JP3171591B2 - Aquarium equipment - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to various aquarium devices, such as aquaculture and appreciation aquariums, pools or baths, for fish and shellfish, and more particularly to an improvement in the structure of a drainage portion of the aquarium. .

[Prior Art] In general, in various types of aquarium devices such as aquaculture and ornamental aquariums, pools and baths, when draining water from a water tank, a method of draining water from a drain hole provided at the bottom of the tank is adopted. ing.

[Problem to be Solved by the Invention] In the above-mentioned conventional water tank apparatus, since water in the water tank is simply discharged from a drain port provided at the bottom of the tank,
There is a problem that the accumulated matter on the tank bottom and suspended matter on the water surface cannot be discharged only by drainage operation, but must be discharged and removed by a different method from drainage, and the work is not easy. .

In particular, in aquaculture equipment such as a flat-grained aquarium that adopts a circulating purification method in which the wastewater is purified and then returned to the water tank again, it is possible to quickly discharge the suspended matter on the tank bottom and suspended matter on the water surface with a small amount of circulating water. This is extremely important because it is the only way to keep the inside of the aquarium clean at all times.

The present invention has been made in view of such a situation, and an object of the present invention is to provide a water tank apparatus capable of automatically discharging a stagnant substance on a tank bottom and a floating substance on a water surface by a drainage operation.

[Means for Solving the Problems] The present invention provides, as means for achieving the above object, a water tank having a tank bottom inclined downward toward a drain point; a tank installed at the drain point and located near the tank bottom. A water discharge mechanism having a bottom discharge part for discharging the residue on the bottom and having a water surface discharge part for discharging suspended matter on the water surface near the water surface; and a water supply mechanism for supplying water to the water tank. As the drainage mechanism, one having an adjusting means for adjusting the position of the water surface discharge part according to the water level in the water tank is used, and water from the water supply mechanism is discharged in one direction along the inner peripheral surface of the water tank. In addition, a floating substance guide material for guiding the floating substance on the water surface to the water surface discharge portion is arranged on the water surface of the water tank.

In the present invention, the drainage mechanism is formed by a pipe material erected at a drainage point, and the bottom discharge part and the water surface discharge part are formed by openings provided on a peripheral surface of the pipe material, and It is preferable that the adjusting means is formed of an adjusting cylinder slidable along the outer peripheral surface of the pipe member.

Further, it is preferable that the adjusting cylinder is configured to be slidable along the outer peripheral surface of the pipe material by the buoyancy of the submerged portion.

Further, the water tank is preferably formed in a cylindrical shape having a drain point at the center.

[Operation] In the water tank device according to the present invention, water in the water tank is discharged from the drainage mechanism, and water is supplied to the water tank from the water supply mechanism. Then, due to the drainage and the water supply, a water flow toward the drainage mechanism is generated in the water tank.

By the way, since the bottom of the water tank is inclined downward toward the drainage point, the residue on the bottom of the water tank is guided to the drainage point by the water flow, and is quickly discharged from the bottom drainage part. In addition, suspended matter on the water surface is also guided to the drainage point by the water flow, and is quickly discharged from the water surface discharge part.

In addition, a floating substance guide material for discharging water from the water supply mechanism in one direction along the inner peripheral surface of the water tank and for guiding floating substances on the water surface to the water surface discharge portion on the water surface of the water tank is arranged. As a result, the water flow toward the drainage mechanism can be obtained more reliably, and even a large water tank can reliably discharge foreign matter. In addition, when the present invention is applied to an aquarium for fish and shellfish, the bait put in at one place is dispersed in the aquarium by the above-mentioned water flow, and the feeding operation can be labor-saving.

In the present invention, the drainage mechanism is formed by a pipe material erected at the drainage point, and the bottom discharge part and the water surface discharge part are formed by openings provided on the peripheral surface of the pipe material, and adjusted. The structure can be simplified by forming the means with an adjusting cylinder slidable along the outer peripheral surface of the pipe material.

In addition, by making the adjusting cylinder slidable along the outer peripheral surface of the pipe material by the buoyancy of the submerged part, the position of the water surface discharge part can be automatically adjusted according to the fluctuation of the water level in the water tank. Becomes possible.

