chamber 16 is housed inside the aquarium main body 7 on the rear side, and a bottom filter 6 is fitted into the internal bottom of the aquarium main body 7 and placed on the top surface. The second filtration tank section 38 with the second filtration material 2b placed thereon
form. Then, when the thermostatic heater 4 and pump 3 are activated with water in the aquarium body 7, the water heated in the heater chamber 16 of the detachable filtration tank 5 flows out from the discharge pipe 31 of the pump 3 into the aquarium. Alternatively, water flows out from the discharge branch pipe 29 of the pump 3 into the third filtration tank section 18.Also, since the water in the heater chamber 16 is sucked by the operation of the pump 3, the heater chamber 16 is reduced in pressure. However, the water in the tank main body flows through the first water hole 22a, and the water flows into the second water hole 22.
Water in the first filter tank section 17 flows from b, and further flows into the third filter tank section 17.
Water in the third filter tank section 18 flows through the water passage hole 22c.

Therefore, the water in the aquarium body flows through the process of flowing into the heater chamber 16 from the first water passage hole 22a, the process of flowing into the heater chamber 16 from the fourth water passage hole 22d through the first filter tank section 17, and There is a process in which water flows from the third filtration tank section 18 into the heater chamber 16 through the third water passage hole 22c, and the water in the heater chamber 16 is discharged from the discharge pipe 31 by the pump 3 to the water tank main body 7.
A part of the water is supplied to the inside of the tank and becomes a circulating flow, or a part of it is supplied to the third filtration tank section 18 through the discharge branch pipe 29 and becomes a circulating flow.

In the above-mentioned circulation flow, the water flowing into the heater chamber 16 from the first water passage hole 22a is filtered by the second filter tank member 38 on the bottom filter 6, so that it is not contaminated and the water flows into the heater chamber 16 from the first water passage hole 22a. Since the water passing through the dan part 18 is refiltered without returning to the tank body, the filtration effect can be sufficiently enhanced.

To explain the above-mentioned water flow in more detail, the water tank body 7
The water where ornamental fish are swimming is from the 4th water hole 22.
A process in which water flows into the first filter tank part 17 from d, removes macroscopic organic matter such as fish excrement and leftover food in the first filter medium 2a, and then flows down into the heater chamber 16 from the second water passage hole 22b (
After removing macroscopic organic matter contained in the water via the first step) and the second filter tank member 38 (second filter material 2b) on the bottom filter 6, harmful ammonia is decomposed and rendered harmless. There is a process (second process) in which water flows down from the small hole 34 to the lower part of the bottom filter 6 and flows into the heater chamber 16 from the first water passage hole 22a, and in each process, as described above, the first filter material 2a, the 2 filtering material 2b, the clean water that has undergone physical filtration and biological filtration flows into the heater chamber 16.

On the other hand, the water discharged from the discharge branch pipe 29 of the pump 3 is
Through the process (third process) of passing through the third filter medium 2C of the third filter tank section 18, adsorbing microscopic nitrogen-based organic substances and decomposition products with activated carbon, and then flowing down from the third water passage hole 22c to the heater chamber 16. , the purified water will flow into the heater chamber 16.

The water that has flowed into the heater chamber 16 through the first, second, and third processes described above is sent to the pump 3 in the pump chamber 19, and is sent from the discharge pipe 31 of the pump 3 into the water tank main body 7. A main circulation waterway that returns to the pump 3 through the first or second process is formed, and the discharge branch pipe 29 of the pump
A sub-circulation waterway is formed in which the water is sent from the water to the third filtration tank section 18, and then returns to the pump 3 through the third process. In addition, the pump 3 normally pumps about 20 to 30% of the total water flow.
Water is supplied from the discharge branch pipe 24.

In this way, the illustrated aquarium fish tank 1 has the first filter material 2
a. After physical filtration and biological filtration are performed through the main circulation waterway passing through the second filtering material 2b, some of the water is filtered through the sub-circulation waterway passing through the third filtering material 2C to further remove microscopic nitrogen-based organic matter. and decomposition products can be adsorbed with activated carbon.

In addition, the aquarium fish tank of the present invention can reduce the load on each filter tank and use less pumps than a single circulation waterway in which each filter medium is installed in series. You can use the output.

Furthermore, in the present invention, the first filter material and the second filter material may be installed in parallel as in the illustrated embodiment, or may be arranged in series.

In addition, each filter medium in the present invention is such that the first filter medium can perform at least physical filtration, the second filter medium can perform at least biological filtration, and the third filter medium contains at least activated carbon. For example, the third filter material may be an integral filter material as shown in FIG. 7, or a filter material made of activated carbon fixed to chemical fibers as shown in FIG. It may be a combination of 2 cmA of filtration material and 2 cmB of filtration material made of chemical fiber.

In addition, the aquarium fish tank of the present invention may be configured as in the embodiments shown in FIGS. 1 to 7 described above, but it may also be configured with various practical configurations added. For example, the 8th
As shown in the figure and FIG. 9, the receiving piece 37'' of the bottom filter 6° may be raised upwards.With this configuration, the removable filtration tank 5 and the bottom filter 6°
When taking out the water from the tank main body 7, the second filter material 2b placed on the top surface of the bottom filter 6° does not get into the small gap between the removable filtration tank 5 and the bottom filter 6°, making it easy to clean. Work can be done extremely easily. A fifth water passage hole 22e is bored in the stopper piece 37' of the bottom filter 6'' at a position facing the fourth water passage hole 22d of the removable filtration tank 5, as shown in FIG. to 7th
A circulation waterway similar to the embodiment shown in the figure is formed.

