Step siphon type tidal nutrition pool
By using the siphon pipe connection and sensor control of the tiered siphon tidal nutrient pond, the problem of uneven water supply caused by uneven bottom of the seedling pond was solved, achieving uniform growth of tobacco seedlings and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-04-07
AI Technical Summary
In existing tobacco moist seedling raising technology, uneven bottom of the seedling pool leads to uneven water and fertilizer supply, making it difficult to achieve uniform growth of tobacco seedlings. In addition, dividing the seedling pool into smaller ones increases the workload and labor costs.
A tiered siphon-type tidal nutrient pond is adopted, which connects multiple seedling ponds through siphon pipes. The siphon effect is used to achieve periodic water and fertilizer supply. Combined with sensor and valve control, manual intervention is reduced.
This achieved uniform growth of tobacco seedlings, reduced labor costs, saved electricity, and improved seedling efficiency and equipment stability.
Smart Images
Figure CN224084236U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tobacco cultivation technology, specifically to a tiered siphon-type tidal nutrient pool. Background Technology
[0002] Moist seedling raising technology for tobacco involves intermittent, moderate watering to create alternating wet and dry conditions in the seedling substrate, thereby increasing its temperature and aeration. Numerous studies have shown that moist seedling raising effectively promotes seedling germination and ensures overall uniformity and consistency, making it a seedling raising technique worthy of widespread promotion. This technique requires a level bottom in the seedling trays to precisely control the water supply. However, in actual production, it is difficult for seedling units to achieve large-scale ground leveling; as a result, uneven water and fertilizer supply to the seedling trays due to uneven bottoms leads to inconsistent germination and subsequent growth of tobacco seedlings, making it difficult to achieve uniform and robust seedlings.
[0003] To reduce the difficulty of leveling the bottom of the seedling bed, it is usually necessary to miniaturize the seedling bed, that is, to divide a large seedling bed into multiple smaller seedling beds, each of which is leveled independently. While this approach makes leveling easier, it increases the workload of water and fertilizer supply, requiring independent control of water and fertilizer for each small seedling bed, which is not conducive to achieving large-scale, efficient production.
[0004] Therefore, this invention connects multiple small seedling ponds at different levels with bent pipes, and automatically completes the periodic water supply and drainage as well as fertilizer supply using the siphon effect. After the equipment is installed, a large amount of manual intervention is no longer required, thus reducing labor costs. Utility Model Content
[0005] The present invention aims to solve the above-mentioned technical problems and proposes a new siphon-type tidal nutrient pool, which can automatically complete the periodic water supply, drainage and fertilizer supply by utilizing the siphon effect. This siphon-type tidal nutrient pool can eliminate the need for a large amount of manual labor, significantly reduce the labor intensity of staff and reduce labor costs.
[0006] To achieve the above-mentioned objectives, the technical solution of this utility model is as follows:
[0007] A tiered siphon-type tidal nutrient tank includes at least two nutrient solution tanks arranged in tiers and a recovery tank. Siphon pipes are provided between adjacent nutrient solution tanks and between the lowest nutrient solution tank and the recovery tank. The highest position of the siphon pipe is lower than the highest water storage position of the nutrient solution tank where its inlet end is located. The recovery tank is connected to the highest nutrient solution tank through a circulating water pipe, and a booster pump is provided on the circulating water pipe.
[0008] Furthermore, a filter screen is installed at the inlet end of the siphon pipe.
[0009] Furthermore, the filter screen has a hemispherical structure, and the filter screen can be detachably connected to the inlet end of the siphon pipe.
[0010] Furthermore, each nutrient solution tank is equipped with 3 to 8 siphon tubes arranged in parallel and evenly; the diameter of the siphon tubes is 4 to 5 mm.
[0011] Furthermore, a humidity sensor is installed in the substrate of the seedling tray in the highest nutrient solution tank, and the humidity sensor is connected to the booster pump control.
[0012] Furthermore, the recycling pool is equipped with a liquid level sensor, and the volume of the recycling pool at the lowest position is 1.2 to 1.5 times that of a single nutrient solution pool.
[0013] Furthermore, the recycling tank is connected to a tap water pipe, which is equipped with valve I, and a level sensor is connected to valve I for control.
