Aquaculture tanks and closed containment aquaculture systems

Abstract

The application discloses a culture tank and a closed fishery culture system, and relates to the technical field of fishery culture. The culture tank comprises a tank body, a feeding assembly, a gas conveying pipe and an oxygen supply assembly. A culture cavity is formed in the tank body. The tank body is provided with a water inlet pipe connected with the culture cavity. The feeding assembly is arranged on the tank body and used for feeding the culture cavity. The gas conveying pipe is arranged on the tank body and connected with the culture cavity, and is used for conveying gas to the culture cavity to adjust the pressure in the culture cavity. The oxygen supply assembly is arranged on the tank body and used for supplying oxygen to the culture cavity. The culture tank and the closed fishery culture system can not only adjust the environmental pressure in the culture cavity of the tank body, thereby meeting the pressure requirements of aquatic products growing in different environmental pressures, but also can reduce the influence of external environment on the aquatic products. In addition, the oxygen dissolving efficiency is higher, the oxygen dissolving needs less supplement, and the energy consumption is lower.

Description

Technical Field

[0001] This invention relates to the field of aquaculture technology, and in particular to an aquaculture tank and a closed aquaculture system. Background Technology

[0002] Existing aquaculture systems mainly consist of aquaculture ponds and water purification components. Water discharged from the aquaculture ponds is treated by the water purification components before being reintroduced into the aquaculture ponds to achieve water recycling.

[0003] However, the depth of existing aquaculture ponds is generally 1 to 2 meters, which is only suitable for aquatic products that live in shallow water. It cannot meet the growth requirements of aquatic products that live in deep water where environmental pressure is high. In addition, aquatic products in the ponds are easily affected by the external environment. At the same time, when dissolving oxygen in the water in the ponds, most of the oxygen will quickly flow from the top of the pond into the atmosphere, resulting in low oxygenation efficiency, frequent replenishment of dissolved oxygen, and high energy consumption. Summary of the Invention

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an aquaculture tank that can not only regulate the environmental pressure inside the aquaculture chamber of the tank, thereby meeting the pressure requirements of aquatic products growing under different environmental pressures, but also reduce the impact of the external environment on aquatic products. In addition, it improves dissolved oxygen efficiency, reduces the frequency of dissolved oxygen replenishment, and lowers energy consumption.

[0005] The present invention also proposes a closed aquaculture system having the above-mentioned aquaculture tank.

[0006] According to a first aspect of the present invention, a breeding tank includes a tank body, a feeding assembly, a gas supply pipe, and an oxygen supply assembly. A breeding chamber is formed in the tank body. The tank body is provided with a water inlet pipe communicating with the breeding chamber. The feeding assembly is disposed in the tank body for feeding the breeding chamber. The gas supply pipe is disposed in the tank body and communicates with the breeding chamber for supplying gas into the breeding chamber to regulate the pressure inside the breeding chamber. The oxygen supply assembly is connected to the tank body for supplying oxygen into the breeding chamber.

[0007] The aquaculture tank according to embodiments of the present invention has at least the following beneficial effects:

[0008] In this invention, water for fish and other aquatic products is supplied to the aquaculture chamber of the tank through an inlet pipe, and food is fed into the chamber via a feeding component. Oxygen is supplied to the chamber via an oxygen supply component. Because the tank is a closed structure, it not only reduces the impact of the external environment on the aquatic products, but also prevents oxygen from directly flowing into the atmosphere when supplying oxygen to the chamber via the oxygen supply component. This results in better oxygen-water mixing, higher dissolved oxygen efficiency, fewer oxygen replenishments required, and lower energy consumption. Furthermore, supplying gas to the aquaculture chamber through a gas pipe regulates the air pressure at the top of the chamber. Since the water pressure inside the chamber is affected by the air pressure environment, it indirectly regulates the water pressure within the chamber, thus simulating water pressure environments at different depths and meeting the pressure requirements of aquatic products growing under varying environmental pressures.

[0009] According to some embodiments of the present invention, the feeding assembly includes a feeding cylinder and a pressure regulating mechanism. The feeding cylinder is located at the top of the tank and communicates with the breeding chamber. A first valve is provided at the top of the feeding cylinder, and a second valve is provided at the bottom of the feeding cylinder. A storage chamber is formed between the first valve and the second valve in the feeding cylinder. The pressure regulating mechanism is located in the feeding cylinder to regulate the air pressure in the storage chamber.

[0010] According to some embodiments of the present invention, the pressure regulating mechanism includes a first regulating pipe and a second regulating pipe. One end of the first regulating pipe is connected to the feeding cylinder and communicates with the storage chamber, and the other end is used to communicate with the atmosphere. The first regulating pipe is provided with a third valve. One end of the second regulating pipe is connected to the feeding cylinder and communicates with the storage chamber, and the other end is connected to the tank body and communicates with the breeding chamber. The second regulating pipe is provided with a fourth valve.

[0011] According to some embodiments of the present invention, the aquaculture tank further includes a sewage discharge assembly, the sewage discharge assembly including a sewage discharge pipe, the sewage discharge pipe being disposed at the middle position of the bottom end of the tank body and communicating with the aquaculture chamber;

[0012] The water inlet pipe is provided in two parts, which are respectively connected to the two ends of the tank along the length direction. The two water inlet pipes are located on opposite sides of the tank along the projection of the tank along the length direction. When the two water inlet pipes supply water at the same time, the water in the breeding chamber forms a swirling flow under the push of the water discharged from the two water inlet pipes.

