KR101675718B1

KR101675718B1 - Recirculating aquaculture system with secondary closed-circuit

Info

Publication number: KR101675718B1
Application number: KR1020160034326A
Authority: KR
Inventors: 박희원; 박훈철
Original assignee: 박희원
Priority date: 2016-03-23
Filing date: 2016-03-23
Publication date: 2016-11-11

Abstract

The present invention provides a device for automatically supplying culturing raising water. The device comprises: a seawater line for receiving natural seawater, and supplying the seawater to a culturing water tank; a filter connected with the seawater line through a pipe, and removing solid impurities in the seawater; a sterilizer for sterilizing the seawater filtered by the filter; a heat exchanger disposed between a boiler for heating the sterilized and filtered seawater and a thermokeeping water tank, and exchange heat between circulating warm water and raw water; a heater for heating the seawater heated by the heat exchanger; a cooler for cooling the heated seawater at a suitable temperature; a raising water supplementing tank for storing the seawater of a suitable temperature; and a culturing tank for culturing organisms by being provided with the seawater of a suitable temperature from the raising water supplanting tank. Raising water of the culturing water tank is re-connected with the filter and is reused to constitute a circulating circuit.

Description

RECIRCULATING AQUACULTURE SYSTEM WITH SECONDARY CLOSED-CIRCUIT BACKGROUND OF THE INVENTION 1. Field of the Invention < RTI ID = 0.0 >

The present invention relates to a circulating filtration type feeding water supply system, and more particularly, to a circulation type feeding water feeding system which uses filtration, sterilization, and filtration of externally introduced feed water for filtration and re- Secondary closed circuit circulation type feeding system that keeps the constant water quality by circulating and managing the water stored in the replenishing tank in the feeding system in the feeding water tank, Supply system.

Fish cultures that feed fish and shellfish include cage, exponential, water-based, and onshore water tanks, depending on the feeding method of the breeding water. Of these, marine caged aquaculture is the largest and the supply of fish is also the largest. The caged fish are constantly using dissolved oxygen and salts that are present in large quantities of natural water, and feed residue and aquaculture feces from the aquaculture process enter the natural water, . A large amount of seawater is used in caged fish and shellfish mainly produced in the sea.

However, this cage type has a bad influence on the environment due to an increase in the density of cultivated land, and there are many factors that can not be controlled, such as typhoon, high temperature or low water temperature, An exponential aquaculture that is pond or pond farming is harmful to the environment because it does not have sufficient purification process of wastewater discharged from the aquaculture. Water-based aquaculture is a continuous way of passing water through the breeding ground, which can be accommodated by increasing the density of the aquaculture depending on the amount of water introduced, oxygen is supplied by the influent, and excreta and debris are discharged together through the effluent .

Freshwater or seawater is brought into the aquarium and exchanged for several times a day, several times a day, and the aquaculture that is cultivated has the advantage that it can control the aquaculture environment. However, in the case of sea water fishery, there was a difficulty in raising the water, and it was difficult to expose harmful bacteria and virus inflows. Therefore, a recirculating aquaculture system (RAS) for filtrating and reusing the reared water and a Shallow Raceway System (SRS) for constantly feeding the reared water in a multi-layer water tank have been developed in the aquacultural aquaculture system. In recent years, bioflavonoids have been developed which are capable of decomposing pollutants and bringing beneficial microorganisms to fish with fish in aquaculture tank.

The management of breeding water is one of the most important parts in this type of onshore aquaculture. In general, fish and shellfish are prone to a great deal of stress, from larval and rapid changes in temperature, from fish to fish. In the case of culturing the natural raw water from the outside, there is a disadvantage in that it can cause mass mortality due to the inflow of external hospital material, but it is disadvantageous in the case of producing water such as dissolved oxygen and pH in the breeding water. Occurs.

In recent years, a circulation filtration method has been developed in which natural raw water supplied from the outside is used for aquaculture, which is then filtered and sterilized and reused in aquaculture. In order to expel the aquaculture products, waste products, It is advantageous to construct an eco-friendly form system because it is filtered and reused. However, re-use of the pH of the breeding water, ammonia nitrogen removal problems and problems, such as filtration and sterilization to maintain the appropriate water quality.

