KR101562967B1 - Water tank for sea fish of cleaning aquarium system - Google Patents

Water tank for sea fish of cleaning aquarium system Download PDF

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Publication number
KR101562967B1
KR101562967B1 KR1020150057961A KR20150057961A KR101562967B1 KR 101562967 B1 KR101562967 B1 KR 101562967B1 KR 1020150057961 A KR1020150057961 A KR 1020150057961A KR 20150057961 A KR20150057961 A KR 20150057961A KR 101562967 B1 KR101562967 B1 KR 101562967B1
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South Korea
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seawater
tank
salt
water
amount
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KR1020150057961A
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Korean (ko)
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이병섭
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이병섭
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01KANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K61/00Culture of aquatic animals
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01KANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K63/00Receptacles for live fish, e.g. aquaria; Terraria
    • A01K63/04Arrangements for treating water specially adapted to receptacles for live fish
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/80Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
    • Y02A40/81Aquaculture, e.g. of fish

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Marine Sciences & Fisheries (AREA)
  • Animal Husbandry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Zoology (AREA)
  • Farming Of Fish And Shellfish (AREA)

Abstract

The present invention relates to an automatic water restitution system for a saltwater fish aquarium which is capable of restituting seawater automatically to maximize the convenience of the seawater management. The system includes: a sea salt supplier (20) which discharges the sea salt (ts) stored on the inside through a sea salt input means (22); a seawater tank (30) which is mixed with the water and the sea salt to prepare the seawater; a farming tank (40) which receives the seawater from the seawater tank (30), discharges the existing seawater, and farms marine fish; a second water level sensor (P2) sensing the water level of the farming tank (40); and a controller unit (50) which controls the operation of the sea salt input means (22) of the sea salt supplier (20) to adjust the amount of the sea salt discharged to the seawater tank (30), adjusts the amount of water flowing into the seawater tank (30), receives a sensing signal from the second water level sensor (P2) in order to restitute the seawater in the farming tank (40) to adjust the amount of seawater discharged from the farming tank (40) and the amount of seawater supplied from the seawater tank (30). The present invention supplies new seawater to the farming tank (40) at preset time, discharges the existing seawater including a contamination source of the farming tank (40) to the outside, thereby automatically restituting the seawater in the farming tank (40). Accordingly, the present invention can maximize the convenience of the seawater management. The present invention can create an optimal habitat environment for the marine fish and safely farm the marine fish without diseases.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water tank for aquarium,

The present invention relates to an automatic return system for a sea water aquarium that can maximize the convenience of the sea water management by making the sea water automatically return (float).

Generally, a sea anemone aquarium is for raising various marine fishes living in the sea. Such a sea anemone aquarium is used for ecological education of children or for hobby life.

Especially, it is very important to create a habitat environment in which various marine fishes can live well without diseases, and in order to do so, various kinds of harmful substances such as food waste, excrement, .

For this purpose, conventionally, the aquarium has to be cleaned at regular intervals. In order to clean the aquarium every time, the water contained in the water tank must be completely replaced. Therefore, troublesome problems and especially, There was a hassle such as having to do.

In order to solve the above problems, Korean Utility Model Registration No. 20-0445575 (Sterilization and Purification Device for Live Aquarium / Aug. 09, 2009) and Korea Registered Utility Model No. 20-0440453 (Cleaner for aquarium / 2006.06.05).

The above-mentioned 20-0445575 can purify and sterilize the water contaminated by the waste materials generated in various fishes and shellfishes inside the live fish aquarium, and then supply the water into the aquarium.

In addition, the No. 20-0440453 is constructed so as to draw up a secretion in the sand using a motor, move it to an external cleaner, remove the filter residue with a predetermined filter, and send it back into the main tank.

The above-mentioned conventional techniques are provided separately from the aquarium water tank, and it is troublesome to install the water tank every time of cleaning and dismantle it after use.