[0013] According to some embodiments of the present invention, water supply pipes are connected to both ends of the tank along its length, and the water inlet pipe and the water supply pipe at the same end of the tank are located on opposite sides of the tank. When the two water supply pipes supply water at the same time, the water in the breeding chamber forms a swirling flow under the push of the water discharged from the two water supply pipes.

[0014] According to some embodiments of the present invention, the aquaculture tank further includes a sewage discharge assembly, which includes a sewage discharge pipe, a sewage collection cylinder, and a filter tube. The sewage collection cylinder is located at the bottom end of the tank body, and the top end of the sewage collection cylinder is connected to the aquaculture chamber and is provided with a filter screen. The sewage discharge pipe is connected to the sewage collection cylinder, and the filter tube is located inside the aquaculture chamber. The top end of the filter tube extends to the top end of the aquaculture chamber, and the bottom end of the filter tube is connected to the sewage collection cylinder. The top end of the side wall of the filter tube is provided with a plurality of first filter holes, and the bottom end of the side wall of the filter tube is provided with a plurality of second filter holes.

[0015] According to some embodiments of the present invention, the aquaculture tank further includes a level gauge assembly, the level gauge assembly including a level gauge body, a first connecting pipe and a second connecting pipe, the first connecting pipe being connected to the top end of the level gauge body, one end of the first connecting pipe being connected to the tank body and communicating with the aquaculture chamber, the second connecting pipe being connected to the bottom end of the level gauge body, the second connecting pipe being connected to the tank body and communicating with the aquaculture chamber, and the gas supply pipe being connected to the first connecting pipe.

[0016] According to some embodiments of the present invention, the level gauge assembly further includes a sampling tube connected to the second connecting tube, the sampling tube being provided with a fifth valve; and / or, the first connecting tube is provided with a pressure sensor for detecting the air pressure inside the aquaculture chamber, the air supply pipe is provided with a sixth valve, the tank body is provided with a seventh valve communicating with the aquaculture chamber, the sixth valve and the seventh valve switching between an open state and a closed state according to the air pressure value detected by the pressure sensor.

[0017] According to some embodiments of the present invention, a detachable end cap is provided on one side of the tank body, and an intercepting plate is provided on the bottom surface of the breeding chamber near the end cap, with an extraction port formed between the top surface of the intercepting plate and the top surface of the breeding chamber.

[0018] A closed aquaculture system according to a second aspect of the present invention includes the aquaculture tank described in the first aspect of the present invention.

[0019] The closed-loop aquaculture system according to embodiments of the present invention has at least the following beneficial effects:

[0020] The aquaculture tank according to the first aspect of this invention has a closed structure, which not only reduces the impact of the external environment on aquatic products, but also prevents oxygen from flowing directly into the atmosphere when oxygen is supplied to the aquaculture chamber through the oxygen supply component. This results in better oxygen-water mixing, higher dissolved oxygen efficiency, fewer oxygen replenishment cycles, and lower energy consumption. Furthermore, by supplying gas to the aquaculture chamber through the gas pipe, the air pressure at the top of the chamber can be adjusted. Since the water pressure inside the chamber is affected by the air pressure environment, the water pressure inside the chamber can be indirectly adjusted, thereby simulating water pressure environments at different depths and meeting the pressure requirements of aquatic products growing under different environmental pressures.

[0021] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and some of these additional aspects and advantages will become apparent from the description or may be learned by practice of the invention. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0023] Figure 1 This is a schematic diagram of the overall structure of the aquaculture tank according to an embodiment of the present invention;

[0024] Figure 2 A schematic diagram of the feeding assembly installation;

[0025] Figure 3 This is a schematic diagram of the installation of the level gauge assembly;

[0026] Figure 4 for Figure 1 Enlarged view of point A in the middle;

[0027] Figure 5 for Figure 1 Enlarged view of point B in the middle;

[0028] Figure 6 This is a schematic diagram of the installation of the sewage discharge components;

[0029] Figure 7 A schematic diagram showing the formation of swirling currents in the aquaculture chamber;

[0030] Figure 8 This is a schematic diagram of the oxygen supply assembly installation.

[0031] Figure 9 This is a schematic diagram of the tank's structure.

[0032] Icon labels:

[0033] Tank body 100; Aquaculture chamber 101; Inlet pipe 102; Water supply pipe 103; End cap 104; Interception plate 105; Seedling inlet 106; Observation window 107; Seventh valve 108; Fish outlet pipe 109;

[0034] Feeding assembly 200; feeding cylinder 201; first valve 202; second valve 203; storage chamber 204; first regulating pipe 205; third valve 206; second regulating pipe 207; fourth valve 208;

[0035] Gas pipeline 300; sixth valve 301;

[0036] Oxygen supply assembly 400; oxygen delivery pipe 401; aeration disc 402;

[0037] Sewage discharge assembly 500; sewage discharge pipe 501; sewage collection cylinder 502; filter screen 503; filter tube 504; first filter hole 505; second filter hole 506;

[0038] Level gauge assembly 600; Level gauge body 601; First connecting pipe 602; Second connecting pipe 603; Sampling pipe 604; Fifth valve 605; Pressure sensor 606; Pressure gauge 607; Eighth valve 608; Ninth valve 609. Detailed Implementation

[0039] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0040] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the drawings and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0041] In the description of this invention, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features or their sequential relationship.

[0042] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0043] Aquaculture systems are equipment used for the artificial breeding of aquatic products such as fish. Existing aquaculture systems mainly include breeding ponds and water purification components. The water discharged from the breeding ponds is filtered, nitrified, and disinfected by the water purification components, and then transported back to the breeding ponds through water circulation pipes to achieve water recycling.