Furthermore, by forming the water tank in a cylindrical shape having a drain point at the center, a water flow toward the drain mechanism is easily generated, and foreign matter discharge can be promoted.

Embodiment Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.

FIG. 4 shows a case where the water circulation purifying device is configured by applying the water tank device according to the present invention to a flat-cultured aquarium, and the water circulation purifying device accommodates water held at about 20 ° C. Aquaculture tank 1, purifying means 2 for circulating and purifying a part of water discharged from this aquaculture tank 1, and purifying, temperature controlling and ozone treatment by circulating the remainder of the water discharged from said aquaculture tank 1. The purifying means 2 is set to be larger so that the circulating water volume of the two means 2 and 3 is, for example, about 5: 3.

As shown in FIGS. 1 and 2, the culture tank 1 is formed in a cylindrical shape with a tank bottom 1a inclined in a funnel shape toward the center. A drainage mechanism 4 for discharging water (in the case of flat fish, seawater) out of the tank is provided upright.

As shown in FIGS. 1 to 3, the drainage mechanism 4 has a cylindrical shape with an upper end closed, and the lower end of the tank bottom is closed.
A portion corresponding to 1a is provided with a bottom discharge port 4a for discharging sediment deposited and accumulated on the tank bottom 1a,
At a position near the water surface of the drainage mechanism 4, a water surface discharge port 4 b for discharging suspended matters such as oils and fats floating on the water surface is provided, and the water surface discharge port 4 b is vertically located on an outer peripheral portion of the discharge mechanism 4. It is opened and closed by an adjusting cylinder 5 mounted so as to be adjustable, and when the water surface position is changed, the position of the water surface drain port 4b can be substantially adjusted in accordance with the change.

Further, the clean water treated by the purifying means 2 and the treating means 3 is returned to the aquaculture tank 1 via the return pipe 6 as shown in FIGS. 1, 2 and 4. The return pipe 6 is provided on the inner peripheral surface of the aquaculture tank 1.
Purified water is discharged in one direction along 1b. As a result, a clockwise water flow is formed in the aquaculture tank 1 as shown by the arrow in FIG.

As shown in FIG. 1 and FIG. 2, a curved floating substance guide member 7 is disposed on the water surface of the aquaculture tank 1 from the inner peripheral surface 1b toward the drainage mechanism 4, and the surface of the culture water is supplied by the water flow. Is guided to the water surface discharge port 4b by the suspended matter guide member 7, and is quickly discharged. This will be described in detail later.

As shown in FIG. 4, the purifying means 2 includes a filter 8 into which a filter medium has been charged. The filter 8 includes a first branch pipe 9 of the wastewater from the aquaculture tank 1. The drainage that has flowed in is the on-off valve 10, a pair of strainers 1 used for switching.
1, Filtration pump 12 also serving as backwash pump and manual 5-way valve 13
And the purified water purified by the filter 8 is sent to the mixer 15 via the feed pipe 14. Then, in the mixer 15, after being mixed with treated water from the processing means 3 described later, the mixed water is returned to the aquaculture tank 1 via the return pipe 6.

Between the on-off valve 10 and the pair of strainers 11, a fourth
As shown in the figure, a backwash tank 17 is connected via a normally closed valve 16 that opens during backwash, and the backwash water in the backwash tank 17 is filtered by the start of the filtration pump 12. 8 and a reverse flow of the filter 8 is performed.

On the other hand, as shown in FIG. 4, the processing means 3 includes a filter 18, an adjustment tank 19, a temperature adjustment tank 20, and an ozone reaction tower 21. Branch pipe 22
The wastewater that has flowed into the is subjected to purification, temperature control, and ozone treatment by the treatment means 3.

That is, the filter 18 has the same configuration as the filter 8 of the purifying means 2, and the drainage flowing into the second branch pipe 22 is supplied to the pair of strainers 23 used for switching. , Filtration pump 24, electric three-way valve 25 and automatic one-way valve 26
And the purified water purified by the filter 18 is sent to the adjusting tank 19 via the feed pipe 27.