On the other hand, another conventional technique is Korean Patent Laid-Open No. 10-2012-0093642 (filtration device for filtering seawater in an aquarium / Aug. 22, 2012), which can purify seawater stored in an aquarium cleanly and cleanly And at the same time, a technique of efficiently increasing the filtration function of seawater by using various filters is disclosed.

However, in the prior art, since the aquarium is discharged with seawater, filtered using a filter, and then injected into an aquarium, the replacement cycle of the filter is short, which has a great difficulty in managing the seawater due to a large replacement cost and maintenance cost.

1. Korean Patent No. 10-0564147 (Water purification and sterilization device of seawater / Mar. 20, 2006) 2. Korean Patent No. 10-0254136 (Circulating Filtration System of Marine Aquaculture System for Marine Water Tissue Culture by Biofilm Filtration and Ozone Denitration Method / 2000.01.31) 3. Korean Patent No. 10-1021911 (circulation filtration system for sea water fish tank for exhibition / 2011.03.07)

The present invention relates to an automatic return system for a sea water aquarium that can maximize the convenience of the sea water management by making the sea water automatically return (float).

According to an aspect of the present invention,
A case having a hopper for receiving seawater salt therein and a discharge port for discharging the seawater salt from the hopper and a discharge port for discharging the seawater salt from the hopper, A transfer screw, and a motor for rotating the transfer screw, and a motor for rotating the transfer screw, and a rotary shaft rotatably installed through a torsion spring for opening and closing the discharge port of the case, rotated by the seawater salt, And a cover for blocking the water flowing into the discharge port by closing the discharge port;
A seawater tank in which seawater is mixed with water to produce seawater;
The aquaculture tank is supplied with seawater from the seawater tank, the existing seawater is discharged and the aquaculture can be cultivated;
A second level sensor for sensing a level of the culture tank;

The controller controls the motor of the seawater salt supplier to control the amount of seawater discharged to the seawater tank, adjusts the amount of water flowing into the seawater tank, and transmits a sensing signal from the second level sensor And a controller for controlling the amount of seawater supplied from the seawater tank and the amount of seawater discharged from the aquaculture tank.

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In addition, in the present invention, the seawater tank is further provided with a first level sensor capable of sensing the level of seawater.

Further, in the present invention, the seawater tank is further provided with a first salinity sensor for measuring salinity in seawater.

Further, in the present invention, the aquaculture tank further comprises a second salinity sensor for measuring salinity in seawater.

In addition, in the present invention, the seawater tank is further provided with aeration to supply oxygen and seawater to the seawater while allowing water and seawater to be evenly mixed.

Further, in the present invention, the seawater tank is provided with a first temperature sensor for measuring the temperature of the seawater, and a first heater for warming the seawater;

And a second temperature sensor for measuring the temperature of the seawater and a second heater for heating the seawater are further provided in the aquarium.

According to this embodiment, new seawater is supplied to the aquaculture farm at the designated (set) time, and the existing seawater containing the aquaculture source of the aquaculture tank is discharged to the outside so as to automatically return the seawater of the aquaculture tank. This can maximize convenience, thereby making it possible to create the optimal habitat environment for marine fish (marine fish), and thus the advantage of safely breeding marine fish (marine fish) without disease .

According to the present embodiment, seawater is supplied to the discharge port of the means for introducing seawater salt through the torsion spring so that the evaporated seawater is prevented from flowing into the inside of the vessel to deposit the seawater. It is very useful because it blocks.

According to this embodiment, since the second salinity sensor, the fourth pipe and the fourth valve automatically adjust salinity to the seawater in the amniotic water tank, the habitat environment of marine fishes can be optimized, Management has the advantage of being more convenient.

