Fish and vegetable symbiotic system

Abstract

A fish and vegetable symbiotic system comprises a fish culture module, a first planting module and a second planting module, the first planting module is located above the fish culture module, the second planting module is located below the fish culture module, and waterway circulating devices are installed among the first planting module, the second planting module and the fish culture module. A sterilization device is arranged between the second planting module and the fish culture module, and a multi-stage drop water structure is arranged between the vegetable planting area and the fish culture area, so that wastewater is in full contact with air when flowing through drop water at all stages, the oxygen content of water is increased, biodegradation of harmful substances such as ammonia nitrogen is promoted, and meanwhile, the absorption efficiency of vegetables to nutrient substances is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of agriculture, and particularly relates to an aquaponics system. Background Art

[0002] In traditional aquaponics systems, the core concept is to achieve the recycling of wastewater generated from fish farming and the nutrients required for vegetable cultivation. This model aims to reduce water resource waste and simultaneously reduce the use of chemical fertilizers and pesticides, thereby promoting the development of ecological agriculture. However, existing aquaponics systems face several challenges in actual operation, which limit their efficiency and sustainability.

[0003] Firstly, the wastewater generated during fish farming contains high concentrations of ammonia nitrogen and other harmful substances. If these substances are not properly treated, they will have a negative impact on fish and aquatic ecosystems. Traditional aquaponics systems usually directly introduce the wastewater into the vegetable cultivation area, relying on the natural absorption ability of plants to purify the water quality. However, the purification efficiency of this method is often not high, especially in high-density aquaculture environments, where the absorption ability of plants for ammonia nitrogen may not be sufficient to completely treat the harmful substances in the wastewater.

[0004] Secondly, the dissolved oxygen content in the water body of the fish farming area is a key factor affecting the growth and survival of fish. Traditional aquaponics systems usually rely on natural reoxygenation processes, such as gas exchange on the water surface or oxygen released by plant roots. However, these methods may not be effective enough in providing sufficient dissolved oxygen, especially in closed or semi-closed aquaculture environments. Low dissolved oxygen levels can lead to slow fish growth, reduced immunity, and even death.

[0005] In addition, traditional aquaponics systems also have deficiencies in feed feeding and fish management. The traditional feeding method is usually to directly scatter the feed into the fish pond. This method not only wastes feed but also may cause water quality deterioration. At the same time, fish tend to become lazy and lack exercise in still water bodies, which will affect their meat quality and health status. Summary of the Invention

[0006] In order to overcome the deficiencies of the prior art, the present invention provides an aquaponics system, which improves the water quality purification efficiency, promotes plant growth, and simultaneously optimizes the fish farming environment.

[0007] To achieve the above object, the present invention adopts the following technical solutions: An aquaponics system includes a fish farming module, a first planting module, and a second planting module. The first planting module is located above the fish farming module, and the second planting module is located below the fish farming module. A water circulation device is installed between the first planting module, the second planting module, and the fish farming module, and a sterilization device is installed between the second planting module and the fish farming module.

[0008] Preferably, the fish-raising module includes a fish-raising area and a feeding assembly located above the fish-raising area. The feeding assembly includes a storage container. A quantitative hopper is installed at the discharge port of the storage container. A feeding rack is rotatably installed below the quantitative hopper. The discharge end of the feeding rack is located at a position far from the quantitative hopper. The feeding rack extends obliquely downward at a certain slope, and the feed discharged from the quantitative hopper can be dispersed and distributed into the fish-raising cabin area as the feeding rack rotates; the feeding rack is drivingly connected to a driving motor that drives the feeding rack to rotate; by driving the rotation of the rotating bracket, the feed is dispersed and put into the fish-raising area regularly and quantitatively, prompting the fish to swim and forage, which not only enhances the physique of the fish but also reduces energy consumption.