As shown in FIG. 4, the adjusting tank 19 has a lower opening partition plate.
19a and an upper opening partition plate 19b, and the clean water supplied from the feed pipe 27 to the adjusting tank 19 is provided with the two partition plates 19a and 19b.
The water is sent to the temperature control tank 20 through b. Then, while passing through the two partition plates 19a and 19b, the foreign matter in the clean water is separated from the specific gravity and removed from the clean water.

As shown in FIG. 4, a heater 28 is provided in the temperature control tank 20, and hot water from a boiler 29 is supplied to the heater 28 via a circulating heating pump 30 to control the temperature. The clean water in the tank 20 is heated to a set temperature.
In the temperature control tank 20, when the water level in the temperature control tank 20 decreases, the seawater from the seawater line is supplied via a supply water electric valve 31. 29 is designed so that tap water is supplied via the cistern 32 when the water level drops.

When it is necessary to cool the clean water in the temperature control tank 20, a cooler (not shown) is used instead of the boiler 29, and the cooling water cooled by this cooler is supplied to the heater 28. Sent.

As shown in FIG. 4, a circulation pump 33, a makeup water pump 34, and a backflow pump 35 are provided on the outlet side of the temperature control tank 20, and the temperature control water discharged from the circulation pump 33 is ozone-free. The ozone is sent to the ozone reaction tower 21 together with the ozone from the ozone generator 38 sent via the supply electromagnetic valve 36 and the ozone supply pump 37, and is subjected to ozone treatment. Then, the treated water after the ozone treatment is sent to the mixer 15 via a feed pipe 39 as shown in FIG.

The temperature-controlled water discharged from the makeup water pump 34 is:
As shown in FIG. 4, the mixer is connected via a makeup water pipe 40.
15 and the backwash pump
The temperature-controlled water discharged from 35 is sent to the electric three-way valve 25 via a backwash pipe 41, and is used when the filter 18 is backwashed.

In addition, a part of the temperature-controlled water sent out from the temperature-controlled tank 20 includes:
As shown in FIG. 4, the temperature-controlled water is supplied to the inlet side of the on-off valve 10 through a temperature control pipe 43 having a normally closed valve 42. The temperature of the inside of the filter 8 is adjusted by being sent to the inside.

The ozone reaction tower 21 has, for example, the same structure as that disclosed in FIGS. 7 and 8 of Japanese Utility Model Application Laid-Open No. 1-152796, and is provided together with ozone at the lower end of the ozone reaction tower 21. The hot water rises while spirally rotating in the ozone reaction tower 21, and during this time, it comes into sufficient contact with ozone to be completely treated in a short time. Then, the exhausted ozone separated by the gas-liquid separator 44 at the upper end of the ozone reaction tower 21 is supplied to an aerator 45 provided in the middle of the feed pipe 27 through an ozone pipe 46 as shown in FIG. It is sent to the adjusting tank 19 and reused.

On the other hand, the mixer 15 is composed of, for example, a static mixer. After the water from the pipes 6, 39, and 40 is mixed by the mixer 22, the water is supplied to the culture tank 1 via the return pipe 6.
To form a closed loop.

In the middle of the return pipe 6, as shown in FIG. 4, an aerator 47 is provided.
The atmosphere suction switching valve 48 and the air pump 49 are connected to each other so that the dissolved oxygen is enriched, and a magnetizer 50 is provided on the outlet side of the air pump 49,
The air from the air pump 49 is activated by a magnet.

 In FIG. 4, reference numeral 51 denotes a drain pit.

 Next, the operation of the present embodiment will be described.

The water in the cultivation aquarium 1 for cultivating fish is drainage mechanism 4
Through the first branch pipe 9.
And the second branch pipe 22 at a ratio of, for example, 5: 3.

The drainage flowing into the first branch pipe 9 is supplied to the on-off valve 10, one of the strainers 11, the filtration pump 12, and the manual five-way valve 1.
The filter 3 is sequentially sent to the filter 8 via the filter 3, where it is purified. Then, the purified water after purification is sent to the mixer 15 via the feed pipe 14.