In particular, it is important to control the number of breeding fishes in order to prevent rapid changes in water temperature for stable culture of fishery products such as larvae and fry. In Korea, where the four seasons are clear, water temperature management is considered to be very important, because the temperature of the raising water in the winter season is usually lowered to 4 ° C, and in the summer season it is directly affected by the external environment .

For this reason, much energy is consumed for the warming and cooling of the breeding water for the winter season or the summer season, and when the breeding water used for the culture is discharged as it is, the energy is wasted as well as the environmental pollution caused by the hot water.

In the case of farms adopting closed-loop filtration methods, it is necessary to cultivate fish larvae and fishes that are highly sensitive to environmental changes, to conduct sophisticated experiments on cultured fish, or to maintain large-scale farms In this case, much energy is consumed to maintain the water quality of the breeding water, and efforts to save energy can lead to massive deaths of cultured fish.

Therefore, it is necessary to construct a supply system of breeding water that can save energy while stably supplying water quality water that can satisfy environmental conditions required by aquaculture organisms.

In Korean Patent No. 10-0460022, there is disclosed a water treatment system comprising a breeding tank having a discharge port formed at one side thereof for breeding marine fishes and seafood, a filter for filtering and forcedly circulating seawater discharged through the discharge port, And a process of generating an oxidizing agent by an anodic electrolysis reaction by raising the pH in the water by generating OH - ions by the cathodic electrolysis reaction of the seawater supplied from the seawater circulation unit and repeating this process several times, An activated carbon adsorption tower connected to the other end of the electrolytic apparatus through a first pipe to remove unreacted residual chlorine from the effluent of the electrolytic apparatus; And a DC power supply unit for supplying a negative electrode and a positive electrode power to generate the DC power, It discloses a ceremony of ammonium nitrogen removal and sterilization apparatus. Korean Patent Registration No. 10-0706273 discloses a filtration system in which the components constituting the system are simplified and a space occupied by the filtration system is provided, including a breather disposed below the biological filtration tank and connected to the air supply device to supply air into the water And a circulating filtration culture system and a shrimp breeding water circulation filtration method in which biofiltration efficiency is enhanced. Korean Patent No. 10-1551856 discloses a method in which water separated from the water collecting tank 5 and the water collected from the water collecting tank 5 are brought into contact with the sponge filter material 38 exposed in the air and subjected to a first aerobic treatment, And a filtration unit (7) for returning the treated water to the water tank (3). Korean Patent Registration No. 10-1315624 discloses a water tank having a water collecting tank for collecting dirt at the center so as to generate a rotating water flow and a first water channel formed as a wall partitioned at one side wall of the water tank, A second water channel formed in the first water channel and configured to supply oxygen and send water to the second water channel, and a wall formed in a wall on one side wall of the filtering water tank to be connected to the water inlet of the filtering water tank, A third water channel which is formed by a wall structure partitioned between the breeding water tank and the filtration water tank so that the water of the filtered water tank can be introduced into the water receiving portion of the breeding water tank, And a sedimentation tank for separating and collecting dirt collected in the collecting part formed at the center of the bottom surface of the bottom surface . However, the above-mentioned inventions use filtration and sterilization of the breeding water introduced from the outside for culturing, re-use the effluent water by filtration and sterilization again, and keep the number of breeding water tanks supplied to the aquaculture tank closed, The present invention differs from the technical features of the present invention in that the secondary closed circulation type feed water feeding system is provided to maintain the water quality and supply the water to the aquaculture tank.

The present invention relates to a method and apparatus for controlling the number of breeding water in order to prevent rapid changes in water temperature for stable culture such as larvae, fishes and test fishes in the conventional circulation filtration type aquaculture, And to provide a feedwater circulation supply device capable of saving energy.

In order to solve the above-mentioned problems, the present invention provides a seawater replenishing water tank for obtaining natural seawater and supplying it to a culture water tank, a filter for removing solid impurities in seawater connected to the seawater replenishing water tank, A heater for warming the warmed seawater from the heat exchanger, a warmer for warming the warmed seawater from the heat exchanger, a warmer for warming the warmed seawater from the heat exchanger, a warmer for warming the sterilized filtered seawater, A breeding water reservoir for storing seawater having an appropriate temperature, a breeding water tank for culturing aquaculture by supplying seawater having an appropriate temperature from a breeding water replenishment tank, And is reused and constitutes a circulation circuit. It provides an apparatus.

