Freshwater fish ecological cycle culture system
By designing a freshwater fish ecological circulation breeding system, the duckweed in the duckweed pond absorbs the feces nutrients in the fish pond, solving the problems of feces treatment and utilization in freshwater fish farming, and achieving the effect of water quality purification and cost saving.
Patent Information
- Application Number
- CN202422056679.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-23
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-08-23
AI Technical Summary
In the existing freshwater fish farming methods, the feces produced by fish need to be cleaned regularly manually, which increases costs, while the feces cannot be effectively utilized.
A freshwater fish ecological circulation breeding system is designed, including a duckweed fish pond, a sedimentation pond and a duckweed pond. The feces of the fish pond are pumped into the sedimentation pond through the first water pump. The duckweed absorbs nutrients in the sedimentation pond and purifies the water body to form an ecological cycle.
Effectively utilize the fish feces, reduce the cost of manual cleaning, and improve the water quality and the growth rate of duckweed through the purification effect of duckweed, saving feeding costs.
Smart Images
Figure CN222916823U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of aquaculture, in particular to a freshwater fish ecological circulation aquaculture system. Background Art
[0002] At present, freshwater fish, as an important part of the global aquatic resources, play an irreplaceable role in the global aquatic product supply. Freshwater fish are usually cultured in ponds. The pond water body is small, the water quality is easy to control, and the culture technology is relatively simple. In order to reduce the culture cost, duckweed is often used as food for feeding in the culture of freshwater fish. Since the growth rate of duckweed is extremely fast, they can quickly cover the water surface, which is a stable food source for freshwater fish such as grass carp and crucian carp.
[0003] However, there are also some problems in the existing freshwater fish culture methods. First, the feces produced by fish during the culture process need to be manually cleaned regularly to keep the water quality clean, which increases the labor cost. Second, the feces of the fish cleaned out of the fish pond are usually landfilled on the spot, and the feces cannot be effectively utilized. Content of the Utility Model
[0004] Aiming at the above defects, the technical problem to be solved by the utility model is to provide a freshwater fish ecological circulation aquaculture system, which can utilize the feces of fish and reduce the culture cost.
[0005] The above technical purpose of the utility model is achieved by the following technical solutions:
[0006] A freshwater fish ecological circulation aquaculture system includes a fish pond body. The fish pond body includes a duckweed-eating fish pond, a sedimentation tank and a duckweed pond. Duckweed is cultured in the duckweed pond or duckweed is cultured in both the sedimentation tank and the duckweed pond. A plurality of first water pumps are arranged at the bottom of the duckweed-eating fish pond. The water outlet end of the first water pump is communicated with the sedimentation tank through a drain pipe. The lower layer water of the duckweed pond and the duckweed-eating fish pond is separated by a low wall. The top of the low wall is provided with a partition net along the whole length. The top of the partition net is higher than the water level line. The duckweed-eating fish pond and the sedimentation tank are separated by a first partition wall. The duckweed pond and the sedimentation tank are separated by a second partition wall. A notch is opened at the top of the second partition wall. The upper layer water in the sedimentation tank can enter the duckweed pond through the notch. A blocking component is arranged on the water surface in the duckweed pond. The blocking component is used to block the duckweed in the duckweed pond from entering the duckweed-eating fish pond.
