A soilless culture water and fertilizer integrated device suitable for plateau areas

Abstract

The utility model relates to sewage cultivation device technical field, concretely is a kind of soilless culture water and fertilizer integration device suitable for plateau area. Including cultivation water tank and water and fertilizer conveying part, the water and fertilizer conveying part includes the connecting pipe and the conveying pipe of rotation connection, the conveying pipe is set to the inside bottom of cultivation water tank, the top of conveying pipe is equipped with water slit, the inside of conveying pipe is provided with spiral conveying paddle, the connecting pipe is set to inverted U type, and the top of connecting pipe is higher than cultivation water tank inside water level. Conveying pipe is provided with spiral conveying paddle, actively promotes water and fertilizer flow, in combination with top water slit design, realize the laminar flow type diffusion of water and fertilizer, prevent deposition, enhance root system area nutrient coverage uniformity.

Description

Technical Field

[0001] This utility model relates to the technical field of wastewater cultivation devices, specifically a soilless cultivation water and fertilizer integrated device suitable for plateau regions. Background Technology

[0002] Due to the unique geographical and climatic conditions of high-altitude regions (such as low oxygen, strong ultraviolet radiation, and large diurnal temperature variations), traditional soil cultivation methods face problems such as long crop growth cycles, low nutrient absorption efficiency, and insufficient water resource utilization. While soilless cultivation technology can avoid the obstacles of continuous cropping in soil, it still faces challenges in the high-altitude environment, including uneven water and fertilizer distribution, insufficient root oxygen supply, and poor system stability. Existing integrated water and fertilizer systems mostly rely on gravity or pressure irrigation, which is prone to large fluctuations in water flow, nutrient solution sedimentation, and insufficient root immersion in the low-pressure environment of high altitudes, thus limiting crop growth. In addition, high-altitude facility agriculture often faces practical problems such as unstable energy supply and inconvenient equipment maintenance, urgently requiring an efficient and reliable water and fertilizer supply solution for soilless cultivation adapted to high-altitude environments. Utility Model Content

[0003] To address the aforementioned problems, this utility model provides a soilless cultivation fertigation device suitable for plateau regions.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a soilless cultivation water and fertilizer integrated device suitable for plateau areas, including a cultivation water tank and a water and fertilizer conveying part. The water and fertilizer conveying part includes a rotatably connected connecting pipe and a conveying pipe. The conveying pipe is set at the bottom of the inner side of the cultivation water tank. A water outlet slit is opened at the top of the conveying pipe. A spiral conveying paddle is set inside the conveying pipe. The connecting pipe is arranged in an inverted U-shape, and the top of the connecting pipe is higher than the water level inside the cultivation water tank.

[0005] As an optimization, the top of the cultivation water tank is open, the bottom of the cultivation water tank is narrowed into a V shape, the conveying pipe is laid along the length of the cultivation water tank, and a filter screen is provided on the upper side of the conveying pipe, with the filter screen arranged adjacent to the conveying pipe.

[0006] As an optimization, the bottom inner side of the cultivation water tank is provided with an arc-shaped receiving groove, and the delivery pipe is laid in the receiving groove; One end of the conveying pipe is connected to a drive motor, which is used to drive the conveying pipe to rotate.

[0007] As an optimization, a gap is left between the filter screen and the upper side of the delivery pipe.

[0008] As an optimization, an auxiliary motor is provided at one end of the spiral conveyor paddle, which is used to drive the spiral conveyor paddle to rotate and push the water and fertilizer in the conveying pipe to flow outward.

[0009] As an optimization, a drain outlet is provided on the lower side of the cultivation water tank, and the drain outlet is detachably equipped with a sealing cover.

[0010] As an optimization, one end of the connecting pipe is connected to the main water and fertilizer pipeline, and the connecting pipe is equipped with a liquid pump; The other end of the connecting pipe is rotatably sealed to the delivery pipe.