The second closed circuit circulation filtration type water supply system according to the present invention automatically supplies the water necessary for aquaculture, thereby stably supplying water quality water suitable for aquaculture sensitive to external environment change, and also saving energy We can reduce the number of fishery products and perform efficient forms.

1 is a schematic diagram of a second closed circuit circulation filtration feeding water supply system according to the present invention.
2 is a schematic view showing a secondary closing circuit of a breeding water replenishing tank supplied to the aquaculture tank of a farm.

The second closed circuit circulation type feeding water feeding system of the present invention is a system for feeding water of a certain quality to aquaculture susceptible to changes in the external environment in a conventional circulation filtration type aquaculture, It is a breeding water circulation supply device. Hereinafter, the present invention will be described in detail with reference to specific examples.

1 is a schematic diagram of a second closed circuit circulation filtration feeding water supply system according to the present invention. The present invention relates to a seawater supply line (7) for supplying raw water from a natural or natural seawater to a culture water tank (35) through physical and chemical filtration, and the seawater line (7) is connected to a strainer do. The natural seawater that has been subjected to the physical and chemical filtration is usually directly introduced into the breeding water replenishing tank 9 through the valve of the sea water line, and the breeding water that has passed through the acid type pumps a and b passes through the sterilizer 11, The breeding water fed through the anti-acid pumps c and d is disposed between the boiler 1 which warms the seawater through the two titanium heaters and the over-temperature sensor, and the hot water tank, A breeding water replenishment tank 9 for storing seawater having an appropriate temperature through coolers 18, 19, 20, and 21 for cooling the warmed seawater through the heat exchanger 4 for mutual heat exchange with the raw water to an appropriate temperature Have a return flow.

However, in the case of natural seawater that has not undergone physical and chemical filtration, it can not be directly injected into the breeding water replenishing tank, but is connected to the filter 25 through the valve to remove solid impurities in the seawater. It is necessary to pass the sterilizer 26 for sterilization. The sterilized and filtered seawater is disposed between the boiler 1 for warming the fresh water through the titanium heaters 15 and 17 and the superheated temperature sensor from the storage tank and a heat exchanger 4 for heat exchange between the circulating hot water and the raw water To the breeding water replenishment tank 9 through which the warmed seawater is passed through the coolers 18, 19, 20, and 21 for cooling the warmed seawater to an appropriate temperature and storing seawater having an appropriate temperature. In addition, the seawater is supplied from the breeding water replenishing tank 9 to the aquaculture tank 35 for culturing the aquaculture, and the breeding water used in the aquaculture tank is reused by the filter 25, And an automatic feeder for feeding water for aquaculture is provided.

The seawater taken from nature is supplied through the seawater line (7) after the sand and foreign matters are removed. The seawater raw water supplied from the sea water line (7) is filtered and sterilized at the initial stage of the farm environment, and is heated and heated to an appropriate temperature and dissolved oxygen, and used as breeding water in the aquaculture tank (35) Is used to supplement when there is a lack of breeding stock. It is preferable that the seawater introduced from the sea water line is first filtered and sterilized through the filter 25 and the sterilizer 26 in order to remove the solid impurities in the seawater to a high level and put into the breeding water replenishing tank. At this time, the sterilizer is carried out using UV and the catalyst, and is a high-grade filtration suitable for the survival of the fish, spatula, or larvae. Sterilization can be performed.

The filtered, sterilized seawater is heat-exchanged and heated through a breeding water reservoir, a titanium heater (15, 17) and an over-temperature sensor through a heat exchanger (4) having a medium heated by the boiler (1). A fresh water line (2) is installed at one side of the boiler in order to continuously supply fresh water to the boiler (1) and automatically supplies fresh water to facilitate the heat management.