In addition, according to the present embodiment, since the bubble generated from the aeration serves to increase the oxygen in the seawater and stir the seawater salt and the purified water, the dissolution rate between the purified water and the seawater can be accelerated, There is an advantage that the convenience of management can be maximized.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view of a system for automatically returning a sea anchor aquarium according to a first embodiment of the present invention; FIG.
FIG. 2 is a view showing the means for introducing seawater salt in FIG. 1; FIG.
FIG. 3 is a block diagram showing the interrelationship among the respective components of FIG. 2;
FIG. 4 is a schematic view of a system for automatically returning a sea salt aquarium according to a second embodiment of the present invention; FIG.
5 is a view showing another embodiment of a first pipe in a sea water aquarium automatic return system according to a second embodiment of the present invention.
Fig. 6 is a block diagram showing the interrelationship among the respective components of Fig. 4; Fig.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a view schematically showing a system for automatically returning a saltwater aquarium according to a first embodiment of the present invention. FIG. 2 is a view showing a means for introducing seawater salt in FIG. 1, Is a block diagram illustrating interrelationships among elements.

1 and 2, a system for automatically recovering a saltwater aquarium according to a first embodiment of the present invention comprises a seawater salt supplier 20, a seawater tank 30, and a tank 40, The fresh seawater is supplied to the aquaculture tank 40 and the existing seawater including the pollutant source of the aquaculture tank 40 is discharged to the outside so as to automatically return the seawater of the aquaculture tank 40 It is possible to maximize the convenience of sea water management and thereby to create an optimal habitat environment for marine fishes to be cultivated so that marine fishes can be safely raised There is an advantage to be able to.

The seawater salt supply unit 20 includes a hopper 21 and a seawater salt supply unit 22 and supplies the seawater salt st stored therein to the seawater tank 30.

In this case, the hopper 21 is a vessel for forming a low level of total light, and the seawater salt st is received and stored therein.

The seawater salt injecting means 22 is a mechanism for controlling the operation of the seawater salt injecting means 22 by controlling the operation of the control unit 50 to interrupt the discharge of the seawater salt st. A conveying screw 22b for conveying the seawater salt st introduced through the inlet 22a-1 to the outlet 22a-1, And a motor 22c that is controlled by the operation of the feed screw 22b to rotate the feed screw 22b.

However, the seawater salt injecting means 22 is only one embodiment. For example, if the operation is controlled by the control unit 50 to inject the seawater salt st in a known manner, Applicable.

The seawater tank 30 is a water tank for storing seawater as a mixture of seawater salt st and water. The seawater tank 30 is provided with a first pipe Pi1. The first pipe Pi1 is connected to the first pipe Pi1, Can be introduced.

However, the water introduced from the outside generally means tap water. Such tap water contains a chlorine component, and if sea water is formed through the chlorine component, there is a serious problem that marine fish may die.

For this purpose, it is preferable that the filter 10 is installed in the first pipe Pi1 to purify and discharge the tap water. For example, the filter 10 may be a reverse osmosis membrane and a deionized water (RO / DI) function can be applied. In addition, various known filters capable of performing the same function can be applied.

The first pipe Pi1 is provided with a first valve V1 intermittently interrupting the flow of water flowing into the seawater tank 30 through the filter 10, The valve V1 is operated and controlled by the control unit 50.

The aquaculture tank 40 is an aquarium for receiving various marine fishes.

For example, the seawater tank 30 and the aquaculture tank 40 are connected to each other through a second pipe Pi2 to allow the seawater contained in the seawater tank 30 to flow into the aquaculture tank 40, 40 is provided with a third pipe Pi3 and existing seawater containing contaminants stored in the aquarium 40 through the third pipe Pi3 is discharged to the outside (sewage).

The second pipe Pi2 is provided with a second valve V2 for interrupting the flow of seawater and is operated and controlled by the control unit 50. The third pipe Pi3 is connected to the aquarium 40 And a third valve V3 for controlling the discharge of the seawater to the existing seawater.

The second pipe Pi2 is provided with a first pump Pu1 that is operated and controlled by the control unit 50 to load the seawater in the seawater tank 30 into the aquarium 40, May be provided with a second pump Pu2 that is operated and controlled by the control unit 50 to lift the existing seawater of the aquarium 40 and discharge it to the outside.