[0014] Furthermore, the recycling pool is equipped with a conductivity sensor and an alarm, with the conductivity sensor and the alarm being controlled and connected.
[0015] Furthermore, a collection groove is provided on the side of the nutrient solution tank near the siphon pipe end.
[0016] Furthermore, the nutrient solution tanks are set to 4 to 6 levels, with a height difference of 100 to 120 mm between adjacent nutrient solution tanks.
[0017] The beneficial effects of this utility model are:
[0018] I. This utility model adopts the existing small seedling pond (i.e., nutrient solution pond) for cultivating tobacco seedlings. It has the advantage of easy leveling when designing a small seedling pond. At the same time, the multiple nutrient solution ponds of this siphon-type tidal nutrient pond are used to place seedling trays. Nutrient solution is intermittently supplied to multiple nutrient solution ponds through siphon pipes. By selecting siphon pipes with different structures and controlling the working time of the booster pump on the circulating water pipe, the soaking time of tobacco seedlings in nutrient solution can be controlled. In the whole process, the booster pump only needs to be started when the nutrient solution in the recovery pond is transported to the nutrient solution pond at the highest position. The power consumption is less than that of the traditional system, and the cost is lower.
[0019] II. In this utility model, a filter screen is provided at the inlet end of the siphon pipe, which helps to intercept large pieces of leaves and other debris, preventing these debris from entering the siphon pipe and affecting the normal operation of the device. Preferably, the filter screen has a hemispherical structure to prevent fine debris in the pool from accumulating at the filter screen and affecting its normal operation. The filter screen and the inlet end of the siphon pipe are preferably detachably connected, which facilitates the removal of debris intercepted on the filter screen.
[0020] Thirdly, in this utility model, each nutrient solution tank is equipped with multiple siphon tubes arranged in parallel. The number of siphon tubes can be determined comprehensively based on the specifications of each nutrient solution tank, the residence time of the nutrient solution in the tank, and the diameter of the siphon tubes, to ensure the effect of tidal nutrient solution supply. The diameter of the siphon tubes should preferably be 4~5mm to ensure their siphon effect.
[0021] IV. In this utility model, a humidity sensor is installed in the substrate of the seedling tray in the highest nutrient solution tank. The humidity sensor can be used to monitor the water holding capacity of the substrate in the seedling tray. The humidity sensor is connected to the booster pump control. When the substrate water holding capacity is lower than the preset value (e.g., 40%), the booster pump can be activated to promptly input the nutrient solution in the recovery tank into the nutrient solution tank at the highest position through the circulating water pipe.
[0022] V. In this utility model, a liquid level sensor is installed in the recycling tank to monitor the amount of nutrient solution in the tank, facilitating timely replenishment of tap water to achieve the minimum liquid level requirement for tidal nutrient solution supply. The volume of the recycling tank at the lowest position is preferably designed to be 1.2 to 1.5 times the volume of a single nutrient solution tank.
[0023] VI. In this utility model, the recycling tank is connected to a tap water pipe, and valve I is installed on the tap water pipe. A liquid level sensor is connected to valve I for control. The liquid level sensor and valve I are interlocked. When the liquid level sensor detects that the liquid level in the recycling tank is lower than the set value, it controls valve I to open, thereby automatically replenishing water to the recycling tank until the set upper limit of the water level is reached, so as to ensure that the minimum liquid level requirement for tidal nutrient solution supply is met.
[0024] VII. In this utility model, the recycling tank is equipped with a conductivity sensor and an alarm. The conductivity sensor is connected to the alarm for monitoring the nutrient content in the nutrient solution. When the concentration is lower than a preset value, the alarm will issue a warning, prompting staff to replenish the nutrient solution in the recycling tank in a timely manner. Simultaneously, the conductivity sensor also helps staff to more accurately determine the amount of nutrient solution consumed by the tobacco seedlings.
[0025] 8. In this utility model, a collection groove is provided on the side of the nutrient solution tank near the siphon pipe end, which is conducive to the nutrient solution in the tank being collected into the collection groove, avoiding the roots of tobacco seedlings being soaked in the nutrient solution for a long time, and is conducive to controlling its temperature and aeration, providing an ideal growth environment for the growth of tobacco seedlings. On the other hand, it facilitates the normal operation of the siphon pipe.