The titanium heaters 15 and 17 constitute the coil for heating by titanium, so that corrosion by seawater hardly occurs. Considering that the heater used for heating the seawater was corroded by the salinity and pH of the seawater and caused leakage of water and caused the death of the aquaculture due to the leakage, the secondary closed circuit circulation filter of the present invention Titanium coil heaters (15, 17) in the breeding water supply system have excellent durability against salinity and supply stable water for breeding.

The titanium heater a 15 and the titanium heater b 17 prevent the seawater from overheating by an over-temperature sensor a 14 and an over-temperature sensor b 16, respectively, and the coolers 18, 19, 20, 21) to precisely control the heat exchanged temperature in the heat exchanger.

The breeding water discharged from the breeding water storage tank 9 is first heated by the heaters 15 and 17 to be heat-exchanged in the boiler, and the seawater cooled to the proper temperature by the coolers 18, 19, 20, And then moves back to the tank 9 to maintain the warmed state. The circulation of the breeding water that is exchanged again with the breeding water replenishing tank and introduced into the breeding water replenishing tank is continuously performed during the operation of the system of the present invention and the breeding water replenishing tank 9 is provided with the oxygen generator 30, And an oxygen measuring device 29 so that the water can be supplied to the aquarium 35 at an optimum amount.

The provision of a plurality of coolers is to maintain the temperature control inside the system, even if one of them is damaged, in case of installing a large capacity in one, because it may affect the premise of the circulation system if the cooler stops operating due to failure.

Conventional circulating filtration water supply devices are not equipped with supplementary reservoirs supplied to the aquaculture tank, or circulating or filtered water is stored in the supplement tank, and the temperature is controlled by being heated just before being supplied to the aquaculture tank Subsequently, environmental changes occurred in aquaculture when replenishing the breeding stock.

However, in the present invention, in order to prepare the breeding water for replenishing aquaculture in the breeding water replenishing tank (9) as an optimum condition for the aquaculture, it is necessary to continuously rotate the breeding water in the system and supply the water automatically, In addition to minimizing the effects, the breeding population is always flown and the movement is not stagnant in the breeding reservoir, so the water quality can always be optimized.

When the water quality of the breeding water in the breeding water tank 35 is lowered due to deterioration of the quality of the breeding water in the breeding water replenishing tank 9 or the water storage amount is lowered due to evaporation or the like, Supplemented. The flow meter 22 senses the amount of replenishing water and provides information that can be automatically controlled.

The water temperature of the second closed loop circulation type feeding water feeding system of the present invention is controlled by the temperature of the titanium heaters 15 and 17, the heat exchanger 4 connected to the boiler 1, and the coolers 18, 19, 20 and 21 It is possible to save energy by adjusting the temperature of the water by operating the whole or part of it according to the temperature condition or the like.

2 is a schematic view showing a secondary closing circuit of the breeding water replenishing tank supplied to the aquaculture tank. When the breeding water stored in the breeding water replenishing tank (9) is supplied to the culture water tank and the water level fluctuation occurs, the water level can be maintained at a certain level according to the operation of the check valve (34). The circulation of the water to the heaters 15 and 17 by the internal-type pumps 5, 6, 12 and 13 and the replenishment to the breeding water replenishment tank 9 are performed again, . This is followed by filtration, sterilization and warming from the aquarium 35 to form a second closed circuit around the breeding water replenishment tank 9 inside the first closed circuit circulation filtration system used again as the breeding water, It is a system that can supply stable and safe breeding water to fish. This can solve the problem that control of microbial and algae generation becomes difficult when the breeding water of breeding water replenishment tank (9) becomes stagnant, and can greatly reduce the risk of exposure to breeding water that is not provided with adequate water quality.

The internal-mount type pumps (5, 6, 12, 13) used in the secondary closing circuit are internal-mount type pumps in which the rotating shaft of the seawater motor is made of titanium to improve the corrosion resistance inside the pump. In general, the seawater pump moves the seawater by the suction force of the impeller rotated by the rotation of the motor by the power of the motor. In the second-stage closed circuit circulation filtration water supply system of the present invention, 6, 12, and 13 form a titanium rotary shaft coupling system by forming the first rotary shaft of the motor unit and the second rotary shaft of the impeller unit of titanium, thereby being excellent in corrosion resistance than stainless steel. The risk of our company can be greatly reduced. Also, it is possible to circulate the replenishing water of the replenishing tank (9) at all times to the heaters (15, 17) with a small energy, thereby contributing to energy saving.