[0044] However, the depth of existing aquaculture ponds is generally 1 to 2 meters, which is only suitable for aquatic products that live in shallow waters. It cannot meet the growth requirements of aquatic products that live in deeper waters with greater environmental pressures, such as deep-sea fish. Furthermore, because the top of the pond is open, the aquatic products are easily affected by external environmental factors, such as ambient temperature. Also, when oxygenating the water in the pond, most of the oxygen quickly escapes into the atmosphere from the top, resulting in low oxygenation efficiency, frequent replenishment, and high energy consumption.

[0045] Therefore, the present invention provides an aquaculture tank and a closed aquaculture system, which can effectively solve the above problems.

[0046] The following is for reference. Figures 1 to 9 The present invention describes an aquaculture tank and a closed aquaculture system according to embodiments of the present invention.

[0047] Aquaculture tanks according to a first aspect embodiment of the present invention, such as Figures 1 to 9 As shown, it includes a tank 100, a feeding component 200, an air supply pipe 300, and an oxygen supply component 400.

[0048] The tank 100 is a closed structure, and an aquaculture chamber 101 is formed inside the tank 100. The aquaculture chamber 101 is used to raise aquatic products such as fish. The aquatic products can be fish or other suitable species, such as shrimp. The tank 100 is provided with a water inlet pipe 102. There can be one or more water inlet pipes 102. The water inlet pipe 102 is connected to the aquaculture chamber 101 to input water into the aquaculture chamber 101.

[0049] Feeding component 200 is provided in tank 100 for feeding aquatic products into aquaculture chamber 101.

[0050] A gas supply pipe 300 is installed in the tank 100 and connected to the breeding chamber 101. The gas supply pipe 300 can be connected to a gas generator such as an air compressor. The gas generator supplies gas to the breeding chamber 101 through the gas supply pipe 300 to regulate the pressure inside the breeding chamber 101. The gas provided by the gas generator can be air, nitrogen, or other gases that are difficult to dissolve in water.

[0051] The oxygen supply assembly 400 is connected to the tank 100 for supplying oxygen to the aquaculture chamber 101. For example, the oxygen supply assembly 400 may be connected to an oxygen generator, which inputs oxygen into the oxygen supply assembly 400, and then delivers it to the aquaculture chamber 101 through the oxygen supply assembly 400, where it mixes with the water in the aquaculture chamber 101.

[0052] In this invention, water for fish and other aquatic products is supplied to the aquaculture chamber 101 of the tank 100 via the inlet pipe 102, and food is fed into the aquaculture chamber 101 via the feeding component 200. Oxygen is supplied to the aquaculture chamber 101 via the oxygen supply component 400. Because the tank 100 of this invention has a closed structure, it not only reduces the impact of the external environment on the aquatic products, but also prevents oxygen from directly flowing into the atmosphere when oxygen is supplied to the aquaculture chamber 101 via the oxygen supply component 400. This results in better oxygen-water mixing, higher dissolved oxygen efficiency, fewer oxygen replenishment cycles, and lower energy consumption. Furthermore, the gas supply pipe 300 supplies gas to the aquaculture chamber 101, which regulates the air pressure at the top of the chamber. Since the water pressure inside the chamber 101 is affected by the air pressure environment, it indirectly regulates the water pressure within the chamber, thus simulating water pressure environments at different depths and meeting the pressure requirements of aquatic products growing under different environmental pressures.

[0053] It should be noted that the tank 100 may also be equipped with a fry inlet 106, which may be fitted with an openable and closable cover. The fry inlet 106 is used to introduce fish fry or other aquatic product seedlings. The tank 100 may also be equipped with an observation window 107 to facilitate observation of the growth status of aquatic products and the water status within the culture chamber 101.

[0054] If a feeding port and a cover for opening and closing the feeding port are directly installed in the tank 100, and feeding is done into the aquaculture chamber 101 and the cover is opened, the aquaculture chamber 101 will connect with the external environment, causing the air pressure inside the aquaculture chamber 101 to drop rapidly to atmospheric pressure. This, in turn, will cause a rapid drop in the water pressure inside the aquaculture chamber 101, thus affecting the growth of aquatic products inside the aquaculture chamber 101 and even causing the death of aquatic products inside the aquaculture chamber 101. (Reference) Figure 2As shown, in some embodiments of the present invention, the feeding assembly 200 includes a feeding cylinder 201 and a pressure regulating mechanism. The feeding cylinder 201 is located at the top of the tank 100 and communicates with the breeding chamber 101. A first valve 202 is provided at the top of the feeding cylinder 201, and a second valve 203 is provided at the bottom of the feeding cylinder 201. A storage chamber 204 is formed between the first valve 202 and the second valve 203 in the feeding cylinder 201. The pressure regulating mechanism is located in the feeding cylinder 201 to regulate the air pressure in the storage chamber 204. For example, the top and bottom of the feeding cylinder 201 can both be through-hole. The first valve 202 is used to open and close the top of the feeding cylinder 201, and the second valve 203 is used to open and close the bottom of the feeding cylinder 201. The pressure regulating mechanism is used to regulate the air pressure in the storage chamber 204, and can at least regulate the air pressure in the storage chamber 204 to near atmospheric pressure and to near the air pressure in the breeding chamber 101.

[0055] In this embodiment, when feeding is required into the aquaculture chamber 101, the air pressure in the storage chamber 204 can be adjusted to near atmospheric pressure using a pressure regulating mechanism. With the air pressures on both sides of the first valve 202 being similar, the first valve 202 can be easily opened. After the feed is poured into the storage chamber 204, the first valve 202 is closed. Then, the air pressure in the storage chamber 204 is adjusted to near atmospheric pressure using the pressure regulating mechanism, and the air pressures on both sides of the second valve 203 are similar, allowing the second valve 203 to be easily opened. The feed in the storage chamber 204 can also easily fall into the aquaculture chamber 101. Furthermore, before opening the second valve 203, since the air pressure in the storage chamber 204 is close to the air pressure in the aquaculture chamber 101, it will not affect the air pressure in the aquaculture chamber 101, thus not affecting the growth of aquatic products in the aquaculture chamber 101, and preventing the death of aquatic products in the aquaculture chamber 101. This makes it more convenient to use and more practical.