The second water level sensor P2 is installed in the aquarium 40 to sense the water level and output the water level to the control unit 50, and either an electronic or mechanical sensor is installed.

The control unit 50 operates the third valve V3 and the second pump Pu2 so that the seawater of the aquaculture tank 40 can be returned to the outside, And controls the operation of the second valve (V2) and the first pump (Pu1) to regulate the amount of seawater supplied to the aquaculture tank (40).

Also, the method of manufacturing seawater in the seawater tank 30 can be easily and automatically manufactured through the control unit 50. For example, the first valve V1 is opened to control the purified water to flow for a predetermined time And controlling the motor 22c to the seawater salt injecting means 22 to control the amount of the seawater salt st discharged into the seawater tank 30.

According to this embodiment, the fresh seawater of the seawater tank 30 is supplied to the aquaculture tank 40 in accordance with the designated (set) time, and the existing seawater contaminated in the aquaculture tank 40 is discharged to the outside, ) Can be maximized to maximize the convenience of sea water management by making it possible to automatically return the sea water of the sea fish (marine fish), thereby making it possible to create an optimal habitat environment for marine fish (marine fish) There is an advantage that the fish (marine fish) can be safely raised (raised) without disease.

In this embodiment, as one embodiment, the existing seawater of the aquarium 40 is discharged through the third pipe Pi3, the third valve V3 and the second pump Pu2. (Not shown) and a skimmer (not shown) instead of the third pipe (Pi3), the third valve (V3) and the second pump (Pu2) It is possible to supply fresh seawater to the aquaculture tank 40 while discharging the existing seawater, and various other known methods may be applied.

FIG. 3 is a view schematically showing a system for automatically returning a sea water aquarium according to a second embodiment of the present invention. FIG. 5 is a schematic view showing an automatic return system for a sea water aquarium according to a second embodiment of the present invention, FIG. 5 is a block diagram showing the interrelationship among the respective components of FIG. 3. FIG.

The automatic return system of a sea water aquarium according to the second embodiment of the present invention is characterized in that the first water level sensor P1 and the cover 23, the first and second salinity sensors S1 and S2, The two heaters H1 and H2, the fourth pipe Pi4, the fourth valve V4 and the aeration AR are further reinforced.

The seawater tank 30 is further provided with a first level sensor P1 for sensing the level and outputting the level to the control unit 50, and may be installed either as an electronic or mechanical sensor.

The control unit 50 receives the sensing signal from the first level sensor P1 and operates the first valve V1 to control the inflow amount of the water flowing into the seawater tank 30 There is an advantage that it can be adjusted accurately.

Meanwhile, in the case of the seawater salt injecting means 22, the discharge port 22a-2 is opened, and the seawater is evaporated and deposited on the conveying screw 22b. As a result, the seawater salt st is clumped and lumps, Jinhae (st) has a fundamental problem that is insoluble in water.

In the case of this embodiment, the discharge port 22a-2 is opened or closed via the torsion spring Ts to the discharge port 22a-2 of the seawater salt input means 22, The cover 23 is reinforced to solve the above problems.

According to this embodiment, when the set seawater salt st is accumulated on the cover 23, the cover 23 is rotated downward to discharge the seawater salt st to the seawater tank 30, The cover 23 is restored to its initial state due to the restoring force of the torsion spring Ts to close the discharge port 22a-2, and thus it is very useful because it essentially blocks the seawater salt st from being accumulated due to evaporation of the seawater.

However, this is merely one embodiment, and any known one can be applied as long as it can perform the same function.

Meanwhile, as shown in FIG. 5, at least one nozzle Nz inclined downward is provided at the end of the first pipe Pi1.

According to the present embodiment, a vortex is formed naturally by the purified water injected through the nozzle Nz, thereby accelerating the mixing of the purified water and the seawater salt st, thereby making it possible to rapidly produce seawater. Particularly, Even if a salt (st) is added, it can dissolve more quickly, which is quite useful.

The first salinity sensor S1 is installed in the seawater tank 30 to measure the salinity of the seawater.