[0007] By adopting the above scheme, the freshwater fish farming that eats duckweed is carried out in the duckweed-eating fish pond. The feces produced by the fish in the duckweed-eating fish pond are pumped into the sedimentation tank by the first water pump. The duckweed in the sedimentation tank absorbs the nutrients of the feces for growth and purifies the water body in the sedimentation tank. The duckweed in the duckweed pond purifies the water body in the duckweed pond. By the characteristics of duckweed, using its powerful water purification function and the advantages of rapid growth and high yield, it provides high-quality feed and high-quality water source for the duckweed-eating fish, and the meat quality of the fish that eats duckweed is higher. The water in the sedimentation tank enters the duckweed pond through the notch, and under the action of the duckweed in the duckweed pond, the water quality can be further purified. Open the blocking component to release the block on the duckweed, and the duckweed-eating fish in the duckweed-eating fish pond can eat the duckweed at the partition net. Through the partition net, the water can flow conveniently between the duckweed pond and the duckweed-eating fish pond, and prevent the duckweed-eating fish in the duckweed-eating fish pond from entering the duckweed pond. Among them, duckweed can absorb the nutrients in the feces, mainly absorbing elements such as nitrogen, phosphorus, and potassium, which not only purifies the water body but also improves the growth rate of duckweed. By feeding the freshwater fish in the duckweed-eating fish pond with duckweed, the feeding cost is effectively saved. And the feces of the fish enter the sedimentation tank from the duckweed-eating fish pond, and the feces precipitate in the sedimentation tank. Duckweed can absorb the nutrients of the feces to promote its own growth. Duckweed enters the duckweed-eating fish pond to feed the fish in the duckweed-eating fish pond, thus forming an ecological cycle. It not only clears the feces in the duckweed-eating fish pond, ensures the water quality of the duckweed-eating fish pond, but also effectively uses the feces of the fish to cultivate duckweed, makes full use of the value of the feces of the fish, and effectively reduces the breeding cost.
[0008] The present utility model is further arranged such that the blocking component includes a plurality of floating rods connected in sequence, and the adjacent floating rods are detachably connected. The duckweed can be blocked by multiple floating rods. When it is necessary to feed the fish in the duckweed-eating fish pond, only need to disassemble some of the floating rods to release the block of the floating rods on the duckweed at that place, and the operation is more convenient.
[0009] The present utility model is further arranged such that a plurality of collecting grooves corresponding to the first water pumps one by one are provided at the bottom of the duckweed-eating fish pond, and the first water pumps are arranged at the bottoms of the corresponding collecting grooves. Through the collecting grooves, the feces produced by the fish in the duckweed-eating fish pond can be concentrated conveniently, so that the first water pump can transfer the feces in the duckweed-eating fish pond to the sedimentation tank.
[0010] The present utility model is further arranged such that the collecting groove is in a pot shape. Since the collecting groove is in a pot shape, the feces are more likely to converge towards the center of the bottom of the collecting groove, which is convenient for the first water pump to suck in the feces.
[0011] The present utility model is further arranged such that anti-escape nets corresponding to the collecting grooves one by one are provided at the bottom of the duckweed-eating fish pond, and the anti-escape nets cover the mouths of the corresponding collecting grooves. Since the anti-escape nets cover the mouths of the collecting grooves, the fish in the duckweed-eating fish pond can be prevented from being sucked into the water pump.
[0012] The present utility model is further configured such that a support frame is provided at the bottom of the escape prevention net, and the support frame is supported on the bottom of the duckweed-eating fish pond. The escape prevention net can be supported by the support frame to prevent it from collapsing downward.
[0013] The present utility model is further configured such that a first vertical shaft is provided in the duckweed pond, a second vertical shaft is provided in the duckweed-eating fish pond, the height of the top end of the first vertical shaft is lower than the water level line, the first vertical shaft and the second vertical shaft are communicated through a water inlet pipe, a second water pump is provided in the second vertical shaft, and the second water pump can pump the water in the second vertical shaft into the duckweed-eating fish pond. The duckweed in the duckweed pond purifies the water in the duckweed pond. After the water body in the duckweed pond is purified, the second water pump pumps the water in the second vertical shaft into the duckweed-eating fish pond, and the water in the first vertical shaft enters the second vertical shaft through the water inlet pipe under the action of siphonage, thereby forming a cycle.
[0014] The present utility model is further configured such that the height of the top end of the second vertical shaft is higher than the water level line. The water in the second vertical shaft overflows into the duckweed-eating fish pond from the top end of the second vertical shaft, which enables the water overflowing from the second vertical shaft to increase the contact area with the air and carry some oxygen in the air into the duckweed-eating fish pond, thereby increasing the oxygen content in the duckweed-eating fish pond.