On the other hand, the drainage flowing into the second branch pipe 9 is sent to the filter 18 via one of the strainer 23, the filtration pump 24, the electric three-way valve 25, and the automatic five-way valve 26 in order, and this filter 18
Purified in Then, the purified water after purification is sent to the adjusting tank 19 via the feed pipe 27, and foreign substances in the purified water are separated by specific gravity. Thereby, cleaner water can be obtained.

This water is then sent to a temperature control tank 20, where it is usually heated and maintained at a set temperature of around 20 ° C. in the case of aquaculture. Then, the temperature-controlled water is sent to the ozone reaction tower 21, where sterilization, deodorization, enrichment of dissolved oxygen, and decomposition of harmful substances such as ammonia and nitrogen oxides are performed.

At this time, the ozone discharged from the ozone reaction tower 21 is sent to the aerator 45 via the ozone pipe 46, added to the clean water flowing through the supply pipe 27 together with the air, and reused in the adjustment tank 19. For this reason, there is no problem associated with the release of exhausted ozone to the atmosphere, and the purification process in the adjustment tank 19 can be further promoted.

In this way, the treated water treated in the ozone reaction tower 21 is sent to the mixer 15 via the feed pipe 39, and mixed with the clean water sent to the mixer 15 via the feed pipe 14. It is returned to the aquaculture tank 1 by the return pipe 6. When the water level in the aquaculture tank 1 is lowered, the makeup water discharged from the makeup water pump 34 is sent to the mixer 15 through the makeup water pipe 40 and mixed with the treated water and the clean water. Returned piping 6
To return to the culture tank 1. By the mixing by the mixer 15, the temperature difference between the waters is averaged, and the variation in the temperature distribution in the culture water tank 1 is suppressed as compared with the case where these are individually returned to the culture water tank 1, and more stable. Water temperature control becomes possible.

The water from the mixer 15 is supplied to the culture tank 1 via the return pipe 6.
When the air is returned, the air is added by the aerator 47 in the middle of the return pipe 6, and the air from the air pump 49 is activated by the magnetizer 50. For this reason, while enrichment of dissolved oxygen is promoted, the decomposition efficiency of harmful substances such as ammonia and a nitric acid compound is improved, and the inside of the culture tank 1 can be cleaned.

Meanwhile, the water returned from the return pipe 6 into the culture water tank 1 is discharged in one direction along the inner peripheral surface 1b of the culture water tank 1 as shown in FIGS.
The water inside is sucked by the drainage mechanism 4 in the center of the culture tank 1 by the suction force of the filtration pumps 12 and 24. Therefore, a swirl toward the center is generated in the aquaculture tank 1 as shown by an arrow in FIG.

When a vortex is generated in the aquaculture tank 1, the stagnation that has accumulated on the tank bottom 1 a is quickly and reliably discharged from the bottom discharge port 4 a along the inclined surface of the tank bottom 1 a, and the suspended matter on the water surface Is
In combination with the guide by the floating matter guide member 7, the water is quickly and completely discharged from the water surface discharge port 4b. Therefore, water pollution due to these putrefactions can be prevented, and as a result, the amount of water treated by the purification means 2 and the treatment means 3 can be reduced, and the apparatus configuration can be downsized.

FIG. 5 shows a second embodiment of the present invention, in which a drainage mechanism 104 is used in place of the drainage mechanism 4 in the first embodiment.

That is, as shown in FIG. 5, the drainage mechanism 104 has a cylindrical shape whose upper end is closed, and the lower end of the drainage mechanism 104 corresponding to the tank bottom 1a has sediment deposited and accumulated on the tank bottom 1a. A drain outlet 104a is provided at a position near the water surface of the drainage mechanism 104 for discharging oil and fats floating on the water surface. An adjusting means 105 for automatically adjusting the position of the water surface discharge port 104b according to the water level fluctuation is provided on the outer peripheral portion of the water surface discharge port 104b.

As shown in FIG. 5, the adjusting means 105
An adjusting cylinder 105a slidable along the outer surface of 04, and three floating bodies 105b attached to the outer surface of the adjusting cylinder 105a at equal intervals in the circumferential direction via an arm 106 are provided. , The drainage mechanism by the buoyancy acting on each floating body 105b
Slide along 104, water level outlet 1 according to water level fluctuation
The position of 04b can be automatically adjusted.

