Safe and stable circulating type fish and vegetable symbiotic system

Abstract

The utility model relates to a safe and stable circulating type fish and vegetable symbiotic system which comprises a fish pond, a planting box and a water planting box, the pond bottom of the fish pond is connected to the planting box through a fish pond water outlet pipe, and the planting box is filled with a first-level filtering nitration material layer. The planting box is connected to a water culture box filled with a secondary filtering nitration material layer through a planting water outlet pipe, and the water culture box is connected with the fish returning pond through a water culture water outlet pipe and a water pump; a water level control siphon assembly located above the fishpond is arranged on the fishpond water outlet pipe. According to the fish and vegetable symbiotic system, residual feed and excrement are removed in a bottom filtering mode, a water level control siphon assembly is used for water circulation, the system has the advantages that bottom dirt is efficiently removed, meanwhile, water circulation is stable and safe, the fish pond is a pond body free of opening, the technology is simple, implementation is convenient, and good popularization performance is achieved.

Description

Technical Field

[0001] This utility model relates to a safe and stable circulating aquaponics system, belonging to the field of agricultural technology. Background Technology

[0002] Aquaponics is a complex farming system in which animals, microorganisms, and plants coexist symbiotically to achieve ecological balance. In an aquaponics system, nutrient-rich wastewater from aquaculture passes through a substrate biochemical bed, where bacteria decompose ammonia nitrogen into nitrite, which is then further decomposed into nitrate by nitrifying bacteria. The nitrate can be directly absorbed by the vegetables as a nutrient, thus effectively purifying the water and recycling it, achieving an ecological balance where fish are raised without water changes and vegetables are grown without fertilizer.

[0003] In the construction of aquaponics systems, the filtration and circulation modes are quite diverse. Generally, wastewater from the fishpond is introduced into the vegetable growing area through siphoning, and then the treated water is pumped back to the fishpond by a water pump. The main filtration methods for fishponds include top filtration, bottom filtration, side filtration, and canister filters. Among them, bottom filtration is more efficient and widely used, but there are still significant safety and stability issues during operation. In the event of a power outage to the water pump, the water in the pond can easily be drained, and the water outside the pond may overflow due to the limited volume of the storage tank. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the technical problem to be solved by this utility model is to provide a safe and stable circulating aquaponics system.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is: a safe and stable circulating aquaponics system, including a fish pond, a planting box, and a hydroponic box. The bottom of the fish pond is connected to the planting box, which is filled with a primary filtration nitrification material layer, via a fish pond outlet pipe. The planting box is connected to the hydroponic box, which is filled with a secondary filtration nitrification material layer, via a planting outlet pipe. The hydroponic box is connected back to the fish pond via a hydroponic outlet pipe and a water pump. A water level control siphon assembly is installed on the fish pond outlet pipe above the fish pond.

[0006] Preferably, one end of the fishpond outlet pipe extends into the bottom of the fishpond, and the other end extends from the bottom up to the top of the fishpond and then from the top down to connect with the planting box.

[0007] Preferably, the water level control siphon assembly is disposed between the upper extension of the fish pond outlet pipe on the fish pond side and the lower extension of the fish pond outlet pipe on the planting box side.

[0008] Preferably, the water level control siphon assembly comprises an N-shaped pipe, a T-shaped pipe and an L-shaped pipe, the bottom end of the N-shaped pipe is connected with a fishpond water outlet pipe on the side of the fishpond, the top end of the N-shaped pipe is connected with the T-shaped pipe, the top end of the T-shaped pipe is connected with the L-shaped pipe above the N-shaped pipe, the side end of the T-shaped pipe is connected with a fishpond water outlet pipe on the side of the planting box, the bottom end of the L-shaped pipe extends into the fishpond to form a broken rainbow, and the side end of the L-shaped pipe is connected with a water adding pipe at the position connected with the T-shaped pipe, and a detachable pipe cover is arranged on the top of the water adding pipe.

[0009] Preferably, a switch valve is arranged on the fishpond water outlet pipe on the side of the planting box, and a sewage pipe is arranged at the lowest position of the pipe body of the N-shaped pipe, and a switch valve is arranged on the sewage pipe.

[0010] Preferably, a plurality of water outlet branch pipes connected with the fishpond water outlet pipe on the side of the planting box are arranged on the top of the planting box, the plurality of water outlet branch pipes are arranged along the width direction of the planting box, the length direction of the water outlet branch pipes is the length direction of the planting box, and a plurality of irrigation openings are uniformly arranged on the water outlet branch pipes along the length direction of the water outlet branch pipes.