[0015] The present utility model is further configured such that the water inlet pipe is provided at the bottom of the duckweed-eating fish pond and the duckweed pond, and the water inlet pipe penetrates through the low wall. The water inlet pipe is provided at the bottom and penetrates through the low wall, which makes the length of the water inlet pipe shorter and the installation position of the water inlet pipe more reasonable, reducing the influence on the activities of the fish.
[0016] In summary, a freshwater fish ecological circulation aquaculture system provided by the present utility model has at least the following
[0017] Beneficial effects:
[0018] 1. Make full use of the value of fish feces to form an ecological cycle in which fish feces are used to cultivate duckweed and duckweed is used to raise fish, effectively saving the aquaculture cost.
[0019] 2. There is no need to manually clean the duckweed-eating fish pond frequently to purify the water body, reducing the labor cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0021] Figure 1It is a schematic plan view of the present utility model;
[0022] Figure 2 It is a schematic sectional view of the present utility model.
[0023] The reference numerals include: duckweed-eating fish pond 1, sedimentation tank 2, duckweed pond 3, first water pump 4, drain pipe 5, low wall 6, partition net 7, water level line 8, first partition wall 9, second partition wall 10, notch 11, blocking assembly 12, collection tank 13, anti-escape net 14, first shaft 15, second shaft 16, water inlet pipe 17, second water pump 18. Specific embodiments
[0024] In order to enable those skilled in the art to better understand the technical solution of the present utility model, the present utility model will be further described in detail below with reference to the attached Figure 1-2 drawings and specific embodiments.
[0025] Please refer to Figure 1-2 , a freshwater fish ecological cycle aquaculture system provided in this embodiment, the fish pond body includes a duckweed-eating fish pond 1, a sedimentation tank 2 and a duckweed pond 3. Duckweed is cultured in the duckweed pond 3 or duckweed is cultured in both the sedimentation tank 2 and the duckweed pond 3. A plurality of first water pumps 4 are provided at the bottom of the duckweed-eating fish pond 1. The water outlet end of the first water pump 4 is communicated with the sedimentation tank 2 through a drain pipe 5. The lower-layer water of the duckweed pond 3 and the duckweed-eating fish pond 1 is separated by a low wall 6. The top of the low wall 6 is provided with a partition net 7 along the whole length. The top of the partition net 7 is higher than the water level line 8. The duckweed in the duckweed pond 3 can enter the duckweed-eating fish pond 1 through the partition net 7. The partition net 7 can prevent the fish in the duckweed pond 3 and the duckweed-eating fish pond 1 from passing through. The duckweed-eating fish pond 1 and the sedimentation tank 2 are separated by a first partition wall 9. The duckweed pond 3 and the sedimentation tank 2 are separated by a second partition wall 10. A notch 11 is opened at the top of the second partition wall 10. The upper-layer water in the sedimentation tank 2 can enter the duckweed pond 3 through the notch 11. A blocking assembly 12 is provided on the water surface in the duckweed pond 3. The blocking assembly 12 is used to block the duckweed in the duckweed pond 3 from entering the duckweed-eating fish pond 1.