In this embodiment, the value measured by the first salinity sensor S1 is transmitted to the control unit 50, and the control unit 50 compares the measured value with the preset value, Or the first valve (V1).

For example, when the salinity of the seawater stored in the seawater tank 30 is increased, the controller 50 opens the first valve V1 to supply the purified water. When the first level sensor P1 senses the set level, (50) closes the first valve (V1) to stop the supply of purified water.

When the salinity of the seawater stored in the seawater tank 30 is lowered, the controller 50 operates the seawater salt injector 22 of the seawater salt supplier 20 to supply a predetermined amount of seawater salt st , And controls the first salinity sensor (S1) to stop the seawater salt input means (22) of the seawater salt supplier (20) when it detects the set salinity.

Therefore, according to the present embodiment, seawater can be easily and easily produced through the first salinity sensor S1, which is quite convenient.

Meanwhile, the water tank 40 is installed in the room to function as a humidifier for the purpose of coral fishes (marine fish) and serves as a humidifier. As the water in the water tank 40 evaporates as a predetermined time elapses, The second level sensor P2 detects the level of the lowered seawater and outputs the detected level to the control unit 50. The control unit 50 controls the second valve V2 and the first pump Pu1 ), It is difficult to manage because of the salinity which is not suitable for the marine fishes.

It should be noted that in the case of the present embodiment, the second salinity sensor S2, the fourth pipe Pi4 and the fourth valve V4 are installed to solve the above problems.

The second salinity sensor S2 is installed in the aquaculture tank 40 to measure the saltiness of the seawater and the fourth pipe Pi4 is branched from the first pipe Pi1, And the fourth valve V4 is installed on the fourth pipe Pi4 and is controlled by the control unit 50 to intermittently flow the purified water flowing through the filter 10 .

The second salinity sensor S2 detects the salinity of the seawater due to evaporation and outputs the salinity to the control unit 50. The control unit 50 detects the salinity of the seawater, When the second salinity sensor S2 senses the set water level, the controller 50 closes the fourth valve V4 and blocks the supply of the purified water.

Therefore, according to the present embodiment, since the salinity is automatically adjusted to the sea water of the water tank 40 by the second salinity sensor S2, the fourth pipe Pi4 and the fourth valve V4, (Marine fishes) can be optimally conditioned while the management is more convenient.

Meanwhile, the seawater in the seawater tank 30 is prepared by mixing the purified water and the seawater salt (st). In this case, when the seawater salt (st) is agglomerated, There may be inconvenience.

In this embodiment, the aeration (AR) is installed in the seawater tank 30 to accelerate the dissolution rate between the purified water and the seawater (st), thereby solving the above problems.

In this embodiment, the bubble B generated from the aeration AR increases the oxygen in the seawater and stirs the seawater salt (st) and the purified water. Therefore, the dissolution rate between the purified water and the seawater salt (st) And it is advantageous in that it is not necessary to artificially stir the manager, which maximizes the convenience.

If necessary, the aeration tank (40) may also be provided with an aeration (AR).

A first temperature sensor T1 and a first heater H1 are installed in the seawater tank 30 and a second temperature sensor T2 and a second heater H2 are installed in the water tank 40 .

The first temperature sensor T1 measures the temperature of the seawater in the seawater tank 30 and outputs the measured temperature to the controller 50. The second temperature sensor T2 measures the temperature of the seawater in the water tank 40 And outputs it to the control unit 50.

The control unit 50 receives the temperature values from the first temperature sensor T1 and the second temperature sensor T2 and compares the received temperature values with a preset value to determine whether the first heater H1 and the second heater H2 Respectively.

For example, if the value set in the controller 50 is 27 ° C, the sea water temperature in the seawater tank 30 is 22 ° C, and the temperature in the water tank 40 is 27 ° C, 30 to raise the temperature of the seawater to be equal to the seawater temperature of the amniophilic tank 40. [

On the other hand, if the temperature of the purified water is increased through the heater H1 installed in the seawater tank 30, the dissolution rate between the purified water and the seawater salt (st) together with the aeration (st) It is much useful because it can accelerate more.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims.