[0026] 9. In this utility model, the height of the nutrient solution tank is generally set between 100 and 120 mm, the nutrient solution tank is set to 4 to 6 levels, and the height difference between adjacent nutrient solution tanks is also set to the range of 100 to 120 mm, so as to ensure that all the liquid in the upper level nutrient solution tank can be siphoned to the lower level tank. Attached Figure Description
[0027] Figure 1 This is a schematic diagram of the structure of a siphon-type tidal nutrient pool.
[0028] Figure 2 This is a magnified view of a portion of the siphon tube in a siphon-type tidal nutrient pool.
[0029] Figure 3 This is a schematic diagram of a siphon pipe with a filter screen installed at the inlet end.
[0030] Figure 4 This is a structural diagram of another implementation of the filter.
[0031] Figure 5 This is a schematic diagram of one embodiment of the siphon-type tidal nutrient pool in Example 5.
[0032] Figure 6 This is a schematic diagram of one embodiment of the siphon-type tidal nutrient pool in Example 6.
[0033] Figure 7 This is a schematic diagram of one embodiment of the siphon-type tidal nutrient pool in Example 7.
[0034] Figure 8 This is a schematic diagram of another preferred embodiment of the siphon-type tidal nutrient pool.
[0035] Among them, 1. Nutrient solution tank A; 2. Nutrient solution tank B; 3. Nutrient solution tank C; 4. Recovery tank; 5. Siphon A; 6. Siphon B; 7. Siphon C; 8. Circulating water pipe; 9. Booster pump; 10. Filter screen; 11. Liquid level sensor; 12. Tap water pipe; 13. Valve I; 14. Conductivity sensor; 15. Liquid collection trough; 16. Nutrient solution; 17. Alarm; 18. Seedling tray; 19. Humidity sensor; 1.1. Highest water storage position of nutrient solution tank A; 5.1. Inlet end of siphon A; 5.2. Highest position of siphon A. Detailed Implementation
[0036] The present invention will be further described in detail below with reference to the embodiments, but the implementation of the present invention is not limited thereto.
[0037] Example 1
[0038] This embodiment is the most basic implementation method, a stepped siphon tidal nutrient pool, which relates to the field of tobacco cultivation technology. This embodiment takes a structure including three nutrient solution pools 16 and a recycling pool 4 as an example to further illustrate this solution.
[0039] refer to Figure 1The system includes tiered nutrient solution tanks A1, B2, and C3, and a recovery tank 4. Each nutrient solution tank contains a seedling tray 18 filled with seedling substrate. Siphons A5, B6, and C7 are installed between adjacent nutrient solution tanks 16, and between the lowest nutrient solution tank 16 and the recovery tank 4, respectively. The highest point of each siphon is lower than the highest water level in the nutrient solution tank 16 where its inlet is located. For example, consider siphon A5 between nutrient solution tanks A1 and B2. Figure 2 The highest position of siphon A (5.2) is lower than the highest water storage position of nutrient solution tank A (5.1) located at the inlet end of siphon A (1.1). The recovery tank 4 is connected to the nutrient solution tank 16 at the highest position via a circulating water pipe 8, and a booster pump 9 is installed on the circulating water pipe 8.
[0040] During use, manually add appropriate tap water to the recycling tank 4 and add a suitable amount of nutrients to prepare a nutrient solution 16 of appropriate concentration. Start the booster pump 9 to deliver the nutrient solution 16 to the nutrient solution tank A1 to supply nutrient solution 16 to the tobacco seedlings in the nutrient solution tank A1 until the level of nutrient solution 16 in the nutrient solution tank A1 exceeds the highest point of the siphon pipe A5, that is, when the siphon effect is achieved, turn off the booster pump 9. Siphon A5 gradually transfers nutrient solution 16 from nutrient solution tank A1 to nutrient solution tank B2. After a period of time, the liquid level in nutrient solution tank B2 reaches the high level of siphon B6 (below the lower wall of the pipe), achieving a siphon effect. Siphon B6 then transfers nutrient solution 16 from nutrient solution tank B2 to nutrient solution tank C3. Similarly, after a period of time, the liquid level in nutrient solution tank C3 reaches the high level of siphon C7, achieving a siphon effect. Siphon C7 then transfers nutrient solution 16 from nutrient solution tank C3 to the lowest-positioned recovery tank 4, ready for the next round of nutrient solution 16 supply to each nutrient solution tank. This achieves a tidal supply of nutrient solution 16.