[0009] Preferably, the first planting module is a multi-layer planting area, which is communicated with the fish-raising area and allows the liquid in the first planting module to enter the fish-raising area; a plurality of overflow holes are provided at one end of the planting area, and the overflow holes increase successively from bottom to top. The sum of the liquid flow rates of all overflow holes is greater than the flow rate of the circulation water pump, and the sum of the instantaneous flow rates of some overflow holes is not greater than the flow rate of the circulation water pump; the liquid in the planting area flows down through the overflow holes into the next planting area, and the liquid in the lowermost planting area directly falls into the water storage area through the overflow holes; a multi-stage stepped structure is arranged between the first planting module and the fish-raising module, so that the wastewater can fully contact the air when flowing through each stage of the stepped structure, increasing the dissolved oxygen content in the water body, promoting the biodegradation of harmful substances such as ammonia nitrogen, and at the same time improving the absorption efficiency of vegetables for nutrients.

[0010] Preferably, the second planting module includes a plurality of planting grooves, which are arranged in multiple layers. A water storage area is provided below the planting grooves. The water storage area is communicated with the first planting module through a circulation pipeline, and a circulation water pump is arranged on the circulation pipeline; the circulation water pump and the electric control valve are in signal connection with the control device.

[0011] Preferably, a water level sensor is arranged in the water storage area. When the liquid level in the water storage area is higher than the set height, the circulation water pump operates; when the liquid level in the water storage area is lower than the set height, the circulation water pump stops operating; by setting the intermittent operation of the circulation water pump, water is discharged into the planting area regularly and quantitatively, and a natural ebb and flow is formed by using the design of multiple-stage planting buds and overflow holes, promoting water body circulation and sediment purification.

[0012] The technical effects of the present invention are as follows: 1. A multi-stage stepped structure is arranged between the vegetable planting area and the fish-raising area, so that the wastewater can fully contact the air when flowing through each stage of the stepped structure, increasing the dissolved oxygen content in the water body, promoting the biodegradation of harmful substances such as ammonia nitrogen, and at the same time improving the absorption efficiency of vegetables for nutrients.

[0013] 2. A fish feed storage hopper is arranged above the fish-raising area. Through a rotating bracket and a quantitative small hopper driven by a small motor, the feed is dispersed and put into the fish-raising area regularly and quantitatively, which not only enhances the physique of the fish but also reduces energy consumption.

[0014] 3. In the present invention, the opening and stopping of the water pump cleverly simulate the ebb and flow phenomena in nature. When the water pump works, the water flow is pumped from the fish-raising area to the multi-stage planting troughs in the vegetable planting area, forming a flood tide. This process not only provides sufficient water and dissolved oxygen for the plants but also promotes the uniform distribution of nutrients in the water body, which is beneficial to the growth of the plants.

[0015] 4. In the actual use process of the present invention, a large-area planting area is required to absorb ammonia nitrogen in the wastewater. The multi-layer planting trough can effectively increase the planting area and save land. The water drop formed by the multi-layer planting can better increase the oxygen content in the water and is more conducive to the growth of fish. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of the present invention.

[0017] Figure 2 It is a schematic structural diagram of the feeding component.

[0018] Reference numerals in the drawings: 1, fish-raising module; 11, fish-raising area; 12, storage container; 13, quantitative small hopper; 14, feeding rack; 2, first planting module; 3, second planting module; 31, water storage area; 32, water level sensor; 4, water circulation device; 41, circulation pipeline; 42, filter; 43, sterilization device. DETAILED DESCRIPTION OF THE INVENTION

[0019] The present invention will be further described below through specific embodiments and the drawings.

[0020] As Figures 1 - 2 shown, a fish-vegetable symbiosis system includes a fish-raising module 1, a first planting module 2, and a second planting module 3. The first planting module 2 is located above the fish-raising module 1, the second planting module 3 is located below the fish-raising module 1, and a water circulation device 4 is installed between the first planting module 2, the second planting module 3, and the fish-raising module 1. The water circulation device 4 includes a circulation pipeline 41, and a filter 42 is installed in the circulation pipeline 41 as needed. A sterilization device 43 is installed between the second planting module 3 and the fish-raising module 1. The sterilization device 43 in the present invention can be a sterilization tank, ozone, or ultraviolet light for disinfection and sterilization. The present invention is not limited thereto.