[0056] refer to Figure 2 As shown, in some embodiments of the present invention, the pressure regulating mechanism includes a first regulating pipe 205 and a second regulating pipe 207. One end of the first regulating pipe 205 is connected to the feeding tube 201 and communicates with the storage chamber 204, and the other end is used to communicate with the atmosphere. The first regulating pipe 205 is provided with a third valve 206. One end of the second regulating pipe 207 is connected to the feeding tube 201 and communicates with the storage chamber 204, and the other end is connected to the tank 100 and communicates with the breeding chamber 101. The second regulating pipe 207 is provided with a fourth valve 208.

[0057] In this embodiment, opening the third valve 206 allows the storage chamber 204 to connect with the external atmospheric environment via the first regulating pipe 205, thereby enabling the air pressure inside the storage chamber 204 to be quickly adjusted to near atmospheric pressure. Opening the fourth valve 208 allows the storage chamber 204 to connect with the breeding chamber 101 via the second regulating pipe 207, thereby enabling the air pressure inside the storage chamber 204 to be quickly adjusted to near the air pressure inside the breeding chamber 101. This design is not only simple in structure and easy to operate, but also has high adjustment accuracy and better practicality.

[0058] It should be noted that the pressure regulating mechanism can also be other structures, such as an air pump, which can be used to evacuate or release air from the storage chamber 204, thereby regulating the air pressure in the storage chamber 204. When the structure of the pressure regulating mechanism differs, the structure of the feeding component 200 will also differ accordingly, which will not be elaborated upon here.

[0059] In some embodiments of the present invention, the first valve 202, the second valve 203, the third valve 206, and the fourth valve 208 can all be solenoid valves. Multiple visual sensors can be installed inside the aquaculture chamber 101. The first valve 202, the second valve 203, the third valve 206, the fourth valve 208, and the visual sensors can all be connected to an external control system. The control system has a database and stores algorithm programs. The database stores a large amount of data, including the activity status of different aquatic products at different growth stages, the required feeding frequency, and the required feed quantity. The visual sensors can monitor the activity status of the aquatic products in real time and send the activity status information to the database. The control system compares the information sent by the visual sensors with the data in the database through the algorithm program to determine whether the aquatic products are in a hungry or full state. Based on the determination result, it controls the opening and closing of the first valve 202, the second valve 203, the third valve 206, and the fourth valve 208, thereby achieving precise feeding. This not only makes aquaculture more convenient but also increases aquaculture efficiency and improves results, while reducing feed waste and lowering economic costs.

[0060] It should be noted that in some other embodiments of the present invention, the first valve 202, the second valve 203, the third valve 206 and the fourth valve 208 may also be manual valves.

[0061] refer to Figure 1 and Figure 7As shown, in some embodiments of the present invention, the aquaculture tank further includes a sewage discharge assembly 500, which includes a sewage discharge pipe 501. The sewage discharge pipe 501 is located at the middle of the bottom end of the tank body 100 and connects to the aquaculture chamber 101. There are two water inlet pipes 102, which are respectively connected to the two ends of the tank body 100 along the length direction. The connection positions of the two water inlet pipes 102 and the tank body 100 are respectively located on opposite sides of the tank body 100. When the two water inlet pipes 102 supply water at the same time, the water in the aquaculture chamber 101 forms a swirling flow under the push of the water discharged from the two water inlet pipes 102.

[0062] For example, the drain pipe 501 supplies water mixed with excrement from aquatic products and feed residue. The two ends of the tank 100 along its length can be the first end and the second end, respectively. One inlet pipe 102 is located at the first end and the other inlet pipe 102 is located at the second end. Along the projection of the tank 100 along its length, the outlet positions of the two inlet pipes 102 can be located on both sides of the width direction of the tank 100. The outlet direction of the inlet pipes 102 can be the length direction of the tank 100, that is, the outlet direction of one inlet pipe 102 is from the first end to the second end, and the outlet direction of the other inlet pipe 102 is from the second end to the first end.

[0063] Thus, when water is supplied simultaneously by both inlet pipes 102, the water in the aquaculture chamber 101 forms a swirling current under the impetus of the water discharged from the two inlet pipes 102, with the center of the swirling current located near the middle of the tank body 100. This swirling water flow carries excrement and feed residue from the aquaculture chamber 101 towards the vicinity of the drain pipe 501 in the middle of the tank body 100, facilitating the rapid and thorough discharge of excrement and feed residue through the drain pipe 501, thereby promoting the growth of aquatic products. Furthermore, the water flow also improves dissolved oxygenation.

[0064] Water discharged from drain pipe 501 undergoes filtration, nitrification, sterilization, and other treatments before flowing back into the aquaculture chamber 101 of tank 100 via inlet pipe 102. However, during long-term aquaculture, a certain amount of water will be absorbed by the aquatic products, and some water may also be wasted through other means. (Reference) Figure 1 and Figure 7 As shown, in some embodiments of the present invention, water supply pipes 103 are connected to both ends of the tank 100 along its length. The water supply pipes 103 can periodically replenish the water in the aquaculture chamber 101 that has decreased, so that the water volume in the aquaculture chamber 101 meets the requirements for aquaculture. Moreover, the water inlet pipe 102 and the water supply pipe 103 at the same end of the tank 100 are located on opposite sides of the tank 100. When the two water supply pipes 103 supply water at the same time, the water in the aquaculture chamber 101 forms a swirling flow under the push of the water discharged from the two water supply pipes 103.

