Search

KR-20260063931-A - Fish farm aquaculture tank

KR20260063931AKR 20260063931 AKR20260063931 AKR 20260063931AKR-20260063931-A

Abstract

The present invention relates to a fish tank for a fish farm that enables economical fish rearing by increasing dissolved oxygen levels and facilitating the separation and collection of waste through the generation of a natural rotating water flow as rearing water flows into the tank. That is, the present invention is characterized by a tank for a fish farm that is equipped with a square frame so as to circulate and supply rearing water through an inlet and an outlet, and a first swirling inducing wall surface is formed on a wall surface within the tank located in front of the direction of flow of rearing water from an inlet formed to a certain size on one side of the square frame, wherein the width of the bottom side of the first swirling inducing wall surface is formed larger than the left and right width of the inlet, so as to generate a swirling water flow in which the rearing water flowing in through the inlet hits the first swirling inducing wall surface in front in a straight line, and a second and third swirling inducing wall surfaces are sequentially formed in front of the first swirling inducing wall surface in the direction of flow of the rearing water, so as to create a natural swirling water flow action within the tank by the three swirling inducing wall surfaces formed in each of the three corners excluding the corner part of the inlet.

Inventors

  • 유병화

Assignees

  • 에어라스 주식회사

Dates

Publication Date
20260507
Application Date
20241031

Claims (5)

  1. A tank (100) equipped with a square frame to allow the circulation and supply of breeding water through an inlet (110) and an outlet (120), and A first rotation-inducing wall surface (131) is formed on the wall surface inside a tank (100) located in front of the direction of flow of the rearing water from the inlet section (110) formed to a certain size on one side of the above square frame, wherein the bottom width (P2) of the first rotation-inducing wall surface (131) is formed to be larger than the left-right width (P1) of the inlet section (110) so that the rearing water flowing in through the inlet section (110) strikes the front rotation-inducing wall surface (131) in a straight line and generates a rotational water flow. A fish tank for a fish farm, characterized in that a second turning guiding wall (132) and (133) are sequentially formed in front of the first turning guiding wall (131) in the direction of rotation of the rearing water, so that a natural rotational water flow is created in the tank by three turning guiding walls formed in each of the three corners excluding the corner portion of the water inlet (110).
  2. In Article 1, A fish tank for a fish farm, characterized by having an external discharge port (160) formed on the bottom surface of the tank (100) to separate and discharge breeding water, and a discharge opening/closing member (162) made of a vertical pipe installed so as to protrude above the water level of the tank (100) to be opened/closed, and having a fixing cap (164) attached to the upper part of the pipe portion of the discharge opening/closing member (162).
  3. In Article 1, A fish tank for a fish farm, characterized in that the inlet (110) and outlet (120) formed in the above tank (100) are formed at a certain height above the bottom surface of the tank (100), and the inlet (110) and outlet (120) are installed at a height of 50% or more above the wall height of the tank (100) so that the supernatant of the circulating rearing water can flow into or be discharged into the tank (100).
  4. In Article 1, A fish tank for a fish farm, characterized in that the inlet (110) and outlet (120) of the above-mentioned tank (100) have two vertical guide grooves (171) and (172) formed in parallel at both ends so that a fish blocking net (174) or a rearing water blocking plate (176) can be selectively fitted and connected.
  5. In Article 1, A fish farm tank characterized by having an automatic feed supply device (180) installed to supply feed to fish raised in the above tank (100), wherein the automatic feed supply device (180) is installed on the upper side of the wall of the tank (100) located at the third swirling induction wall surface (133) corresponding to a part of the tank (100) where the rotating water flow is small.

Description

Fish farm aquaculture tank The present invention relates to a tank for a fish farm, and more specifically, to a tank for a fish farm that enables economical fish farming by generating a naturally occurring rotating water flow as rearing water flows into the tank, thereby increasing the amount of dissolved oxygen and facilitating the separation and collection of waste. Generally, fish farms require high-density farming capable of producing a large quantity of fish in a small area because it is difficult to secure sufficient water surface area due to geographical conditions and other factors. Accordingly, recirculating aquaculture systems, which can maintain a stable water quality environment through water recirculation and various water treatment processes, are being commercialized because they offer high energy savings and enable high-density fish production. In high-density recirculating aquaculture farms that have been widely used recently, water wheels, air diffusers, or even liquid oxygen, high-pressure oxygen, and oxygen generators are used to increase the dissolved oxygen content in the tanks to supply insufficient oxygen; consequently, these farms are being operated using an inefficient method that incurs high costs. In addition, when using pure oxygen such as liquid oxygen, de-gassing apparatuses are used to reduce toxic carbon dioxide generated by fish in the water, or skimmers are used to remove dissolved organic matter. However, since these devices are expensive, they incur high costs, and there is also the problem of significant expenses involved in managing and operating them. FIG. 1 is a cross-sectional view showing the configuration of a tank for a fish farm according to the present invention. FIG. 2 is a planar example diagram showing the configuration of a tank for a fish farm according to the present invention. FIG. 3 is a planar example illustrating the generation of a naturally occurring rotating water flow in a tank for a fish farm according to the present invention. FIG. 4 is a cross-sectional view showing the configuration of a tank for a fish farm according to the present invention. FIG. 5 is an enlarged cross-sectional view showing the configuration of the discharge opening/closing member portion in a fish tank for a fish farm according to the present invention. FIG. 6 is an enlarged cross-sectional view showing the state in which a fish blocking net is installed in a vertical guide groove in a tank for a fish farm according to the present invention. FIG. 7 is an enlarged cross-sectional view showing the state in which a fish blocking net and a rearing water blocking plate are respectively installed in the vertical guide groove of a fish tank for a fish farm according to the present invention. Preferred embodiments of the present invention are described in detail below. In describing the present invention, specific descriptions of related known functions or configurations are omitted if it is determined that such detailed descriptions may unnecessarily obscure the essence of the invention. The present invention is characterized by a structural part of a tank applied to a recirculating filtration aquaculture system, wherein rearing water in a recirculating filtration fish farm is filtered through a filtration tank and then supplied to a tank for fish rearing, solids settled in the tank are sent to a sedimentation tank for separation and treatment, and the supernatant water from the tank is circulated and supplied to a filtration tank. Conventionally, a separate air supply means, such as an air diffuser or an oxygen generator, is provided inside the tank to increase the amount of dissolved oxygen. However, the tank (100) according to the present invention does not have a separate air supply means, and the tank (100) is equipped with a naturally occurring rotating water flow generated by the rearing water flowing into the tank (100) to increase the amount of dissolved oxygen. The fish tank (100) of the present invention is configured such that a rearing water is supplied at a constant flow rate through an inlet (110) and an outlet (120), and an inlet (110) formed of a certain size on one side of the square frame, and a first turning inducing wall surface (131) is formed on the wall surface inside the tank (100) located in front of the direction of flow of the rearing water from the inlet (110), and a second and third turning inducing wall surfaces (132) (133) are formed sequentially in front of the direction of flow of rotation so that the rearing water comes into contact with the tank in sequence, thereby generating a naturally occurring turning water flow by the rearing water flowing into the tank, so as to increase the amount of dissolved oxygen. The above-mentioned inlet section (110) is installed at a position close to the corner of a square frame and forms a first rotation-inducing wall surface (131) in the shape of a triangular hypotenuse at the corner portion including the wall