[0021] In the present invention, the fish-raising module 1 includes a fish-raising area 11, which can be a fish-raising cabinet or a fishpond, and ornamental fish or edible freshwater fish such as crucian carp, grass carp, tilapia, etc. are cultured therein, and a feeding component 5 located above the fish-raising area 11. The feeding component includes a stock container 12, a quantitative hopper 13 is installed at the discharge port of the stock container 12, a feeding rack 14 is rotatably installed below the quantitative hopper 13, the discharge end of the feeding rack 14 is located at a position far from the quantitative hopper 13, and the feeding rack 14 extends obliquely downward at a certain slope, and the feed discharged from the quantitative hopper 13 can be dispersed and distributed into the fish-raising area 11 as the feeding rack 14 rotates; the feeding rack 14 is drivingly connected to a driving motor (not shown in the figure) that drives the feeding rack 14 to rotate; by driving the rotation of the rotating bracket, the feed is dispersed and put into the fish-raising area 11 at regular times and in fixed quantities, prompting the fish to swim and forage, which not only enhances the physique of the fish but also reduces energy consumption.

[0022] In the present invention, the first planting module 2 is a multi-layer planting area, the first planting module 2 is communicated with the fish-raising area 11, and the liquid in the first planting module 2 can be allowed to enter the fish-raising area 11; a plurality of overflow holes are provided at one end of the planting trough, the overflow holes increase successively from bottom to top, the sum of the liquid flow rates of all the overflow holes is greater than the flow rate of the circulation water pump, and the sum of the instantaneous flow rates of some of the overflow holes is not greater than the flow rate of the circulation water pump; the liquid in the planting trough flows down through the overflow holes into the next planting trough, and the liquid in the planting trough at the lowermost layer directly falls into the water storage area 31 through the overflow holes; a multi-stage drop structure is arranged between the first planting module 2 and the fish-raising module, so that the wastewater can fully contact the air when flowing through each stage of the drop, increasing the dissolved oxygen content in the water body, promoting the biodegradation of harmful substances such as ammonia nitrogen, and at the same time improving the absorption efficiency of vegetables for nutrients.

[0023] In the present invention, the second planting module 3 includes a plurality of planting troughs, the planting troughs are provided with multiple layers, a water storage area 31 is provided below the planting troughs, the water storage area 31 is communicated with the first planting module 2 through a circulation pipeline 41, and a circulation water pump is provided on the circulation pipeline 41; the circulation water pump, the electric control valve and the control device are signal-connected.

[0024] In the present invention, a water level sensor 32 is provided in the water storage area 31. When the liquid level in the water storage area 31 is higher than the set height, the circulation water pump operates; when the liquid level in the water storage area 31 is lower than the set height, the circulation water pump stops operating; by setting the intermittent operation of the circulation water pump, water is discharged into the planting area at regular times and in fixed quantities, and a natural ebb and flow is formed by using the design of multiple-stage planting buds and overflow holes, promoting water body circulation and sediment purification.

[0025] The specific implementation process of the present invention is as follows: During the breeding process, the motor drives the feeding rack 14 to rotate. When rotating, the feed in the metering hopper 13 is dispersed in the fish farming area 11. Because the fish are hungry, they follow the feed, achieving the purpose of making the fish swim and saving energy. When necessary, the rotational speed of the motor is set as required to control the speed of feed dispersion of the feeding rack 14 to better meet the breeding requirements. In the prior art, the water flow is achieved by increasing the power of the water pump, resulting in a large overall energy consumption. However, in the present invention, the characteristics of using feed to drive fish swimming are utilized to realize the whole water flow cycle, achieving energy conservation.