[0026] By adopting the above solution, freshwater fish that eat duckweed are cultured in the duckweed-eating fish pond 1. The duckweed-eating fish can be grass carp, crucian carp and other fish that eat duckweed. The feces produced by the fish in the duckweed-eating fish pond 1 are pumped into the sedimentation tank 2 by the first water pump 4. The duckweed in the sedimentation tank 2 absorbs the nutrients in the feces for growth and purifies the water body in the sedimentation tank 2. The duckweed in the duckweed pond 3 purifies the water body in the duckweed pond 3. The water in the sedimentation tank 2 enters the duckweed pond 3 through the notch 11, and under the action of the duckweed in the duckweed pond 3, the water quality can be further purified. Open the blocking component to remove the block, and the duckweed-eating fish can eat duckweed at the partition net 7. Through the partition net 7, the water can flow conveniently between the duckweed pond 3 and the duckweed-eating fish pond 1, and prevent the duckweed-eating fish in the duckweed-eating fish pond 1 from entering the duckweed pond 3. Among them, duckweed can absorb the nutrients in the feces, mainly absorbing elements such as nitrogen, phosphorus and potassium, which not only purifies the water body but also improves the growth rate of duckweed. By feeding the freshwater fish in the duckweed-eating fish pond 1 with duckweed, the feeding cost is effectively saved. Moreover, the feces of the fish enter the sedimentation tank 2 from the duckweed-eating fish pond 1, and the duckweed can absorb the nutrients in the feces to promote its own growth. The duckweed enters the duckweed-eating fish pond 1 to feed the fish in the duckweed-eating fish pond 1, thus forming an ecological cycle. It not only clears the feces in the duckweed-eating fish pond 1, ensures the water quality of the duckweed-eating fish pond 1, but also effectively uses the feces of the fish to culture duckweed, makes full use of the value of the feces of the fish, and effectively reduces the breeding cost. In addition, since duckweed stops growing above 35°C and below 10°C, at this time, the function of duckweed is mainly to raise and purify water. Fish that do not eat duckweed, such as bighead carp, southern catfish, silver carp, etc., can also be cultured in the duckweed pond 3 to improve the space utilization rate of the fish pond. Moreover, bighead carp and silver carp have the function of purifying the water body, and the partition net 7 can also prevent the fish that do not eat duckweed cultured in the duckweed pond 3 from entering the duckweed-eating fish pond 1.
[0027] In some embodiments, in order to ensure the supply of duckweed, preferably, the area ratio of the duckweed-eating fish pond 1 for culturing duckweed-eating fish to the duckweed pond 3 for culturing fish that do not eat duckweed is 3:7.
[0028] In some embodiments, specifically, the blocking component 12 includes a number of floating rods connected in sequence, and the adjacent floating rods are detachably connected.
[0029] A number of collecting grooves 13 corresponding to the first water pump 4 one by one are provided at the bottom of the duckweed-eating fish pond 1. The first water pump 4 is arranged at the bottom of the corresponding collecting groove 13. The collecting groove 13 is preferably pot-shaped. A number of escape-preventing nets 14 corresponding to the collecting grooves 13 one by one are provided at the bottom of the duckweed-eating fish pond 1. The escape-preventing net 14 covers the mouth of the corresponding collecting groove 13. A support frame is provided at the bottom of the escape-preventing net 14, and the support frame supports on the bottom of the duckweed-eating fish pond 1.
[0030] In order to accelerate the water circulation and exchange between the duckweed pond 3 and the fish pond 1 that feeds on duckweed, a first vertical shaft 15 is provided in the duckweed pond 3, and the height of the top end of the first vertical shaft 15 is lower than the height of the water level line 8. Preferably, the distance between the top end of the first vertical shaft 15 and the water level line 8 is 20 cm. On the one hand, it can prevent duckweed from being sucked in, and on the other hand, it can prevent the fish in the duckweed pond 3 from being sucked into the first vertical shaft 15. A second vertical shaft 16 is provided in the fish pond 1 that feeds on duckweed. The first vertical shaft 15 and the second vertical shaft 16 are connected through a water inlet pipe 17. A second water pump 18 is provided in the second vertical shaft 16, and the second water pump 18 can pump the water in the second vertical shaft 16 into the fish pond 1 that feeds on duckweed. Both the first vertical shaft 15 and the second vertical shaft 16 can adopt double-wall corrugated pipes in the prior art.
[0031] In order to increase the oxygen content in the fish pond 1 that feeds on duckweed, the height of the top end of the second vertical shaft 16 is higher than the water level line 8. The water inlet pipe 17 is arranged at the bottom of the fish pond 1 that feeds on duckweed and the duckweed pond 3, and the water inlet pipe 17 penetrates through the low wall 6.