[0011] Preferably, the planting water outlet pipe comprises a plurality of overflow openings arranged on the side of the planting box, the plurality of overflow openings are arranged on the lower side of the first filtering and nitrifying material layer, and the plurality of overflow openings are arranged along the length direction of the planting box, a filter screen is arranged on each of the overflow openings, and an overflow branch pipe is connected to each of the overflow openings, and the plurality of overflow branch pipes are connected to the planting water outlet pipe.

[0012] Preferably, the planting water outlet pipe is connected to one end of the water culture box, the water culture water outlet pipe is connected to the other end of the water culture box opposite to the planting water outlet pipe, and the second filtering and nitrifying material layer is arranged between the planting water outlet pipe and the water culture water outlet pipe below the water culture planting hole of the water culture box.

[0013] Preferably, the first filtering and nitrifying material layer comprises, from bottom to top, an oyster shell layer, a volcanic rock layer and a ceramic particle layer.

[0014] Preferably, the second filtering and nitrifying material layer comprises one or more of a brush layer, a gravel layer and a fine sand layer.

[0015] Compared with the prior art, the water level control siphon assembly has the following beneficial effects:

[0016] 1. The water circulation is realized through the bottom filtration siphon, the sewage effect is good, and the pipeline is not easy to be blocked.

[0017] 2, the utility model discloses a water level control siphon assembly, by setting siphon start and stop water level height, ensure that when power off, the pool has higher water stop level, will not be drained, and the water quantity that passes through siphon during the outflow can be all stored to the water culture box, will not overflow the system, after power on, water level rises to siphon start line, then restore siphon, system continues to run, can effectively improve the stability and security of fish -vegetable symbiosis system.

[0018] The utility model will be described in further detail below in connection with the drawings and specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the structure schematic diagram of the embodiment of the utility model.

[0020] Figure 2 It is the working state schematic of water level control siphon assembly first start Figure 1 .

[0021] Figure 3 It is the working state schematic of water level control siphon assembly first start Figure 2 .

[0022] Figure 4 It is the working state schematic of water level control siphon assembly power failure Figure 1 .

[0023] Figure 2 It is the working state schematic of water level control siphon assembly power failure Figure 6 .

[0024] Figure 1 It is the working state schematic of water level control siphon assembly power on Figure 7 .

[0025] Figure 2 It is the working state schematic of water level control siphon assembly power on Figure 8 .

[0026] Figure 3 It is the working state schematic of water level control siphon assembly power on Figures 1-8 .

[0027] In the drawing: fish pond 1, planting box 2, water culture box 3, fish pond water outlet pipe 4, primary filtration nitrification material layer 5, planting hole 6, secondary filtration nitrification material layer 7, overflow 8, water culture water outlet pipe 9, water pump 10, water level control siphon assembly 11, N-shaped pipe 12, T-shaped pipe 13, L-shaped pipe 14, start water pipe 15, pipe cover 16, switch valve 17, blow-off pipe 18, water outlet branch pipe 19, irrigation communication 20, planting water outlet pipe 21. DETAILED DESCRIPTION

[0028] The utility model discloses further make illustration below combining with the drawing and example.

[0029] It should be noted that the following detailed description is exemplary and is intended to provide further description of the present application. Unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the application pertains.

[0030] It should be noted that the terminology used herein is for purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, elements, components, and / or groups thereof, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof.

[0031] As shown in Figure 2 The embodiment provides a safe and stable circulating fish and vegetable symbiotic system, which comprises a fish tank 1, a planting box 2 and a water culture box 3, the bottom of the fish tank is connected to the planting box which is internally filled with a first filtering nitrification material layer 5 through a fish tank water outlet pipe 4, the planting box is connected to the water culture box which is internally filled with a second filtering nitrification material layer 7 through a planting water outlet pipe 21, and the water culture box is connected back to the fish tank through a water culture water outlet pipe 9 and a water pump 10, so as to facilitate the circulation of water back to the fish tank. The water outlet of the water culture water outlet pipe is 3-5 cm higher than the water surface of the fish tank. A water level control siphon assembly 11 is arranged on the fish tank water outlet pipe and located above the fish tank, and the water level control siphon assembly is used for guiding the fish tank wastewater into the planting box through the fish tank water outlet pipe.

[0032] In the embodiment of the utility model, the fish tank is one of canvas pool, cement pool, engineering plastic pool or tempered glass pool, the fish tank is 1 m high and 1-4 m in diameter.

[0033] In the embodiment of the utility model, the planting box is located below the water level control siphon assembly and has a size of 200*100*30 cm. The water culture box is located below the planting box and has a size of 200*50*30 cm. The water level height in the water culture box is 12 cm. The water pump has a power of 25 W, a lift of 1.8 m and a flow of 1500 L / h.