Therefore, in any of the embodiments described above, the aquarium fish tank of the present invention can physically filter and remove dust, residual food, excrement, etc. contained in the aquarium through the first filter tank section. The ammonia and nitrogenous organic matter contained in the excrement can be decomposed and rendered harmless by the decomposing bacteria in the second filter tank, and the activated carbon in the third filter tank can contain the nitrogenous organic matter and its It can adsorb decomposed products and circulate clean water into the aquarium.

In addition, as shown in FIGS. 8 and 9, the bottom filter 6
If a low-height protective wall 61 is provided on the two side edges where the receiving piece 37° is not formed on the horizontal plate 35° of ゛, it will be easier to install and remove the bottom filter 6° from the aquarium in order to clean each filter medium. The second filter material 2b placed on the horizontal plate at an angle of 35 degrees hardly spills out.

Although the present invention has been described above based on the embodiments shown in the drawings, the present invention is not limited to the above-described embodiments (and may be implemented in any manner as long as the structure described in the claims is not changed). I can do it.

(Effect of the invention) As explained above, according to the filtration method of the present invention, the first
Physical filtration and biological filtration can be performed by the filtration tank section and the second filtration tank section, and the circulating water can be kept clean by the adsorption function of activated carbon in the third filtration tank section.

Further, in the filtration method of the present invention, the water sent out from the pump is circulated via the first filtration tank section and the second filtration tank section, and a part of the water sent out from the pump is divided into a third filtration section. Since the water is refluxed via the tank, efficient filtration and cleaning can be achieved without placing a high load on each filtration tank or the pump used.

Furthermore, the filtration device of the present invention implements the above-described filtration method, and can filter and purify water extremely efficiently with a simple configuration.

In addition, the aquarium fish tank of the present invention can physically filter and remove dust, residue, excrement, etc. contained in the aquarium through the first filter tank, and remove ammonia contained in the excrement. The decomposing bacteria in the second filtration tank can decompose nitrogenous organic matter and nitrogen-based organic matter, and the activated carbon in the third filtration tank can adsorb the nitrogenous organic matter and its decomposed products. water can be circulated within the aquarium.

In addition, in the aquarium fish tank of the present invention, each filter tank section, heater, and pump are removably housed, so they can be taken out as appropriate for inspection, replacement, cleaning, etc. The water in the tank can be easily replaced and cleaned, and clean water can be permanently circulated.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is a perspective view of the aquarium fish tank of the present invention as seen diagonally from the rear, FIG. 2 is an exploded perspective view thereof, and FIG. 3 is a cross-sectional plan view thereof. , Figure 4 is the third
Figure 5 is a vertical cross-sectional view taken along line v-v in Figure 3, Figure 6 is a vertical cross-sectional view of the removable filtration tank in a raised state, and Figure 7 is a removable filtration tank. A perspective view of a filter tank, a first filter medium, a second filter medium, and a heater with a thermostat, FIG. 8 is a perspective view of a bottom filter and a removable filter tank of another embodiment, and FIG. A partially cutaway side view of an aquarium fish tank equipped with a bottom filter and a removable filtration tank, and FIG. 10 is a perspective view of the second filtration material, first filtration material, and removable filtration tank of another embodiment. 11 is a longitudinal sectional view of a removable filter tank equipped with the second filter material and first filter material shown in FIG. 10. In the figure, 1 is an aquarium tank, 3 is a pump, 17 is a first filter tank section, 18 is a third filter tank section, and 38 is a second filter tank section. Figure 1 Figure 5

Claims (3)

[Claims] (1) The water sent into the aquarium from the pump is circulated so as to return to the pump via the first filtration tank section that performs physical filtration and/or the second filtration tank section that performs biological filtration. A filtration method characterized in that a part of the water sent out from the pump is returned to the pump via a third filtration tank section having activated carbon. (2) By providing in series or parallel a first filtration tank section that performs physical filtration and a second filtration tank section that performs biological filtration in the circulation waterway in the aquarium formed by the pump, The water is circulated so as to return to the pump via the first filtration tank section and/or the second filtration tank section, and by providing a discharge branch pipe branching from the discharge pipe of the pump, the water is sent out from the pump. A filtration device characterized in that a part of the water is returned to the pump via a third filtration tank section having activated carbon. (3) A first filtration section that performs physical filtration, a second filtration tank section that performs biological filtration, a third filtration tank section that has activated carbon, and a pump can be installed and removed inside the aquarium main body. By providing the first filtration tank section and the second filtration tank section in series or in parallel with respect to the pump, the water sent out from the pump can be transferred to the first filtration tank section and/or the second filtration tank section. By providing a discharge branch pipe that branches from the discharge pipe of the pump, some of the water sent out from the pump is circulated back to the pump via the third filtration tank part. An aquarium fish tank characterized by having a reflux flow.