[0041] This structural design retains the advantages of the original "small seedling pond" on the one hand, and utilizes the siphon effect to automatically complete the periodic water supply and drainage as well as fertilizer supply on the other hand. Only when the nutrient solution 16 is transported from the lowest position of the recovery pool 4 to the highest position of the nutrient solution pool A1 is a booster pump 9 required. The entire system is more energy-efficient and has a lower cost compared to the structure in the existing technology.
[0042] Preferably, a collection groove 15 is provided on the side of the nutrient solution pool 16 near the siphon pipe end. This facilitates the collection of nutrient solution 16 in the pool into the collection groove 15, reduces the time that the roots of the tobacco seedlings are immersed in the nutrient solution 16, helps to control its temperature and aeration, and provides an ideal growth environment for the tobacco seedlings. On the other hand, it also facilitates the normal operation of the siphon pipe.
[0043] Example 2
[0044] The difference between this embodiment and Embodiment 1 is that a filter screen 10 is provided at the inlet end of the siphon tube. (Reference) Figure 3 Filter 10 helps to isolate large pieces of leaf debris, ensuring the siphon pipe works properly.
[0045] Example 3
[0046] The difference between this embodiment and embodiment 2 is that the filter 10 has a hemispherical structure. (Refer to...) Figure 4 Compared with cylindrical or straight plate-shaped filter screens 10, it can reduce the accumulation of fine debris at the filter screen 10. The filter screen 10 is detachably connected to the inlet end of the siphon pipe, making it easy to remove the filter screen 10 and clean the residue attached to it.
[0047] Example 4
[0048] Compared with Examples 1-3, the difference in this embodiment is that each nutrient solution tank is preferably equipped with 3-8 siphon tubes arranged in parallel and evenly. The number of siphon tubes can be determined according to the specific specifications of the nutrient solution tank and the preset residence time of the nutrient solution 16 in the tank. The diameter of the siphon tubes is 4-5mm to ensure their siphon effect.
[0049] Example 5
[0050] The difference between this embodiment and embodiments 1-4 is that a humidity sensor 19 is installed in the substrate of the seedling tray 18 in the highest nutrient solution tank. The humidity sensor 19 is connected to the booster pump 9 for control. Figure 5 .
[0051] Example 6
[0052] The difference between this embodiment and embodiments 1-5 is that the recovery tank 4 is equipped with a liquid level sensor 11, for reference... Figure 6 This is used to monitor the amount of nutrient solution 16 in the recovery tank 4, so as to facilitate timely replenishment of tap water and achieve the minimum liquid level requirement for tidal supply of nutrient solution 16. The volume of the recovery tank 4 at the lowest position should preferably be 1.2 to 1.5 times the volume of a single nutrient solution tank.
[0053] Example 7
[0054] Compared with Examples 1-6, the difference in this embodiment is that the recycling tank 4 is connected to a water pipe 12, and a valve I 13 is installed on the water pipe 12. The liquid level sensor 11 is connected to the valve I 13 for control. (Refer to...) Figure 7 The liquid level sensor 11 is interlocked with valve I13. When the liquid level sensor 11 detects that the liquid level in the recovery tank 4 is lower than the set value, it controls valve I13 to open, so as to automatically replenish water to the recovery tank 4 and ensure that the minimum liquid level requirement of the tidal nutrient solution 16 is met.
[0055] Example 8
[0056] The difference between this embodiment and embodiments 1-7 is that a conductivity sensor 14 is provided in the recycling pool 4 for reference. Figure 8 This device monitors the nutrient content in the nutrient solution 16. When the content falls below a preset value, it alerts staff to replenish the nutrient solution in the recovery tank 4. Simultaneously, the conductivity sensor 14 helps staff more accurately determine the amount of nutrient solution consumed by the tobacco seedlings.