[0034] In the embodiment of the utility model, one end of the fish tank water outlet pipe extends into the inside bottom of the fish tank, and the end part serves as a water outlet port. The other end extends out of the top of the fish tank from bottom to top and then extends to the planting box from top to bottom.

[0035] In the embodiment of the utility model, the water culture box is located below the planting box.

[0036] In the embodiment of the utility model, the water level control siphon assembly is arranged between the upper extension section of the fish pool outlet pipe on the fish pool side and the lower extension section of the fish pool outlet pipe on the planting box side.

[0037] In the embodiment of the utility model, the water level control siphon assembly comprises N-shaped pipe 12, T-shaped pipe 13 and L-shaped pipe 14, the bottom end of the N-shaped pipe is connected with the fish pool outlet pipe on the fish pool side, and the top end is connected with the T-shaped pipe; the top end of the T-shaped pipe is connected with the L-shaped pipe above the N-shaped pipe, and the side end is connected with the fish pool outlet pipe on the planting box side; the bottom end of the L-shaped pipe extends into the fish pool to form a broken siphon, and the side end is connected with the water adding pipe 15 at the position connected with the T-shaped pipe; the top end of the water adding pipe is provided with a detachable pipe cover 16.

[0038] In the embodiment of the utility model, the horizontal line corresponding to the position of the broken siphon is the siphon stop water level line L1, the upper side of the siphon stop water level line L1 is the siphon start water level line L2, and the water level height difference between L1 and L2 is 3-5 cm.

[0039] In the embodiment of the utility model, the fish pool outlet pipe on the planting box side is provided with a switch valve 17, the lowest part of the pipe body of the N-shaped pipe is provided with a sewage pipe 18, and the sewage pipe is provided with a switch valve.

[0040] In the embodiment of the utility model, the water level control siphon assembly is hung on the edge of the pool opening at the top of the fish pool by the shape of the N-shaped pipe. The water level control siphon assembly is in the form of external hanging, avoids opening holes and connecting pipes on the fish pool wall, has simple process, low cost, and is detachable, convenient to implement.

[0041] In the embodiment of the utility model, the top opening of the planting box is provided with a plurality of water outlet branch pipes 19 connected with the fish pool outlet pipe on the planting box side, the plurality of water outlet branch pipes are arranged along the width direction of the planting box, the length direction of the water outlet branch pipe is the length direction of the planting box, and a plurality of irrigation openings 20 are uniformly arranged on the water outlet branch pipe along the length direction.

[0042] In the embodiment of the utility model, the planting outlet pipe comprises a plurality of overflow openings 8 located at the side of the planting box, the plurality of overflow openings are located at the middle and lower side of the first filtering nitrification material layer, and the plurality of overflow openings are distributed along the length direction of the planting box; the overflow opening is provided with a filter screen, the filter hole diameter is less than 1 cm, and the overflow opening is connected with an overflow branch pipe; and the plurality of overflow branch pipes are connected to the planting outlet pipe.

[0043] In the embodiment of the utility model, the overflow opening has four, and the filtered and nitrified tail water is collected and flows into the lower water culture box through the four overflow openings.

[0044] Four overflow ports are arranged side by side on the same side of the planting box, with a height of 15 cm and an interval of 40 cm, and are connected through pipes to guide water flow downward.

[0045] In the embodiment of the utility model, the planting outlet pipe is connected to one end of the water culture box, the water culture outlet pipe is connected to the other opposite end of the water culture box, and the secondary filtering nitrification material layer is arranged between the planting outlet pipe and the water culture outlet pipe below the water culture planting hole of the water culture box.

[0046] The water culture planting hole 6 of the water culture box is used for placing the planting blue.

[0047] In the embodiment of the utility model, the primary filtering nitrification material layer is composed of oyster shell layer, 25 mm particle size volcanic rock layer and 30 mm particle size ceramsite layer arranged from bottom to top in sequence, with a filling ratio of 2:1:6 and a filling rate of 90%. The secondary filtering nitrification material layer is composed of one or more of brush layer, 10 mm particle size gravel layer and fine sand layer, with a filling rate of 30%.

[0048] In the embodiment of the utility model, the working principle of the safe and stable circulating fish and vegetable symbiotic system is as follows:

[0049] The utility model discloses a water level control siphon assembly, which sets the siphon starting and stopping water level height, guarantees a high water stop level in the pool when power off, and the water flow during siphon outflow can be all stored in the water culture box without overflowing the system. After power on, the water level rises to the siphon starting line, then the siphon is restored, and the system continues to run, which can effectively improve the stability and safety of the fish and vegetable symbiotic system.

