Fish and vegetable symbiotic system

Abstract

The utility model relates to a fish and vegetable symbiotic system which comprises a planting unit and an aquatic product unit. The planting unit comprises a planting frame and a water pool, a planting groove is formed in the planting frame, the aquatic product unit comprises a breeding barrel, and the breeding barrel is arranged below the planting groove; the water treatment unit is connected between the water pool and the breeding barrel through a pipeline. According to the fish and vegetable symbiotic system, the planting unit can fully perform photosynthesis, the planting unit is used for shading the culture barrel of the aquatic product unit, generation of algae in the culture water body is avoided, and the space utilization rate in the sunlight greenhouse is effectively improved.

Description

Technical Field

[0001] The present application relates to the field of agricultural production technology, and in particular, to a fish-vegetable symbiotic system. Background Art

[0002] Fish-vegetable symbiosis combines recirculating aquaculture with soilless cultivation technology to reduce the impact of climate on agriculture and achieve efficient use of water resources. Its production process is green, energy-saving, environmentally friendly, and does not cause environmental pollution. Fish-vegetable symbiosis provides a model and opportunity for the integration and upgrading of fisheries and planting industries, which can effectively improve the ecological environment and achieve an ecologically green and sustainable agricultural development method.

[0003] The fish-vegetable symbiotic system is mainly built in solar greenhouses and multi-span greenhouses, both of which have their own advantages and disadvantages. Multi-span greenhouses have the advantages of high land utilization, good insulation effect, and large overall space, which are suitable for factory-based and large-scale production; but for the high operating costs of additional heating in the northern winter, solar greenhouses can effectively use limited sunlight resources for insulation and heat storage, making them widely used. Different aquatic species in the fish-vegetable symbiotic system have different temperature requirements. In the northern fish-vegetable symbiotic greenhouse, the overall space utilization rate is not high.

[0004] In order to prevent the formation of algae in the water, the cultivation barrels in the existing aquaponics solar greenhouse should avoid direct sunlight as much as possible, while vegetables need to accumulate substances through photosynthesis during their growth and development. The output of aquatic products and vegetables is a direct reflection of the economic benefits of the aquaponics system, so how to improve the space utilization in the aquaponics solar greenhouse is crucial. Utility Model Content

[0005] The purpose of the present application is to provide a fish-vegetable symbiotic system that can effectively take into account two factors: avoiding the production of algae in the breeding barrels in the fish-vegetable symbiotic solar greenhouse and ensuring that the vegetables receive effective light, thereby improving the space utilization rate of the solar greenhouse.

[0006] In order to achieve the above-mentioned object, the utility model provides a fish-vegetable symbiosis system, comprising: a planting unit and an aquatic unit;

[0007] The planting unit includes a planting frame and a pool, the planting frame is equipped with a planting trough, and the aquatic unit includes a breeding barrel, which is arranged below the planting trough;

[0008] A water treatment unit is connected between the water pool and the breeding tank through a pipeline.

[0009] In an optional embodiment, the planting rack includes a stepped frame, the planting trough includes a top planting trough located at the top of the stepped frame, and the breeding barrel is arranged below the top planting trough.

[0010] In an alternative embodiment, the planting trough further includes intermediate planting troughs and bottom planting troughs at different heights of the stepped frame, and the water tank is arranged below the intermediate planting troughs and the bottom planting troughs.

[0011] In an alternative embodiment, the water tank includes a sump and a clean water tank. The sump is arranged below the intermediate planting troughs, and the clean water tank is arranged below the bottom planting troughs.

[0012] In an alternative embodiment, a reflux plate is arranged below the planting trough, and the reflux plate is obliquely installed on the planting rack.

[0013] In an alternative embodiment, the top of the reflux plate is connected to the bottom of the top planting trough and shields the breeding barrel. The bottom of the reflux plate extends obliquely downward to the upper part of the sump and includes a bottom edge with an arc structure.