[0065] For example, one water supply pipe 103 is located at the first end, and the other water supply pipe 103 is located at the second end. Projected along the length of the tank 100, the outlet positions of the two water supply pipes 103 can be located on opposite sides of the width of the tank 100. The outlet direction of the water supply pipes 103 can be along the length of the tank 100; that is, the outlet direction of one water supply pipe 103 is from the first end to the second end, and the outlet direction of the other water supply pipe 103 is from the second end to the first end. When both water supply pipes 103 supply water simultaneously, the water in the aquaculture chamber 101 forms a swirling flow under the push of the water discharged from the two water supply pipes 103. The center of the swirling flow is close to the middle of the tank 100. Thus, the flowing water forming the swirling flow can gradually move the excrement and feed residue in the aquaculture chamber 101 to the vicinity of the drain pipe 501 in the middle of the tank 100, thereby facilitating the rapid and thorough discharge of excrement and feed residue through the drain pipe 501, which is more conducive to the growth of aquatic products. In addition, the flow of water also improves the dissolved oxygen effect.

[0066] refer to Figure 6 As shown, in some embodiments of the present invention, the aquaculture tank further includes a sewage discharge assembly 500. The sewage discharge assembly 500 includes a sewage discharge pipe 501, a sewage collection cylinder 502, and a filter pipe 504. The sewage collection cylinder 502 is located at the bottom of the tank body 100. The top of the sewage collection cylinder 502 is connected to the aquaculture chamber 101 and is provided with a filter screen 503. The sewage discharge pipe 501 is connected to the sewage collection cylinder 502. The filter pipe 504 can be vertically installed in the aquaculture chamber 101. The top of the filter pipe 504 extends to the top of the aquaculture chamber 101 and is closed. The bottom of the filter pipe 504 is connected to the sewage collection cylinder 502. The top of the side wall of the filter pipe 504 is provided with a plurality of first filter holes 505, and the bottom of the side wall of the filter pipe 504 is provided with a plurality of second filter holes 506.

[0067] For example, the top of the sludge collection cylinder 502 can be through-connected, and a filter screen 503 can be disposed at the top of the sludge collection cylinder 502. The pore size of the filter screen 503 is larger than the size of the aquatic product's excrement and feed residue, but smaller than the size of the aquatic product. The bottom end of the filter tube 504 can be through-connected and extend into the sludge collection cylinder 502. The filter screen 503 can be wrapped around the periphery of the filter tube 504 and connected to the outer wall of the filter tube 504. The pore size of the first filter hole 505 and the second filter hole 506 is larger than the size of the aquatic product's excrement and feed residue, but smaller than the size of the aquatic product.

[0068] In this embodiment, during the aquaculture process, the excrement and feed residue of the aquatic products can enter the sludge collection cylinder 502 through the filter holes of the filter screen 503, and then be discharged through the sewage pipe 501. This results in better sewage discharge and is more conducive to the growth of aquatic products. Furthermore, the filter screen 503 prevents economic losses caused by aquatic products being discharged through the sewage pipe 501. A filter tube 504 is provided, and multiple first filter holes 505 and multiple second filter holes 506 are respectively provided at the top and bottom of the side wall of the filter tube 504. Excrement and feed residue floating at the top of the breeding chamber 101 can enter the filter tube 504 through the first filter holes 505, and then be discharged through the sludge collection cylinder 502 and the sewage discharge pipe 501. Excrement and feed residue at the bottom of the breeding chamber 101 can enter the filter tube 504 through the second filter holes 506, and then be discharged through the sludge collection cylinder 502 and the sewage discharge pipe 501. In this way, the sewage discharge effect of the tank 100 is better, which makes the water in the breeding chamber 101 cleaner and more conducive to the growth of aquatic products.

[0069] It should be noted that the top of the sludge collection cylinder 502 can extend into the breeding chamber 101, or the bottom of the tank 100 can be provided with a sludge discharge port, and the top of the sludge collection cylinder 502 is connected to the sludge discharge port.

[0070] refer to Figure 1 , Figure 3 and Figure 4 As shown, in some embodiments of the present invention, the aquaculture tank further includes a level gauge assembly 600. The level gauge assembly 600 includes a level gauge body 601, a first connecting pipe 602, and a second connecting pipe 603. The first connecting pipe 602 is connected to the top end of the level gauge body 601, and one end of the first connecting pipe 602 is connected to the tank body 100 and communicates with the aquaculture chamber 101. The second connecting pipe 603 is connected to the bottom end of the level gauge body 601, and the second connecting pipe 603 is connected to the tank body 100 and communicates with the aquaculture chamber 101. The gas supply pipe 300 is connected to the first connecting pipe 602.

[0071] For example, the level gauge body 601 can be vertically installed, and can be a circular tube structure. The level gauge body 601 can be made of a transparent material, such as transparent glass or transparent plastic. The level gauge body 601 can have multiple scale lines, which can be evenly arranged along the length of the level gauge body 601. These scale lines facilitate accurate observation of the water level in the aquaculture chamber 101 by the staff. The top of the level gauge body 601 can be connected to one end of the first connecting pipe 602. The other end of the first connecting pipe 602 can be welded to the top of the tank 100 or connected by other suitable means. The top of the tank 100 can have a connection hole corresponding to the first connecting pipe 602, through which the first connecting pipe 602 communicates with the aquaculture chamber 101 of the tank 100. The bottom end of the level gauge body 601 can be connected to one end of the second connecting pipe 603. The other end of the second connecting pipe 603 can be welded to the bottom end of the tank 100 or connected by other suitable means. The bottom end of the tank 100 can be provided with a connection hole corresponding to the second connecting pipe 603. The second connecting pipe 603 communicates with the aquaculture chamber 101 of the tank 100 through this connection hole. The bottom end of the level gauge body 601 communicates with the liquid space at the bottom end of the aquaculture chamber 101 of the tank 100, and the top end of the level gauge body 601 communicates with the gas space at the top end of the aquaculture chamber 101 of the tank 100, thereby facilitating the observation of the water level in the aquaculture chamber 101 by the staff.