[0050] Specific implementation process:

[0051] The safe and stable circulating fish and vegetable symbiotic system comprises a fish pool, a water level control siphon assembly, a planting box and a water culture box, the fish pool is connected with one end of a fish pool water outlet pipe through a bottom water outlet, the other end of the fish pool water outlet pipe is connected with the water level control siphon assembly above the fish pool, the water level control siphon assembly is used for inputting fish pool wastewater into the planting box, the planting box is filled with a first filtering nitrification material layer, and tail water filtered and nitrified is collected and flows into one side of the water culture box below through four overflow outlets, the water culture box is provided with a second filtering nitrification material layer at the bottom, and the other opposite end side of the water culture box is connected with a water pump and a water culture water outlet pipe, so that water is circulated and flows back to the fish pool, the fish pool is a canvas pool with a size of 1 m in height and 2 m in diameter, a water level difference of the water level control siphon assembly is 5 cm when the water level control siphon assembly is started and stopped, the planting box is located below the water level control siphon assembly and has a size of 200x100x30 cm, the first filtering nitrification material layer in the planting box comprises oyster shells, 25 mm volcanic stones and 30 mm ceramsite from bottom to top at a filling ratio of 2:1:6 and a filling rate of 90%, the water culture box is located below the planting box and has a size of 200x50x30 cm, the second filtering nitrification material layer in the water culture box comprises one or more of a brush, 10 mm broken stones and fine sand at a filling rate of 30%, a water culture floating plate of the water culture box has a size of 150x50x2 cm, planting holes on the water culture floating plate have a size of 2.5 cm in diameter, a water level of the water culture box is 12 cm, and the water pump has a power of 25 W, a lift of 1.8 m and a flow of 1500 L / h.

[0052] As shown in Figure 3 the first start of the water level control siphon assembly, the switch valves of the fish pool water outlet pipe on the side of the planting box and the sewage pipe are closed, water is added to the fish pool, and the fish pool water level is added to the siphon starting water level line L2 by pouring water through the starting water adding pipe, and it is ensured that the N-shaped pipe is filled with water, the planting box water level is added to the overflow port, and the water culture box water level is added to a height of 12 cm.

[0053] As shown in Figures 4-5 , then the pipe cover of the starting water adding pipe is covered, the switch valves of the fish pool water outlet pipe on the side of the planting box are opened, and the water pump and the water level control siphon assembly are started, fish feces, leftover food and sewage in the fish pool are siphoned and irrigated to the planting box, are decomposed by bacteria in the first filtering nitrification material layer, are absorbed and utilized by the vegetables, part of the small particles that are not completely decomposed flow to the water culture box through the overflow port, are further filtered, settled and decomposed by the second filtering nitrification material, are secondarily absorbed and utilized by the vegetables in the water culture box, and clean water bodies return to the fish pool through the water pump for recycling.

[0054] As shown in Figures 6-8As shown, when power off, the water level in the fish tank drops and is controlled by the siphon stop water level line L1, the broken siphon inhales air until the last N-shaped tube, T-shaped and L-shaped tubes are empty, the siphon stops, the water level drops by 5 cm, the total water volume is 157 L, the siphon pipeline irrigates the water to the planting box, and the water is introduced into the water culture box through the overflow port, the water level in the water culture box rises by 15.7 cm, the total water volume is 277 L, and the water level is 27.7 cm (lower than 30 cm), which can avoid overflow of the breeding water.

[0055] As shown in Figure 6 , when power on, the water pump pumps the water in the water culture box back to the fish tank, and the water level in the fish tank gradually rises. When the water level rises above the lowest water level of the T-shaped tube, the overflow into the fish tank water outlet pipe on the side of the planting box begins Figure 7 . When the water level in the fish tank rises above the siphon start water level line L2, the siphon starts to start, the water level in the L-shaped tube slowly rises Figure 8 , and finally reaches full siphon ​ , and the water circulation continues.

[0056] California bass was selected as the experimental breeding object.

[0057] Breeding water body: 3140 L.

[0058] Breeding time: April to October 2023.

[0059] Fry condition: 85 pieces of fish were released, with an average weight of 0.9 g and a body length of 5-6 cm.

[0060] Feeding condition: daily feeding rate 4%, daily feeding meal number: 4-6 months, daily feeding 3 times, time respectively at 8:30, 14:30 and 8:30; 7-10 months, daily feeding 2 times, time respectively at 8:30 and 16:30.