[0057] Preferably, an alarm 17 can also be set and connected to the conductivity sensor 14 for control. When the conductivity sensor 14 detects the concentration of nutrient reagent in the nutrient solution 16 in the recovery tank 4, the alarm 17 can sound an alarm when the concentration is lower than the preset concentration, prompting the staff to add nutrient reagent. When the concentration reaches the preset value, the alarm 17 will issue an alarm signal to stop adding nutrient reagent.
[0058] Example 9
[0059] Compared with Examples 1-8, the difference in this embodiment is that the nutrient solution tank is set to 4-6 levels, and the height difference between adjacent nutrient solution tanks is preferably set to 100-120mm.
[0060] Example 10
[0061] To facilitate public understanding of this utility model, this embodiment uses a preferred tiered siphon tidal nutrient pool as an example to further illustrate the solution.
[0062] refer to Figure 8 It includes a tiered nutrient solution tank A1, nutrient solution tank B2, nutrient solution tank C3 and a recycling tank 4. The height of nutrient solution tank A1, nutrient solution tank B2 and nutrient solution tank C3 is designed to be 100mm, and the height difference between adjacent nutrient solution tanks is also set to 100mm.
[0063] Siphon pipes A5, B6, and C7 are respectively installed between adjacent nutrient solution tanks 16, and between the lowest nutrient solution tank 16 and the recovery tank 4. The highest point of each siphon pipe is lower than the highest water storage position of the nutrient solution tank 16 where its inlet end is located. Taking siphon pipe A5 installed between nutrient solution tank A1 and nutrient solution tank B2 as an example, refer to... Figure 2 The highest position 5.2 of the siphon pipe A is lower than the highest water storage position 1.1 of the nutrient solution tank A, where the inlet end 5.1 of the siphon pipe A is located, to ensure that all the liquid in the nutrient solution tank of the previous stage can be siphoned and transferred to the nutrient solution tank of the next stage. The recovery tank 4 is connected to the nutrient solution tank 16 at the highest position through the circulating water pipe 8, and the circulating water pipe 8 is equipped with a booster pump 9.
[0064] In this embodiment, a filter screen 10 is provided at the inlet end of the siphon tube. The filter screen 10 has a hemispherical structure and is detachably connected to the inlet end of the siphon tube. (Refer to...) Figure 4 .
[0065] In this embodiment, each nutrient solution pool 16 is provided with 3 parallel and evenly arranged siphon tubes, and the diameter of the siphon tubes is 5mm.
[0066] In this embodiment, a humidity sensor 19 is installed in the substrate of the seedling tray 18 in the highest nutrient solution tank A1. The humidity sensor 19 is connected to the booster pump 9 for control. Figure 8 The humidity sensor 19 can be used to monitor the water holding capacity in the substrate of the seedling tray 18. The humidity sensor 19 is connected to the booster pump 9 for control. When the water holding capacity of the substrate is lower than the preset value (40%), the booster pump 9 can be activated to promptly input the nutrient solution 16 in the recovery tank 4 into the nutrient solution tank at the highest position through the circulating water pipe 8.
[0067] In this embodiment, a level sensor 11 is installed in the recycling tank 4. The volume of the recycling tank 4 at its lowest position is preferably 1.2 to 1.5 times the volume of a single nutrient solution tank. The recycling tank 4 is connected to a water pipe 12, and a valve I 13 is installed on the water pipe 12. The level sensor 11 is connected to the valve I 13 for control.
[0068] In this embodiment, a conductivity sensor 14 is provided in the recycling tank 4. An alarm 17 can also be set up and connected to the conductivity sensor 14. When the conductivity sensor 14 detects the concentration of nutrient reagent in the nutrient solution 16 in the recycling tank 4, if the concentration is lower than a preset value, the alarm 17 can sound an alarm to prompt the staff to add nutrient reagent. When the concentration reaches the preset value, the alarm 17 will issue an alarm signal to stop adding nutrient reagent.
[0069] In this embodiment, a collection groove 15 is provided in the nutrient solution pool 16 near the siphon pipe end. The collection groove is 10mm deep and 10mm wide. This facilitates the collection of nutrient solution 16 in the pool into the collection groove 15, reducing the time that the roots of the tobacco seedlings are immersed in the nutrient solution 16. It also helps to control the temperature and aeration, providing an ideal growth environment for the tobacco seedlings. On the other hand, it facilitates the normal operation of the siphon pipe.