[0014] In an alternative embodiment, a water supply unit is arranged between the sump and the planting trough. The water supply unit includes a water supply pump, a main water supply pipe and branch water supply pipes. The water supply pump is installed in the sump, the main water supply pipe is connected to the water supply pump, and the branch water supply pipes are connected to the main water supply pipe.

[0015] In an alternative embodiment, there are multiple branch water supply pipes, which correspond to the planting troughs one by one. A control valve is installed on each branch water supply pipe, and an end pipe section is arranged on the downstream pipeline of the control valve. The end pipe section includes a horizontal pipe section that bends into the upper part of the planting trough from the side.

[0016] In an alternative embodiment, a water return unit is arranged between the planting trough and the clean water tank. The water return unit includes an overflow pipe and a main water return pipe. The overflow pipe is connected to the side wall of each planting trough. A control valve is installed on each overflow pipe and is respectively connected to the main water return pipe at the bottom. The end water return port of the main water return pipe is arranged above the clean water tank.

[0017] In an alternative embodiment, the water treatment unit includes a microfiltration module, a nitrification module, a pH adjustment module and an oxygenation module. The breeding barrel and the clean water tank are respectively connected to the microfiltration module through pipelines. The nitrification module is connected to the sump through a pipeline. The pH adjustment module and the oxygenation module are connected through a pipeline. The oxygenation module is connected to the breeding barrel through a pipeline.

[0018] The aquaponics system in the present utility model enables the planting unit to fully perform photosynthesis, uses the planting unit to shade the aquaculture barrels in the aquaculture unit, avoids the generation of algae in the aquaculture water body, and effectively improves the space utilization rate inside the solar greenhouse.

[0019] In a further technical solution, considering the humidity inside the greenhouse and the daily evaporation of the aquaculture barrels, a confluence plate that plays a role in shading and condensate recovery is provided at the bottom of the planting unit, so that the evaporated water flows into the sump.

[0020] Other features and advantages of this application will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of this application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can also be obtained based on these drawings without creative efforts.

[0022] Figure 1 It is a schematic structural diagram of the aquaponics system in this application;

[0023] Figure 2 It is a schematic structural diagram of the planting unit in this application;

[0024] Figure 3 It is a schematic structural diagram of the stepped frame in this application;

[0025] Figure 4 It is a schematic side view structural diagram of the aquaponics system in this application;

[0026] Figure 5 It is a frame flow chart between each unit of the aquaponics system in this application.

[0027] ICON:

[0028] 1 - Planting unit; 11 - Planting rack; 12 - Planting trough; 12a - Top planting trough; 12b - Intermediate planting trough; 12c - Bottom planting trough;

[0029] 2 - Aquaculture unit; 21 - Aquaculture barrel;

[0030] 3 - Water treatment unit;

[0031] 4 - Water tank; 41 - Sump; 42 - Clear water tank;

[0032] 5 - Confluence plate; 51 - Bottom edge;

[0033] 6 - Water supply unit; 61 - Main water supply pipe; 62 - Branch water supply pipe; 63 - Control valve; 64 - End pipe section;

[0034] 7 - Return water unit; 71 - Overflow pipe; 72 - Main return water pipe;

[0035] 8 - Aeration module; 81 - Jet pump; 82 - Venturi tube; 83 - Oxygen generator; 84 - Oxygen cone;

[0036] 10 - Separation module; 20 - Microfiltration module; 30 - Ultraviolet disinfection module; 40 - Pump sump module; 50 - Degassing module; 60 - Nitrification module; 70 - pH adjustment module; 80 - Sewage tank. Detailed implementation manner

[0037] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are some, but not all, of the embodiments of this application. Generally, the components of the embodiments of this application described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0038] In the description of this application, it should be noted that the orientation or positional relationship indicated by terms such as "inner" and "outer" is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this application is usually placed when in use. It is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of this application. In addition, terms such as "first" and "second" are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0039] In the description of this application, it should also be noted that unless otherwise clearly specified and limited, the terms "set" and "connect" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

[0040] The aquaponics system in this application is mainly applied in the field of solar greenhouses. Specifically, by improving the utilization rate of the internal space of the solar greenhouse, it takes into account the problems of algae generation in the culture barrels and the lack of effective light for vegetables. Further, through water treatment, the recycling of the aquaculture water and the planting water is realized.