In other respects, the configuration is the same as that of the first embodiment, and the operation is the same.

Thus, by using the adjusting means 105, even if the water level of the aquaculture tank 1 fluctuates, the position of the water surface discharge port 104b can be substantially automatically adjusted, and the operation is easy.

FIG. 6 shows a third embodiment of the present invention, in which a drainage mechanism 204 is used in place of the drainage mechanism 4 in the first embodiment.

That is, as shown in FIG. 6, the drainage mechanism 204 includes a bottom drainage member 205 having a bottom outlet 204a on the outer peripheral surface.
And a water surface drainage member 206 having a water surface discharge port 204b on the outer peripheral surface.
The drainage members 205 and 206 are connected via a flexible tube 207, and are connected by, for example, two chains 208 shorter than the flexible tube 207. Then, due to the buoyancy acting on the submerged member, the water surface drainage rain material 206 floats in a state where the chain 208 is stretched without slack, whereby the position of the water surface discharge port 204b is automatically adjusted according to the water level fluctuation. It is to be adjusted.

In other respects, the configuration is the same as that of the first embodiment, and the operation is the same.

Thus, by using the drainage mechanism 204, the position of the water surface discharge port 204b is automatically adjusted according to the water level fluctuation, similarly to the second embodiment, and the adjustment work becomes unnecessary.

However, in the case of this drainage mechanism 204, since the water surface drainage member 206 is shifted from the center of the aquaculture tank 1 according to the water level fluctuation, the water surface drainage member 20 is formed using a chain or the like having a predetermined length.
6 is preferably connected to the suspended matter guide 7 (see FIG. 2) so as to regulate the direction of displacement of the water surface drainage member 206.

In each of the above embodiments, each of the drainage mechanisms 4, 104, 20
4 has been described in the center of the aquaculture tank 1, but if the tank bottom 1a is inclined downward toward the respective drainage mechanisms 4, 104, 204, the respective drainage mechanisms 4, 104, 204
Need not necessarily be provided at the center of the aquaculture tank 1.
Further, the culture tank 1 is not limited to a cylindrical one, and can be applied to other shapes such as a polygonal shape.

In each of the above embodiments, the case where the circulating water is returned to the culture tank 1 via one return pipe 6 has been described, but a plurality of return pipes 6 are arranged at equal intervals in the circumferential direction of the culture tank 1. You may make it. Thereby, a stable vortex can be generated more reliably in the culture tank 1.

Further, in each of the above-described embodiments, the aquarium apparatus applied to the cultivation of flatfish has been described. Can be applied to the aquarium device. Further, the present invention is not limited to the fish and shellfish tank device, and can be similarly applied to a tank device such as a heated pool or a bath.

Further, in each of the above-described embodiments, the so-called circulation purifying type water tank apparatus in which the water discharged from the water tank is purified and returned to the water tank is described. The present invention can be similarly applied to a so-called hanging type water tank that supplies new water to the water tank. And
In this case, the effect that the inside of the water tank can always be kept clean even if the amount of drainage and water supply is reduced is obtained.

[Effects of the Invention] As described above, the present invention provides a drainage mechanism having a tank bottom of a water tank inclined downwardly toward a drainage point and having a bottom drainage port and a water surface drainage port at this drainage point. Since the water is supplied from the water supply mechanism and the water is drained from the drainage mechanism, a water flow is generated in the water tank toward the drainage mechanism. Suspended matter can be quickly and automatically discharged.
Therefore, the work is easy and the inside of the water tank can be always kept clean with a small amount of drainage. And since the drainage mechanism has the adjusting means for adjusting the position of the water surface discharge part in accordance with the water level in the water tank, it is possible to sufficiently cope with water level fluctuation.

In addition, a floating substance guide material for discharging water from the water supply mechanism in one direction along the inner peripheral surface of the water tank and for guiding floating substances on the water surface to the water surface discharge portion on the water surface of the water tank is arranged. As a result, the water flow toward the drainage mechanism can be more reliably obtained, and foreign substances can be reliably discharged even in a large water tank. In addition, when the present invention is applied to an aquarium for fish and shellfish, the bait put in at one place is dispersed in the aquarium by the water stream, and labor for feeding can be saved.