[0070] During use, manually add appropriate tap water to the recycling tank 4 and add a suitable amount of nutrients to prepare a nutrient solution 16 of appropriate concentration. Start the booster pump 9 to deliver the nutrient solution 16 to the nutrient solution tank A1 to supply nutrient solution 16 to the tobacco seedlings in the nutrient solution tank A1 until the level of nutrient solution 16 in the nutrient solution tank A1 exceeds the highest point of the siphon pipe A5, that is, when the siphon effect is achieved, turn off the booster pump 9. Siphon A5 gradually transfers nutrient solution 16 from nutrient solution tank A1 to nutrient solution tank B2. After a period of time, the liquid level in nutrient solution tank B2 reaches the high level of siphon B6 (below the lower wall of the pipe), achieving a siphon effect. Siphon B6 then transfers nutrient solution 16 from nutrient solution tank B2 to nutrient solution tank C3. Similarly, after a period of time, the liquid level in nutrient solution tank C3 reaches the high level of siphon C7, achieving a siphon effect. Siphon C7 then transfers nutrient solution 16 from nutrient solution tank C3 to the lowest-positioned recovery tank 4, ready for the next round of nutrient solution 16 supply to each nutrient solution tank. This achieves a tidal supply of nutrient solution 16.
[0071] This structural design allows for automatic periodic water supply and drainage, as well as fertilizer supply, using the siphon effect. The only time a booster pump 9 is needed is when transferring the nutrient solution 16 from the lowest position of the recovery tank 4 to the highest position of the nutrient solution tank A1. Compared to existing technologies, this system is more energy-efficient and has a lower cost.
Claims
1. A stepped siphon-type tidal nutrient pool, characterized in that: It includes at least two nutrient solution tanks and a recycling tank (4) arranged in a stepped manner. A siphon is provided between adjacent nutrient solution tanks and between the lowest nutrient solution tank and the recycling tank (4). The highest position of the siphon is lower than the highest water storage position of the nutrient solution tank where its inlet end is located. The recycling tank (4) is connected to the highest nutrient solution tank through a circulating water pipe (8). A booster pump (9) is provided on the circulating water pipe (8).
2. The stepped siphon-type tidal nutrient pool according to claim 1, characterized in that: A filter screen (10) is provided at the inlet end of the siphon pipe.
3. The stepped siphon-type tidal nutrient pool according to claim 2, characterized in that: The filter screen (10) has a hemispherical structure and is detachably connected to the inlet end of the siphon tube.
4. The stepped siphon-type tidal nutrient pool according to claim 1, characterized in that: Each nutrient solution tank is equipped with 3 to 8 siphon tubes arranged in parallel and evenly; the diameter of the siphon tubes is 4 to 5 mm.
5. A stepped siphon-type tidal nutrient pool according to claim 1, characterized in that: A humidity sensor (19) is installed in the substrate of the seedling tray (18) in the highest nutrient solution tank. The humidity sensor (19) is connected to the booster pump (9) for control.
6. The stepped siphon tidal nutrient pool according to claim 1, characterized in that: The recycling pool (4) is equipped with a liquid level sensor (11), and the volume of the recycling pool (4) at the lowest position is 1.2 to 1.5 times the volume of a single nutrient solution pool.
7. A stepped siphon-type tidal nutrient pool according to claim 6, characterized in that: The recycling tank (4) is connected to a water pipe (12), and a valve I (13) is installed on the water pipe (12). The liquid level sensor (11) is connected to the valve I (13) for control.
8. A stepped siphon-type tidal nutrient pool according to claim 1, characterized in that: The recycling pool (4) is equipped with a conductivity sensor (14) and an alarm (17), and the conductivity sensor (14) and the alarm (17) are connected in a control manner.
9. A stepped siphon-type tidal nutrient pool according to claim 1, characterized in that: A collection groove (15) is provided on the side of the nutrient solution tank near the siphon pipe end.
10. A stepped siphon-type tidal nutrient pool according to claim 1, characterized in that: The nutrient solution tanks are set to 4-6 levels, and the height difference between adjacent nutrient solution tanks is 100-120mm.