[0072] In this invention, the tank 100 corresponding to the level gauge assembly 600 can be machined with two connection holes, one near the top of the tank 100 and the other near the bottom. The gas supply pipe 300 can be pre-connected to the first connecting pipe 602 at the factory. During tank assembly, one end of the first connecting pipe 602 is connected to the top of the tank 100 and communicates with the aquaculture chamber 101 of the tank 100 through the connection hole at the top of the tank 100. One end of the second connecting pipe 603 is connected to the bottom of the tank 100 and communicates with the aquaculture chamber 101 of the tank 100 through the connection hole at the bottom of the tank 100. This eliminates the need to connect the gas supply pipe 300 to the tank 100, making assembly more convenient. Furthermore, the tank 100 does not need to have connection holes for the gas supply pipe 300 machined, making tank 100 machining easier. Additionally, the reduced number of connection holes on the tank 100 improves its sealing performance.

[0073] refer to Figure 3 and Figure 5 As shown, in some embodiments of the present invention, the level gauge assembly 600 further includes a sampling tube 604 connected to the second connecting tube 603, and the sampling tube 604 is provided with a fifth valve 605. For example, the sampling tube 604 may be connected to the bottom of the second connecting tube 603, the sampling tube 604 may extend downward, and the fifth valve 605 may be a manual valve or an automatic valve.

[0074] In this embodiment, during the aquaculture process, the fifth valve 605 closes the sampling tube 604 to prevent water in the aquaculture chamber 101 from flowing out of the sampling tube 604. When it is necessary to test whether the water in the aquaculture chamber 101 meets the aquaculture requirements, the fifth valve 605 can be opened to take a small amount of water from the sampling tube 604 for testing. The operation is simple, convenient, time-saving, and labor-saving. In addition, the sampling tube 604 is located on the second connecting tube 603, which not only facilitates the outflow of water from the aquaculture chamber 101, but also eliminates the need to connect the sampling tube 604 to the tank body 100 during the assembly of the aquaculture tank, making assembly more convenient. Furthermore, it eliminates the need to additionally machine a connection hole for connecting the sampling tube 604 on the tank body 100, making the tank body 100 easier to machine. In addition, the reduction in connection holes on the tank body 100 also improves the sealing performance of the tank body 100.

[0075] refer to Figure 3 and Figure 4 As shown, in some embodiments of the present invention, the first connecting pipe 602 is provided with a pressure sensor 606 for detecting the air pressure in the breeding chamber 101, and the air supply pipe 300 is provided with a sixth valve 301, which opens or closes the air supply pipe 300 according to the air pressure value detected by the pressure sensor 606. For example, the sixth valve 301 can be a solenoid valve. Both the pressure sensor 606 and the sixth valve 301 can be connected to the control system of the closed aquaculture system. When the pressure sensor 606 detects that the air pressure in the aquaculture chamber 101 is less than the preset value, it sends a signal to the controller of the control system. The controller controls the sixth valve 301 to open the air supply pipe 300, so that the air supply pipe 300 can replenish the air into the aquaculture chamber 101 in time, so that the air pressure in the aquaculture chamber 101 rises to the pressure required by the aquatic products. When the air pressure in the aquaculture chamber 101 rises to the required air pressure, the pressure sensor 606 senses and sends a signal to the controller. The controller controls the sixth valve 301 to close the air supply pipe 300, stopping the air intake. The system has a high degree of automation, is more convenient to use, and the air pressure regulation is more precise, which is more conducive to the growth of aquatic products.

[0076] refer to Figure 1As shown, in some embodiments of the present invention, a seventh valve 108 is provided at the top of the tank 100. The seventh valve 108 is connected to the breeding chamber 101. The seventh valve 108 is a pressure balancing valve. The seventh valve 108 can switch between an open state and a closed state according to the air pressure value detected by the pressure sensor 606. For example, the seventh valve 108 can be a solenoid valve. The seventh valve 108 can be connected to the control system of the closed aquaculture system. When the pressure sensor 606 detects that the air pressure in the aquaculture chamber 101 is greater than the preset value, it sends a signal to the controller of the control system. The controller controls the seventh valve 108 to open, so that some of the gas in the aquaculture chamber 101 can be discharged through the seventh valve 108, so that the air pressure in the aquaculture chamber 101 drops to the pressure required by the aquatic products. When the air pressure in the aquaculture chamber 101 drops to the required air pressure, the pressure sensor 606 senses and sends a signal to the controller. The controller controls the seventh valve 108 to close, stopping the exhaust. This system has a high degree of automation, is more convenient to use, and the air pressure regulation is more precise, which is more conducive to the growth of aquatic products. In addition, it can prevent the explosion caused by excessive air pressure in the aquaculture chamber 101, thus improving safety.

[0077] It should be noted that in some other embodiments of the present invention, the air supply pipe 300 may also be configured to both intake and exhaust air.