[0041] See Figure 1 and in combination with Figures 2 - 5, the aquaponics system in the present utility model includes: a planting unit 1 and an aquaculture unit 2. The planting unit 1 is mainly used for growing and cultivating vegetables, while the aquaculture unit 2 is mainly used for the aquaculture production of fish.

[0042] The planting unit 1 includes a planting rack 11 and a water tank 4. Planting grooves 12 are installed on the planting rack 11. Water supply for planting and water collection for return are carried out through the water tank 4. The aquaculture unit 2 includes a culture barrel 21, and aquaculture of fish is carried out through the culture barrel 21. By arranging the culture barrel 21 below the planting groove 12, on the one hand, it can effectively shade the culture barrel 21, avoiding direct sunlight in the culture barrel 21 from generating algae. On the other hand, it can enable the vegetables in the planting groove 12 to receive effective light and fully carry out photosynthesis, thereby ensuring the accumulation of substances during the growth and development of vegetables.

[0043] From the perspective of the overall setting, the culture barrel 21 is arranged below the planting groove 12, which can fully improve the space utilization rate in the aquaponic solar greenhouse, directly reflected in the high-level yields of aquatic products and vegetables. Furthermore, on the basis of the existing solar greenhouse, the economic value is improved.

[0044] By setting up a water treatment unit 3, the production water in the aquaponics system can be treated, and then the internal circulation of the production water in the symbiotic system can be realized, reducing the external water supply volume, saving energy and being environmentally friendly. The water treatment unit 3 is connected between the water tank 4 and the culture barrel 21 through pipelines, and can utilize the water produced in the aquaculture unit 2 with nutrient elements. Then, after the necessary treatment by the water treatment unit 3, it can meet the growth requirements of the planting unit 1, truly realizing the pollution-free production of green vegetables.

[0045] In one specific embodiment, the planting rack 11 includes a stepped frame, which can realize the stepped arrangement of the planting grooves 12, making full use of the three-dimensional space.

[0046] The planting groove 12 includes a top planting groove 12a located at the top of the stepped frame. The culture barrel 21 is arranged below the top planting groove 12a. Through this setting method, the height dimension of the culture barrel 21 can be increased, the culture barrel 21 can be arranged in the space with the largest height difference, the volume of the culture barrel 21 is increased, which is beneficial to realizing the increase in the production of fish products in the aquaculture unit 2.

[0047] At the same time, combining the direct shading of the culture barrel 21 by the top planting groove 12a, the indirect shading of the culture barrel 21 by the planting grooves 12 with different height differences, and the gaps between the planting grooves 12 with different height differences, it can reduce the probability of algae generation to the lowest level in the form of gap ventilation without affecting the normal production of the culture barrel 21.

[0048] The planting trough 12 further includes an intermediate planting trough 12b and a bottom planting trough 12c located at different heights of the stepped frame. By arranging the water tank 4 below the intermediate planting trough 12b and the bottom planting trough 12c, the lower space of the intermediate planting trough 12b and the bottom planting trough 12c can be fully utilized to meet the normal water supply and return water requirements of the planting unit 1.

[0049] It should be noted that in the present utility model, the specific installation position of the breeding barrel 21 is not limited, and the breeding barrel 21 can be arranged below the higher planting trough 12 at the rear side of the stepped frame according to the specific actual situation, which will not be elaborated here.