[0032] It should be noted that the words indicating directions in this article, such as up and down, etc., are all set in the Figure 1 direction for the convenience of description only and do not have any other specific meanings.
[0033] It should also be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that an article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of another identical element in the article or device including the above elements.
[0034] Specific examples are applied in this article to elaborate on the principle and implementation mode of the present utility model. The description of the above embodiments is only used to help understand the core idea of the present utility model. It should be pointed out that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and modifications can be made to the present utility model, and these improvements and modifications also fall within the protection scope of the claims of the present utility model.
Claims
1. A freshwater fish ecological circulation breeding system, comprising a fish pond body, characterized in that: The fish pond body comprises a duckweed edible fish pond (1), a sedimentation tank (2) and a duckweed pond (3). Duckweed is cultured in the duckweed pond (3) or duckweed is cultured in both the sedimentation tank (2) and the duckweed pond (3). A plurality of first water pumps (4) are provided at the bottom of the duckweed edible fish pond (1). The water outlet of the first water pump (4) is connected to the sedimentation tank (2) through a drainage pipe (5). The lower water of the duckweed pond (3) and the duckweed edible fish pond (1) are separated by a low wall (6). A partition net (7) is provided at the top of the low wall (6) along the entire length. The top of the partition net (7) is The end of the duckweed pond (1) is higher than the water level line (8), the duckweed-eating fish pond (1) and the sedimentation pond (2) are separated by a first partition wall (9), the duckweed pond (3) and the sedimentation pond (2) are separated by a second partition wall (10), a notch (11) is provided at the top of the second partition wall (10), and the upper water in the sedimentation pond (2) can enter the duckweed pond (3) through the notch (11), and a blocking component (12) is provided on the water surface in the duckweed pond (3), and the blocking component (12) is used to prevent the duckweed in the duckweed pond (3) from entering the duckweed-eating fish pond (1).
2. A freshwater fish ecological circulation breeding system as claimed in claim 1, characterized in that: The blocking assembly (12) comprises a plurality of floating rods connected in sequence, and adjacent floating rods are detachably connected.
3. A freshwater fish ecological circulation breeding system as claimed in claim 1 or 2, characterized in that: The bottom of the duckweed-eating fish pond (1) is provided with a plurality of collecting troughs (13) corresponding one to one with the first water pumps (4), and the first water pumps (4) are arranged at the bottom of the corresponding collecting troughs (13).
4. A freshwater fish ecological circulation breeding system as claimed in claim 3, characterized in that: The collecting tank (13) is pot-shaped.
5. A freshwater fish ecological circulation breeding system as claimed in claim 3, characterized in that: The bottom of the duckweed-eating fish pond (1) is provided with escape-proof nets (14) corresponding one to one with the collecting tanks (13), and the escape-proof nets (14) cover the mouths of the corresponding collecting tanks (13).
6. A freshwater fish ecological circulation breeding system as claimed in claim 5, characterized in that: A support frame is provided at the bottom of the anti-escape net (14), and the support frame is supported at the bottom of the duckweed-eating fish pond (1).
7. A freshwater fish ecological circulation breeding system as claimed in claim 1, characterized in that: The duckweed pond (3) is provided with a first vertical shaft (15), the duckweed-eating fish pond (1) is provided with a second vertical shaft (16), the top of the first vertical shaft (15) is lower than the water level (8), the first vertical shaft (15) and the second vertical shaft (16) are connected via a water inlet pipe (17), the second vertical shaft (16) is provided with a second water pump (18), and the second water pump (18) can pump water in the second vertical shaft (16) into the duckweed-eating fish pond (1).
8. A freshwater fish ecological circulation breeding system as claimed in claim 7, characterized in that: The height of the top of the second vertical shaft (16) is higher than the water level (8).
9. A freshwater fish ecological circulation breeding system as claimed in claim 7 or 8, characterized in that: The water inlet pipe (17) is arranged at the bottom of the duckweed fish pond (1) and the duckweed pond (3), and the water inlet pipe (17) penetrates the low wall (6).