[0078] refer to Figure 3 and Figure 5 As shown, in some embodiments of the present invention, the second connecting pipe 603 is equipped with a pressure gauge 607 for detecting the water pressure inside the aquaculture chamber 101. The pressure gauge 607 allows staff to readily and intuitively understand the water pressure inside the aquaculture chamber 101, enabling timely adjustments to bring the water pressure to the required level, which is more conducive to the growth of aquatic products.

[0079] refer to Figure 3 and Figure 4 As shown, in some embodiments of the present invention, an eighth valve 608 is provided between the level gauge body 601 and the first connecting pipe 602. The eighth valve 608 controls the connection and disconnection between the level gauge body 601 and the first connecting pipe 602. When the level gauge body 601 is not damaged, the eighth valve 608 is operated to connect the level gauge body 601 and the first connecting pipe 602, thereby connecting the level gauge body 601 to the aquaculture chamber 101 of the tank 100, so that the liquid level height in the aquaculture chamber 101 can be observed through the level gauge body 601. When the level gauge body 601 is damaged, such as when a crack appears, the eighth valve 608 is operated to disconnect the level gauge body 601 from the first connecting pipe 602, thereby preventing gas in the aquaculture chamber 101 from escaping through the crack on the level gauge body 601 and reducing the gas pressure in the aquaculture chamber 101, thus affecting the growth of aquatic products in the aquaculture chamber 101.

[0080] refer to Figure 3 and Figure 5 As shown, in some embodiments of the present invention, a ninth valve 609 is provided between the level gauge body 601 and the second connecting pipe 603. The ninth valve 609 controls the connection and disconnection between the level gauge body 601 and the second connecting pipe 603. When the level gauge body 601 is not damaged, the ninth valve 609 is operated to connect the level gauge body 601 and the second connecting pipe 603, thereby connecting the level gauge body 601 to the aquaculture chamber 101 of the tank 100, so that the liquid level in the aquaculture chamber 101 can be observed through the level gauge body 601. When the level gauge body 601 is damaged, such as when a crack appears, the ninth valve 609 is operated to disconnect the level gauge body 601 from the second connecting pipe 603, thereby preventing water in the aquaculture chamber 101 from flowing out through the crack in the level gauge body 601, which would affect the growth of aquatic products in the aquaculture chamber 101, cause water waste, and affect the external environment.

[0081] refer to Figure 9 As shown, in some embodiments of the present invention, a detachable end cap 104 is provided on one side of the tank 100, and an intercepting plate 105 is provided on the bottom surface of the aquaculture chamber 101 near the end cap 104. An extraction port is formed between the top surface of the intercepting plate 105 and the top surface of the aquaculture chamber 101. For example, the edge of the end cap 104 may be provided with multiple first connecting parts, and the edge of the tank 100 near the end cap 104 may be provided with multiple second connecting parts. The first connecting parts and the corresponding second connecting parts can be connected by fasteners. Of course, the end cap 104 and the tank 100 can also be snap-fitted. The intercepting plate 105 and the tank 100 can be integrally formed or welded. Of course, the intercepting plate 105 and the tank 100 can also be detachably connected, for example, by fasteners or snap-fitting. The two sides of the intercepting plate 105 can abut or connect to the side wall of the aquaculture chamber 101. The intercepting plate 105 can be a mesh structure to reduce the obstruction of water flow by the intercepting plate 105.

[0082] In this embodiment, after the aquatic products are cultured, the end cap 104 can be opened to take out the cultured aquatic products. Since the interceptor plate 105 is provided, the aquatic products can be prevented from being poured out directly after the end cap 104 is opened. The staff can slowly take them out from the retrieval port between the top surface of the interceptor plate 105 and the top surface of the culture chamber 101, which is more convenient to use.

[0083] It should be noted that in some other embodiments of the present invention, the tank 100 can also be an integral structural component, and the fish outlet pipe 109 can be directly provided on the tank 100, and a valve can be provided on the fish outlet pipe 109.

[0084] refer to Figure 8As shown, in some embodiments of the present invention, the oxygen supply assembly 400 includes an oxygen supply pipe 401 and a plurality of aeration discs 402. The plurality of aeration discs 402 are disposed within the aquaculture chamber 101 and connected to the oxygen supply pipe 401. The aeration discs 402 are provided with a plurality of aeration holes. For example, the oxygen supply pipe 401 is used to connect to an external oxygen generator. There can be two oxygen supply pipes 401, which are distributed on both sides of the tank 100. There can be four aeration discs 402, which are divided into two groups. The two groups of aeration discs 402 are distributed on both sides of the tank 100. Each group of aeration discs 402 includes two aeration discs 402, and the two aeration discs 402 in the same group are connected to the same oxygen supply pipe 401.

[0085] It should be noted that the oxygen supply component 400 can also be other structures. For example, it can also include only the oxygen supply pipe 401, which directly supplies oxygen into the breeding chamber 101.

[0086] In this embodiment, the oxygen required in the aquaculture chamber 101 is generated by an oxygen generator. The oxygen generated by the oxygen generator is delivered to the corresponding aeration disc 402 through the oxygen supply pipe 401, and then aerated into the aquaculture chamber 101 through the aeration holes, thereby achieving oxygen supply. Moreover, multiple aeration discs 402 are provided, so that oxygen can enter the aquaculture chamber 101 more comprehensively and evenly, thereby allowing oxygen to fully contact with water, resulting in better oxygenation and higher oxygenation efficiency. Furthermore, when oxygen is aerated into the aquaculture chamber 101 from the multiple aeration holes of the aeration disc 402, it will form fine bubbles under high pressure, thereby allowing oxygen to fully contact with water, resulting in better oxygenation and higher oxygenation efficiency.