[0050] From the perspective of water supply, the water tank 4 includes a water collection tank 41 and a clean water tank 42. The water collection tank 41 is mainly used to receive the treated water produced by the water treatment unit 3 and supply water to the planting trough 12 through pipelines and pumps.

[0051] The water collection tank 41 is arranged below the bottom planting trough 12c, and the clean water tank 42 is arranged below the intermediate planting trough 12b. The clean water tank 42 is mainly used to receive the return water from different planting troughs 12, and then the return water after the vegetables absorb nutrients is returned to the water treatment unit 3 through pipelines and pumps for treatment. Through the above arrangement form, the layout of pipelines can be facilitated.

[0052] The present utility model fully considers the humidity inside the greenhouse and the daily evaporation of the breeding barrel 21, and a reflux plate 5 and a water dripping surface along the confluence plate are arranged at the bottom of the planting unit 1 to make the evaporated water flow into the clean water tank 42. Specifically, the reflux plate 5 is arranged below the planting trough 12, and the reflux plate 5 is inclined and installed on the planting rack 11 of the stepped frame.

[0053] Furthermore, the top of the reflux plate 5 is connected to the bottom of the top planting trough 12a and shields the breeding barrel 21, further playing a role in shading. The bottom of the reflux plate 5 extends obliquely downward to the upper part of the water collection tank 41, so that the reflux plate 5 forms a sunshade plate inclinedly arranged on the planting rack 11. At the same time, combined with the inclined surface, the condensed dew water can flow into the water collection tank 41.

[0054] In order to facilitate the dripping of the condensed water, a bottom edge 51 with an arc structure is arranged at the bottom of the reflux plate 5. The bottom edge 51 with the arc structure is arranged directly above the water collection tank 41, so that the condensed water can be fully and completely recovered into the water collection tank 41.

[0055] In order to realize water supply, a water supply unit 6 is arranged between the water collection tank 41 and different planting troughs 12, and water is supplied from the water collection tank 41 to the planting trough 12 through the water supply unit 6.

[0056] Specifically, the water supply unit 6 includes a water supply pump, a main water supply pipe 61, and a branch water supply pipe 62. The water supply pump (not shown in the figure) is installed in the sump 41 and is in the form of a submersible booster pump, mainly used for sucking and boosting the water in the sump 41. The main water supply pipe 61 is connected to the water supply pump, and the water boosted by the water supply pump is introduced into the main water supply pipe 61. Preferably, the branch water supply pipe 62 includes a branch pipe section connected to the main water supply pipe 61 and has multiple channels corresponding to the planting troughs 12 one by one.

[0057] A control valve 63 is installed on each branch water supply pipe 62, which can control whether each planting trough 12 is replenished with water. An end pipe section 64 is provided on the downstream pipeline of the control valve 63. By setting the end pipe section 64 as a horizontal pipe section that bends from the side of the planting trough 12 into the upper part of the planting trough 12, a drop-type water replenishment can be realized, and thus a drop water replenishment oxygenation is formed during the water replenishment process.

[0058] From the perspective of water return, a water return unit 7 is provided between the planting trough 12 and the clear water tank 42, and the water in the planting trough 12 is returned to the clear water tank 42 through the water return unit 7. Specifically, the water return unit 7 includes an overflow pipe 71 and a main water return pipe 72. The overflow pipe 71 is connected to the side wall of each planting trough 12, and a control valve 63 is installed on each overflow pipe 71, which can drain the water in the planting trough 12 in the form of controlling the overflow.

[0059] The overflow pipe 71 includes a vertical pipe and is respectively connected to the horizontally arranged main water return pipe 72 at the bottom, so as to realize the collection and return of the water return. The end water return port of the main water return pipe 72 is arranged above the clear water tank 42, and finally the returned water from different planting troughs 12 is collected.