[0026] When the water level in the water storage area 31 exceeds the sensing threshold of the water level sensor 32, the circulating water pump is started, and the wastewater that has been precipitated and absorbed in the water storage area 31 is pumped into the soil for growing vegetables and flowers in the upper layer with sufficient sunlight. The water will fall into the breeding tank. At the same time, the water in the breeding tank is controlled by the solenoid valve to be periodically discharged downward into the sterilization tank, and after sterilization, it falls into the planting trough. Since the flow rate of the overflow hole below the planting trough is less than the falling speed of the water, the liquid level of the planting trough will gradually increase at this time. When the liquid level reaches the upper overflow hole, the liquid discharge speed will be greater than the liquid inlet speed, and the water in the overflow hole will flow down along the inclined surface of the outer wall of the planting trough into the second germinating trough below. This process is repeated, and finally, all the water falls into the water storage pool. Due to the time difference in the step-by-step water drop and the solenoid valve being periodically opened, the rising speed of the water level in the water storage pool is limited at this time. When the liquid level in the water storage pool is lower than the sensing threshold of the water level sensor 32, the circulating water pump stops running. When the water level in the water storage area 31 exceeds the sensing threshold of the water level sensor 32 again, the circulating water pump is started again. In this way, it operates in a cyclic intermittent manner, forming a water level pattern of ebb and flow. The multi-step water drop not only facilitates reoxygenation (the oxygen content in the water) more but also increases the planting area, which is beneficial for absorbing ammonia nitrogen organic substances in the water and increasing the income of plants and vegetables.

[0027] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. The present invention can be used in similar products or methods. Any changes or modifications made by those skilled in the art within the scope of the present invention are covered by the patent scope of the present invention.

Claims

1. An aquaponics system, characterized in that: It includes a fish - raising module (1), a first planting module (2) and a second planting module (3). The first planting module (2) is located above the fish - raising module (1), and the second planting module (3) is located below the fish - raising module (1). A water - circuit circulation device (4) is installed between the first planting module (2), the second planting module (3) and the fish - raising module (1), and a sterilization device (43) for circulating and sterilizing water is provided between the second planting module (3) and the fish - raising module (1).

2. The aquaponics system according to claim 1, wherein: The fish - raising module (1) includes a fish - raising area (11) and a feeding assembly located above the fish - raising area (11); The feeding assembly includes a storage container (12). A quantitative hopper (13) is installed at the discharge port of the storage container (12). A feeding rack (14) is rotatably installed below the quantitative hopper (13). The discharge end of the feeding rack (14) is located at a position far from the quantitative hopper (13). The feeding rack (14) extends obliquely downward at a certain slope, and can disperse and distribute the feed discharged from the quantitative hopper into the fish - raising area (11) as the feeding rack (14) rotates; The feeding rack (14) is drivingly connected to a driving motor that drives the feeding rack (14) to rotate. By driving the rotation of the feeding rack, the feed is dispersed and put into the fish - raising area (11) regularly and quantitatively, prompting the fish to swim and forage.

3. The aquaponics system according to claim 1, wherein: The first planting module (2) is a multi - layer planting area; The first planting module (2) is communicated with the fish - raising area (11), and the liquid in the first planting module (2) is allowed to enter the fish - raising area (11); One end of the planting area is provided with a plurality of overflow holes, and the overflow holes increase gradually from bottom to top. The sum of the liquid flow rates of all overflow holes is greater than the flow rate of the circulation water pump, and the sum of the instantaneous flow rates of some overflow holes is not greater than the flow rate of the circulation water pump; The liquid in the planting area flows down to the next planting area through the overflow holes, and the liquid in the lowermost planting area directly falls into the water storage area (31) through the overflow holes; A multi - stage drop - water structure is arranged between the first planting module (2) and the fish - raising module (1), so that the waste water can fully contact the air when flowing through each stage of the drop - water, increasing the dissolved oxygen content in the water body, promoting the biodegradation of harmful substances such as ammonia nitrogen, and at the same time improving the absorption efficiency of vegetables for nutrients.

4. The aquaponics system according to claim 1, wherein: The second planting module (3) includes a number of planting troughs. The planting troughs are provided with multiple layers. A water storage area (31) is provided below the planting troughs. The water storage area (31) is communicated with the first planting module (2) through a circulation pipeline (41). A circulation water pump is provided on the circulation pipeline (41). The circulation water pump, the electric control valve are in signal connection with the control device.

5. The aquaponics system according to claim 4, wherein: A water level sensor (32) is provided in the water storage area (31). When the liquid level in the water storage area (31) is higher than the set height, the circulation water pump operates; when the liquid level in the water storage area (31) is lower than the set height, the circulation water pump stops operating. By setting the intermittent operation of the circulation water pump, water is discharged into the planting area regularly and quantitatively, and natural ebb and flow tides are formed by using the multi-stage planting bud grooves and overflow holes, promoting water body circulation and sediment purification.

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