[0061] Table 1 Experimental data recording table:

[0062]

[0063] Note: Evaluation index of breeding water body 3140 L:

[0064] Breeding density (kg / m 3 ) = total weight of adult fish / volume of breeding water; survival rate (%) = number of adult fish / number of fry released; specific weight gain rate (g / d*L) = total weight of adult fish / (volume of breeding water * breeding time)

[0065] Experimental results:

[0066] According to the experimental data of bass breeding, after 7 months of breeding period, the survival rate of California bass was 92.9%, and the breeding density could reach 9.36 kg / m 3The results showed that the water circulation of the fish-vegetable symbiosis system was stable, the water treatment system was designed reasonably, and the micropterus salmoides was well adapted to the fish-vegetable symbiosis system.

[0067] The above is only the preferred embodiment of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technology content to equivalent embodiments with equivalent changes. However, any simple modification, equivalent change and modification of the above embodiments without departing from the technical solution of the present application, according to the technical essence of the present application, still belongs to the protection scope of the technical solution of the present application.

Claims

1. A safe and stable recirculating aquaponics system, characterized by: The application relates to a fish tank, a planting box and a water culture box, wherein the bottom of the fish tank is connected to the planting box filled with a first filtering nitrification material layer through a fish tank water outlet pipe, the planting box is connected to the water culture box filled with a second filtering nitrification material layer through a planting water outlet pipe, and the water culture box is connected back to the fish tank through a water culture water outlet pipe and a water pump; wherein a water level control siphon assembly is arranged on the fish tank water outlet pipe above the fish tank; the water level control siphon assembly comprises an N-shaped pipe, a T-shaped pipe and an L-shaped pipe; the bottom end of the N-shaped pipe is connected to the fish tank water outlet pipe on the side of the fish tank, and the top end is connected to the T-shaped pipe; the top end of the T-shaped pipe is connected to the L-shaped pipe above the N-shaped pipe, and the side end is connected to the fish tank water outlet pipe on the side of the planting box; the bottom end of the L-shaped pipe extends into the fish tank to form a broken siphon, and the side end is connected to a water adding pipe at the position connected to the T-shaped pipe; and a detachable pipe cover is arranged on the top pipe opening of the water adding pipe.

2. The safe and stable recirculating fish in biogas system according to claim 1, characterized in that: One end of the fish tank water outlet pipe extends into the bottom of the fish tank, and the other end extends out of the top of the fish tank from bottom to top and then extends to the planting box from top to bottom.

3. The safe and stable recirculating fish in biogas system according to claim 2, characterized in that: The water level control siphon assembly is arranged on the fish tank water outlet pipe between the extending section on the side of the fish tank and the lower extending section on the side of the planting box.

4. The safe and stable recirculating fish-tank-symbiosis system according to claim 1, characterized in that: A switch valve is arranged on the fish tank water outlet pipe on the side of the planting box, and a sewage pipe is arranged at the lowest position of the pipe body of the N-shaped pipe.

5. The safe and stable recirculating fish-tank-symbiosis system according to claim 1, characterized in that: A plurality of water outlet branch pipes are arranged on the top opening of the planting box and connected to the fish tank water outlet pipe on the side of the planting box; the plurality of water outlet branch pipes are arranged along the width direction of the planting box, the length direction of the water outlet branch pipes is the length direction of the planting box, and a plurality of irrigation openings are arranged along the length direction of the water outlet branch pipes.

6. The safe and stable recirculating fish-tank-symbiosis system according to claim 1, characterized in that: The planting water outlet pipe comprises a plurality of overflow openings arranged on the side of the planting box; the plurality of overflow openings are arranged on the lower side of the first filtering nitrification material layer; the plurality of overflow openings are arranged along the length direction of the planting box; a filter screen is arranged on each of the overflow openings; and an overflow branch pipe is connected to each of the overflow openings.

7. The safe and stable recirculating fish-tank-symbiosis system according to claim 1, characterized in that: The planting water outlet pipe is connected to one end of the water culture box, the water culture water outlet pipe is connected to the other end of the water culture box, and the second filtering nitrification material layer is arranged between the planting water outlet pipe and the water culture water outlet pipe below the water culture planting hole of the water culture box.

8. The safe and stable recirculating fish tank aquaponics system of claim 1, wherein: The first filtering nitrification material layer comprises an oyster shell layer, a volcanic rock layer and a ceramic ball layer arranged from bottom to top.

9. The safe and stable recirculating fish tank aquaponics system of claim 1, wherein: The second filtering nitrification material layer comprises one or more of a brush layer, a gravel layer and a fine sand layer.

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