[0060] The sump 41 in the present utility model is mainly used to receive the purified water from the water treatment unit 3 and introduce it into different planting troughs 12, while the clear water tank 42 returns the water to the water treatment unit 3. By setting a submersible booster pump in the clear water tank 42, the water in the clear water tank 42 is circulated and returned to the water treatment unit 3, and the water treatment unit 3 is drained and purified according to the water quality condition irregularly.

[0061] Specifically, the water treatment unit 3 includes a microfiltration module 20, a nitrification module 60, a pH adjustment module 70, and an oxygenation module 8. The aquaculture barrel 21 and the clear water tank 42 are respectively connected to the microfiltration module 20 through pipelines. The nitrification module 60 is connected to the sump 41 through a pipeline. The pH adjustment module 70 and the oxygenation module 8 are connected through a pipeline. The oxygenation module 8 is connected to the aquaculture barrel 21 through a pipeline.

[0062] In terms of the overall water system of the aquaponics system, the water treatment unit 3 includes a separation module 10, a microfiltration module 20, an ultraviolet disinfection module 30, a pump pool module 40, a degassing module 50, a nitrification module 60, and a pH adjustment module 70 arranged in sequence. The separation module 10 includes a vertical flow separator, and the microfiltration module 20 includes a microfilter. The oxygenation module 8 includes a jet pump 81, a Venturi tube 82, an oxygen generator 83, and an oxygen cone 84.

[0063] During the circulation process, the return water in the clear water tank 42 is input into the microfilter in a pumped form, and the wastewater in the aquaculture barrel 21 also enters the microfilter. At the same time, the bottom mud in the aquaculture barrel 21 enters the microfilter after passing through the vertical flow separator. After the microfilter performs microfiltration treatment on the incoming water and incoming mud, it successively passes through the ultraviolet disinfection module 30, the pump pool module 40, the degassing module 50, and the nitrification module 60. Among them, 1 / 3 of the total circulating water volume returns from the nitrification module 60 to the sump 41 for supplying water to the planting unit 1.

[0064] The sludge in the aquaculture barrel 21, the sludge in the vertical flow separator, the sludge in the microfilter, the sludge in the degassing module 50, the sludge in the nitrification module 60, the sludge in the pH adjustment module 70, and the sludge in the oxygen cone 84 are discharged to the sewage tank 80.

[0065] The remaining 2 / 3 of the circulating water volume is adjusted for pH by the pH adjustment module 70, then enters the jet pump 81, and is sent from the jet pump 81 to the Venturi tube 82. At the same time, the oxygen produced by the oxygen generator 83 is introduced into the Venturi tube 82. After increasing the flow rate and mixing, it enters the oxygen cone 84, and finally the oxygen cone 84 returns 2 / 3 of the circulating water volume to the aquaculture barrel 21.

[0066] Through this treatment method, it is possible to take into account the water usage requirements of both the planting unit 1 and the aquaculture unit 2, ensuring the formation of an effective and reliable internal circulation.

[0067] In the aquaponics system of this application, by placing the planting unit 1 above the aquaculture barrel 21 of the aquaculture unit 2 and shading the aquaculture barrel 21 of the aquaculture unit 2 by the planting unit 1 during the planting and aquaculture process, the planting unit 1 corresponding to the upper part can be set according to the size of the aquaculture barrel 21.

[0068] Moreover, the planting unit 1 is in a stepped form, and substrate planting or hydroponic planting is adopted on each layer of the planting unit 1. The water flows into the bottom clear water tank 42 by gravity in the stepped planting layers, and is pumped to the water treatment unit 3 for purification treatment by the water pump in the clear water tank 42 and then returned to the planting unit 1 and the aquaculture barrel 21 of the aquaculture unit 2.

[0069] A shared water treatment unit 3, multiple breeding barrels 21 and multiple soilless cultivation planting units 1 can be arranged in the solar greenhouse. The planting units 1 can be substrate cultivation or hydroponics. The pipelines of the water supply unit 6 and the pipelines of the water return unit 7 can be respectively arranged on both sides of the planting rack 11 to improve the space utilization rate.