Further, in the present invention, the drainage mechanism is formed by a pipe material erected at a drainage point, and the bottom discharge portion and the water surface discharge portion are formed by openings provided on a peripheral surface of the pipe material, and are adjusted. By forming the means with an adjusting cylinder slidable along the outer surface of the pipe member, the structure of the drainage mechanism is simplified, maintenance is easy, and there are few failures.

In addition, by making the adjusting cylinder slidable along the outer surface of the pipe material by the buoyancy of the submerged part, the position of the water surface discharge part can be automatically adjusted according to the fluctuation of the water level in the water tank. It is possible and work is easy.

Furthermore, by forming the water tank in a cylindrical shape having a drain point at the center, a water flow toward the drain mechanism is easily generated, and foreign matter discharge can be promoted.

[Brief description of the drawings]

1 is a sectional view showing a water tank apparatus according to a first embodiment of the present invention, FIG. 2 is a sectional view taken along the line II-II of FIG. 1, FIG. 3 is a detailed view of a drainage mechanism, and FIG. FIG. 5 is a system diagram showing a case where a water circulation purifying apparatus is configured by applying the aquarium apparatus to an aquarium culture tank, FIG. 5 is a diagram corresponding to FIG. 3 showing a second embodiment of the present invention,
FIG. 6 is a diagram corresponding to FIG. 3 showing a third embodiment of the present invention. 1: Aquaculture tank 1a: Tank bottom 1b: Inner peripheral surface 2: Purification means 3: Treatment means 4, 104, 204: Drainage mechanism 4a, 104a, 204a: Bottom discharge port 4b, 104b, 204b: Water discharge port 5, 105a: Adjustable cylinder 6: Return pipe 7: Floating material guide member 105: Adjusting means 105b: Floating body 106: Arm 205: Bottom drainage member 206: Water surface drainage member 207: Flexible tube

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Noritada Yoshino 3-9-1, Mita, Minato-ku, Tokyo Yusen Nabutec Co., Ltd. (72) Inventor Koichi Nakagami 1-chome Moriyacho, Kanagawa-ku, Yokohama-shi, Kanagawa No. 2 Keihin Dock Co., Ltd. (72) Inventor Hiroharu Takami 1-3-1, Nishi-Shimbashi, Minato-ku, Tokyo Inside the Kie Terminal Co., Ltd. (56) References JP-A 1-236987 (JP, A) (Japanese) Shokai Sho 57-109766 (JP, U) Shokai Sho 53-121510 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) B65D 88/00-90/66 A01K 63 / 00 E03C 1/24-1/244 E04H 3/18-3/20

Claims (4)

(57) [Claims] 1. A water tank having a tank bottom inclined downwardly toward a drain point; a water tank installed at the drain point, and having a bottom discharge part at a position near the tank bottom for discharging a residue on the tank bottom; A water discharge mechanism having a water surface discharge part for discharging suspended matter on the water surface at a nearby position; and a water supply mechanism for supplying water to the water tank, wherein the water discharge mechanism is provided with a water surface discharge part according to a water level in the water tank. In addition to having an adjusting means for adjusting the position, the water from the water supply mechanism is discharged in one direction along the inner peripheral surface of the water tank, and on the water surface of the water tank, floating substances on the water surface are removed. An aquarium device, wherein a floating material guide material for guiding to a discharge portion is provided. 2. The drainage mechanism is formed by a pipe material erected at a drainage point, and the bottom discharge portion and the water surface discharge portion are formed by openings provided on a peripheral surface of the pipe material, and are adjusted. 2. A water tank apparatus according to claim 1, wherein said means is formed of an adjusting cylinder slidable along an outer peripheral surface of said pipe member. 3. The water tank device according to claim 2, wherein the adjusting cylinder is slidable along the outer peripheral surface of the pipe material by the buoyancy of the submerged portion. 4. The aquarium apparatus according to claim 1, wherein the aquarium has a cylindrical shape having a drain point at the center.