[0087] According to a second aspect of the present invention, a closed aquaculture system includes the aquaculture tank described in the first aspect of the present invention.

[0088] According to an embodiment of the present invention, a closed-loop aquaculture system employs an aquaculture tank as described in the first aspect of the invention. Water for fish and other aquatic products is supplied to the aquaculture chamber 101 of the tank 100 via an inlet pipe 102. Feed is added to the aquaculture chamber 101 via a feeding component 200, and oxygen is supplied to the aquaculture chamber 101 via an oxygen supply component 400. Because the tank 100 of the present invention has a closed structure, it not only reduces the impact of the external environment on aquatic products, but also prevents oxygen from directly flowing into the atmosphere when oxygen is supplied to the aquaculture chamber 101 via the oxygen supply component 400. This results in better oxygen-water mixing, higher dissolved oxygen efficiency, fewer oxygen replenishment cycles, and lower energy consumption. Furthermore, the supply of gas to the aquaculture chamber 101 via the gas pipe 300 regulates the air pressure at the top of the aquaculture chamber 101. Since the water pressure inside the aquaculture chamber 101 is affected by the air pressure environment, the water pressure inside the aquaculture chamber 101 can be indirectly regulated, thereby simulating water pressure environments at different depths and meeting the pressure requirements of aquatic products growing under different environmental pressures.

[0089] It should be noted that since the closed aquaculture system can adopt all the technical solutions of the aquaculture tanks in the first aspect embodiment, it has at least all the beneficial effects brought about by the technical solutions in the first aspect embodiment. These additional beneficial effects will not be elaborated here.

[0090] It is understood that the closed aquaculture system may also include water purification components and various pipelines, etc. The water purification components may include filtration devices, biochemical devices, disinfection devices, etc. Other components and operations of the closed aquaculture system according to the embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0091] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A breeding tank, characterized in that, include: A tank body, wherein a breeding chamber is formed inside the tank body, and the tank body is provided with a water inlet pipe communicating with the breeding chamber; A feeding assembly, disposed in the tank, is used to feed the aquaculture chamber; A gas supply pipe is provided in the tank and connected to the breeding chamber for supplying gas into the breeding chamber to regulate the pressure inside the breeding chamber; An oxygen supply assembly, connected to the tank, is used to supply oxygen to the aquaculture chamber; The feeding component includes: A feeding tube is located at the top of the tank and connects to the breeding chamber. The top of the feeding tube is provided with a first valve, and the bottom of the feeding tube is provided with a second valve. The feeding tube forms a storage chamber between the first valve and the second valve. A pressure regulating mechanism is provided in the feeding cylinder to regulate the air pressure in the storage chamber; The pressure regulating mechanism includes: A first regulating pipe, one end of which is connected to the feeding tube and communicates with the storage chamber, and the other end is used to communicate with the atmosphere; the first regulating pipe is equipped with a third valve. The second regulating pipe has one end connected to the feeding tube and in communication with the storage chamber, and the other end connected to the tank and in communication with the breeding chamber. The second regulating pipe is equipped with a fourth valve. The aquaculture tank also includes a sewage discharge assembly, which includes a sewage discharge pipe located at the middle of the bottom of the tank and connected to the aquaculture chamber. The water inlet pipe is provided in two parts, which are respectively connected to the two ends of the tank along the length direction. The two water inlet pipes are located on opposite sides of the tank along the projection of the tank along the length direction. When the two water inlet pipes supply water at the same time, the water in the breeding chamber forms a swirling flow under the push of the water discharged from the two water inlet pipes. The sewage discharge assembly also includes: A sludge collection cylinder is located at the bottom of the tank body, the top of the sludge collection cylinder is connected to the breeding chamber and is equipped with a filter screen, and the sewage discharge pipe is connected to the sludge collection cylinder; A filter tube is disposed inside the breeding chamber. The top end of the filter tube extends to the top end of the breeding chamber, and the bottom end of the filter tube is connected to the sludge collection cylinder. The top end of the side wall of the filter tube is provided with a plurality of first filter holes, and the bottom end of the side wall of the filter tube is provided with a plurality of second filter holes. The aquaculture tank also includes a level gauge assembly, which comprises: Level gauge body; A first connecting pipe is connected to the top of the liquid level gauge body, and one end of the first connecting pipe is connected to the tank body and communicates with the aquaculture chamber; The second connecting pipe is connected to the bottom end of the liquid level gauge body, and the second connecting pipe is connected to the tank and communicates with the aquaculture chamber; The gas transmission pipe is connected to the first connecting pipe; The level gauge assembly further includes a sampling tube connected to the second connecting tube, and the sampling tube is provided with a fifth valve; and / or, The first connecting pipe is equipped with a pressure sensor to detect the air pressure inside the breeding chamber. The air supply pipe is equipped with a sixth valve, and the tank is equipped with a seventh valve that connects to the breeding chamber. The sixth valve and the seventh valve switch between an open state and a closed state according to the air pressure value detected by the pressure sensor.

2. The aquaculture tank according to claim 1, characterized in that, Water supply pipes are connected to both ends of the tank along its length. The water inlet pipe and the water supply pipe at the same end of the tank are located on opposite sides of the tank. When the two water supply pipes supply water at the same time, the water in the breeding chamber forms a swirling flow under the push of the water discharged from the two water supply pipes.

3. The aquaculture tank according to claim 1, characterized in that, A detachable end cap is provided on one side of the tank, and an intercepting plate is provided on the bottom surface of the breeding chamber near the end cap. An extraction port is formed between the top surface of the intercepting plate and the top surface of the breeding chamber.

4. A closed-loop aquaculture system, characterized in that, Including the aquaculture tank as described in any one of claims 1 to 3.

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