[0070] It should be pointed out that the planting unit 1 can also utilize the structure of a stepped frame to pump the water pump in the water collection pool 41 to the top planting tank 12a at the highest position, and flow into the next-level planting tank 12 sequentially from top to bottom through the stepped planting tanks 12, with water cascading down and finally flowing into the clear water tank 42.

[0071] At the same time, as the construction height of the solar greenhouse increases, the stepped planting tanks 12 of the planting unit 1 are also set in the form of rolling and dynamically changing the height, which is convenient for the planting and harvesting of vegetables and will not be elaborated here.

[0072] It should be noted that, without conflict, the features in the embodiments of the present application can be combined with each other.

[0073] The above are only the preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A fish-vegetable symbiotic system, characterized in that: include: Planting unit and aquaculture unit; The planting unit includes a planting frame and a pool, the planting frame is equipped with a planting trough, and the aquatic unit includes a breeding barrel, which is arranged below the planting trough; A water treatment unit is connected between the water pool and the breeding tank through a pipeline.

2. The fish-vegetable symbiotic system according to claim 1, characterized in that: The planting rack comprises a stepped frame, the planting trough comprises a top planting trough located at the top of the stepped frame, and the breeding barrel is arranged below the top planting trough.

3. The fish-vegetable symbiotic system according to claim 2, characterized in that: The planting trough also includes a middle planting trough and a bottom planting trough located at different heights of the stepped frame, and the water pool is arranged below the middle planting trough and the bottom planting trough.

4. The fish-vegetable symbiotic system according to claim 3, characterized in that: The water pool includes a water collection pool and a clear water pool. The water collection pool is arranged below the bottom planting trough, and the clear water pool is arranged below the middle planting trough.

5. The fish-vegetable symbiotic system according to claim 4, characterized in that: A return plate is arranged below the planting trough, and the return plate is obliquely installed on the planting frame.

6. The fish-vegetable symbiotic system according to claim 5, characterized in that: The top of the return plate is connected to the bottom of the top planting groove and shields the breeding barrel. The bottom of the return plate extends downwardly to the top of the water collection pool and includes a bottom edge of an arc structure.

7. The fish-vegetable symbiotic system according to any one of claims 4 to 6, characterized in that: A water supply unit is arranged between the water collecting pool and the planting trough, and the water supply unit includes a water supply pump, a water supply main pipe and a water supply branch pipe. The water supply pump is installed in the water collecting pool, the water supply main pipe is connected to the water supply pump, and the water supply branch pipe is connected to the water supply main pipe.

8. The fish-vegetable symbiotic system according to claim 7, characterized in that: The water supply branch pipes include multiple branches, and correspond to the planting troughs one by one. A control valve is installed on each water supply branch pipe. A terminal pipe section is arranged on the downstream pipeline of the control valve. The terminal pipe section includes a horizontal pipe section that bends from the side and enters the top of the planting trough.

9. The fish-vegetable symbiotic system according to any one of claims 4 to 6, characterized in that: A return water unit is arranged between the planting trough and the clean water tank, and the return water unit includes an overflow pipe and a return water main pipe. The overflow pipe is connected to the side wall of each of the planting troughs. A control valve is installed on each of the overflow pipes, and they are respectively connected to the return water main pipe at the bottom. The end return water port of the return water main pipe is arranged above the clean water tank.

10. The fish-vegetable symbiotic system according to any one of claims 4 to 6, characterized in that: The water treatment unit includes a microfiltration module, a nitrification module, a pH adjustment module and an oxygenation module. The breeding tank and the clean water tank are respectively connected to the microfiltration module through pipelines, the nitrification module is connected to the water collection tank through a pipeline, the pH adjustment module is connected to the oxygenation module through a pipeline, and the oxygenation module is connected to the breeding tank through a pipeline.

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