In order to eliminate the risk that the secondary closing circuit of the breeding water replenishing tank of the present invention is stopped due to an unfavorable problem, the present invention is also applicable to the case where a plurality of the internal-type pumps 5, 6, 12, 13 and the titanium heaters 15, Respectively. Therefore, when a trouble occurs in one pump or heater, the number of feeding is continuously controlled by the operation of another pump and heater, and the number of feeding of the feeding water replenishing tank 9 is continuously circulated. Therefore, Thereby preventing the entire water supply system from being stopped.

The information of the level detectors 8, 27 and 28, the over-temperature sensors 14 and 16 and the dissolved oxygen measuring device 29 is transmitted to the automatic control (not shown) of the circulating filtration water supply system, The water level detector 8, 27, 28, the over temperature sensor 14, 16 and the dissolved oxygen measuring device 29 are connected to the wired and wireless alarm device 32, In case of exceeding this range, it is possible to take action immediately, so as to secure safe supply of each breeding stock.

The second closed circuit circulation type feeding water feeding system of the present invention can stably cultivate the cultured fishery system because the feeding water feeding system is not stopped completely even during power failure through the uninterruptible power supply unit (31).

The second closed circuit circulation filtration type water supply system according to the present invention automatically supplies the water necessary for aquaculture, thereby stably supplying water quality water suitable for aquaculture sensitive to external environment change, and also saving energy It can be used in aquaculture industry and aquaculture, because it can reduce the production of fish and reduce the production of fish.

1: boiler 2: fresh water line
3: Boiler circulation pump 4: Heat exchanger
5: Resistance type pump a 6: Resistance type pump b
7: Sea water line 8: Water level detector a
9: Breeding water replenishment tank 10: Insulating water tank temperature sensor
11: Sterilizer 12: Resistant pump c
13: Resonant pump d 14: Over temperature sensor a
15: Titanium heater a 16: Over-temperature sensor b
17: titanium heater b 18: cooler a
19: cooler b 20: cooler c
21: cooler d 22: flow meter
23: Resistance type pump e 24: Resistance type pump f
25: Filter 26: UV / Catalytic Sterilizer
27: Water level detector b 28: Water level detector c
29: dissolved oxygen measuring device 30: oxygen generator
31: Uninterruptible power supply unit 32: wired / wireless alarm system
33: Three-way valve for backwash discharge 34: Check valve
35: Aquaculture tank

Claims

A seawater line is formed for feeding the breeding stock from the natural or natural seawater to the breeding water tank through physical and chemical filtration. The seawater line is branched to the valve and connected to the strainer through the breeding water replenishment tank and the backwash discharge three- ,
The filter is a first closed loop circulation type system that removes dissolved solid impurities from the breeding water discharged from the aquaculture tank and feeds the breeding water to the breeding water supplement tank through a sterilizer to sterilize the filtered breeding water Lt; / RTI &
In the breeding water stored in the breeding water replenishing tank, an outflow line in which a plurality of pumps are connected in parallel, an inlet line in which a sterilizer and a flow meter are formed is connected, and the breeding water is pumped out so that the breeding water does not stagnate in the breeding water replenishing tank Sterilized and form a second closed loop circuit that automatically feeds the breeding water to the aquaculture tank through the flow meter while continuously circulating through the inlet line to the breeding water reservoir;
In the breeding water replenishment tank, an oxygen generator and a dissolved oxygen measuring device are formed to control the concentration of dissolved oxygen, a plurality of pumps are connected in parallel, and a plurality of heaters and an over-temperature sensor are sequentially connected to heat the breeding water The warmed water is heat-exchanged with the circulating hot water of the boiler water tank to be secondarily heated, and then supplied to the breeding water replenishing tank through a plurality of coolers cooling the water to a proper temperature and stored at a constant temperature;
Wherein the pump is made of a titanium material with a rotational axis of the impeller portion of the internal motor so as to have durability against salinity, and a second closed circuit circulation filtration type automatic feeding device.

delete