10: filter 20: seawater salt feeder 21: hopper
22: Seawater salt input means 22a: Case 22a-1: Input port
22a-2: Outlet port 22c: Motor 23: Cover
30: seawater tank 40: aquaculture tank 50: control unit
Pi1, Pi2, Pi3, Pi4: first, second, third, and fourth pipes V1, V2, V3, V4: first, second,
Pu1, Pu2: first and second pumps P1, P2: first and second water level sensors
T1 and T2: first and second temperature sensors S1 and S2: first and second salinity sensors
H1, H2: 1st and 2nd heaters AR: Aeration

Claims (7)

A hopper in which seawater salt is contained; A case having an inlet through which the seawater salt from the hopper is introduced and an outlet through which the introduced seawater salt is discharged, a conveying screw inserted in the case, for conveying the seawater salt introduced through the inlet to the outlet, A seawater salt injecting means composed of a motor for rotating the seawater; And a cover rotatably installed through the torsion spring to open and close the discharge port of the case and rotated by the weight of the seawater salt and restored by the torsion spring to block the water flowing into the discharge port by closing the discharge port. Feeder and:
A seawater tank in which the seawater salt and water are mixed to produce seawater;
The seawater is supplied from the seawater tank and the existing seawater is discharged,
A second level sensor for sensing the level of the culture tank;
The controller controls the motor of the seawater salt supplier to control the amount of seawater discharged to the seawater tank, adjusts the amount of water flowing into the seawater tank, and transmits a sensing signal from the second level sensor And a controller for controlling the amount of seawater supplied from the seawater tank and the amount of seawater discharged from the aquaculture tank.
The method according to claim 1,
Wherein the seawater tank is further provided with a first level sensor capable of sensing the level of the seawater.
The method according to claim 1,
Wherein the seawater tank further comprises a first salinity sensor for measuring salinity in the seawater.
The method according to claim 1,
And a second salinity sensor for measuring the salinity of the seawater is additionally provided in the aquarium.
The method according to claim 1,
Wherein the seawater tank is further provided with aeration for supplying oxygen and seawater to the seawater while allowing the water and the seawater to be evenly mixed.
6. The method according to any one of claims 1 to 5,
Wherein the seawater tank is provided with a first temperature sensor for measuring the temperature of the seawater and a first heater for warming the seawater;
A second temperature sensor for measuring the temperature of the seawater and a second heater for warming the seawater are further provided in the aquarium.
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109601465A (en) * 2019-01-12 2019-04-12 魏语涵 A kind of seawater automatic water-exchanging system of fish tank
KR20200063370A (en) 2018-11-23 2020-06-05 박영현 Water exchange system using the Internet of Things
CN113693013A (en) * 2021-08-19 2021-11-26 钦钦 Municipal lake ecological control device
KR20230080534A (en) 2021-11-30 2023-06-07 김준우 Automatic water exchange system for fish tank

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003199455A (en) 2002-01-08 2003-07-15 Tetra Co Ltd Method and apparatus for proliferating minute alga
KR100906732B1 (en) * 2007-10-30 2009-07-07 이현철 A Water Tank

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003199455A (en) 2002-01-08 2003-07-15 Tetra Co Ltd Method and apparatus for proliferating minute alga
KR100906732B1 (en) * 2007-10-30 2009-07-07 이현철 A Water Tank

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20200063370A (en) 2018-11-23 2020-06-05 박영현 Water exchange system using the Internet of Things
CN109601465A (en) * 2019-01-12 2019-04-12 魏语涵 A kind of seawater automatic water-exchanging system of fish tank
CN113693013A (en) * 2021-08-19 2021-11-26 钦钦 Municipal lake ecological control device
KR20230080534A (en) 2021-11-30 2023-06-07 김준우 Automatic water exchange system for fish tank

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