[0011] The beneficial effects of this plan are as follows: A spiral conveying paddle is installed inside the delivery pipe to actively promote the flow of water and fertilizer. Combined with the top water outlet slit design, it realizes the laminar diffusion of water and fertilizer, prevents sedimentation, and enhances the uniformity of nutrient coverage in the root area. A gap is maintained between the filter screen and the delivery pipe to prevent roots or impurities from clogging the water outlet slit; the bottom of the V-shaped water tank is combined with an arc-shaped receiving groove, which facilitates the sedimentation and concentration of impurities, and can be easily cleaned through the drain outlet, resulting in low maintenance costs; the swinging delivery pipe can rinse the filter screen through the water outlet slit. Attached Figure Description

[0012] Figure 1 This is an axonometric view of the present invention.

[0013] Figure 2 This is a schematic diagram of the front view of this utility model.

[0014] Figure 3 This utility model Figure 2 A schematic diagram of the AA cross-section structure.

[0015] Figure 4 This utility model Figure 3 A schematic diagram of the BB cross-section structure.

[0016] Figure 5 This utility model Figure 4 A magnified structural diagram of part C.

[0017] Figure 6 This utility model Figure 4 A magnified structural diagram of part D.

[0018] Figure 7 This is a schematic diagram of the conveying pipe axis of this utility model.

[0019] Among them, 1. cultivation water tank, 2. conveying pipe, 3. connecting pipe, 4. screw conveyor, 5. water outlet slit, 6. filter screen, 7. interval, 8. drain outlet, 9. water and fertilizer main pipeline, 10. liquid pump. Detailed Implementation

[0020] like Figures 1-7As shown, a hydroponic fertigation device suitable for high-altitude areas includes a cultivation water tank 1 and a water and fertilizer delivery section. The water and fertilizer delivery section includes a rotatably connected connecting pipe 3 and a delivery pipe 2. The delivery pipe 2 is located at the bottom inner side of the cultivation water tank 1. A water outlet slit 5 is opened at the top of the delivery pipe 2. A spiral delivery paddle 4 is installed inside the delivery pipe 2. The connecting pipe 3 is arranged in an inverted U-shape, and the top of the connecting pipe 3 is higher than the water level inside the cultivation water tank 1.

[0021] The cultivation water tank 1 is made of corrosion-resistant and UV-resistant polypropylene or high-density polyethylene with a thickness of ≥5mm. The volume can be customized according to the cultivation scale (e.g., 500L-2000L). The top opening of the tank facilitates crop planting and management, and the bottom structure is reinforced for load-bearing capacity and stability.

[0022] The delivery pipe 2 is made of UPVC or 304 stainless steel, with a diameter of 50-100mm and a wall thickness of 2-3mm. The top water outlet slit 5 has a width of 1-2mm and is evenly distributed along the axial direction of the pipe to achieve laminar flow of water and fertilizer, avoiding turbulent impact on the root system.

[0023] The screw conveyor 4 is made of nylon or food-grade stainless steel, and the blade pitch is 1.2-1.5 times the pipe diameter. It generates axial thrust through rotation to prevent water and fertilizer from settling.

[0024] The inverted U-shaped design of connecting pipe 3 should be 20-30cm higher than the highest liquid level of cultivation water tank 1 to stabilize water delivery using the siphon principle and avoid air resistance in high-altitude, low-pressure environments. A rotary sealing joint (using a mechanical seal or rubber ring seal) is used between connecting pipe 3 and delivery pipe 2 to ensure no leakage during rotation.

[0025] like Figure 3 As shown, the top of the cultivation water tank 1 is open, the bottom of the cultivation water tank 1 is narrowed into a V shape, the conveying pipe 2 is laid along the length of the cultivation water tank 1, and a filter screen 6 is provided on the upper side of the conveying pipe 2, with the filter screen 6 being arranged adjacent to the conveying pipe 2.

[0026] The cultivation tank 1 has a side tilt angle of 30°-45°, which facilitates the accumulation of impurities towards the central drain outlet 8. The bottom inner wall is smoothed to reduce residue.

[0027] The filter screen 6 is made of 316 stainless steel woven mesh with a pore size of 0.5-1mm. It covers the top of the conveying pipe 2 to intercept roots and solid particles. The filter screen 6 is spaced 5-10mm from the conveying pipe 2 to avoid contact wear and to allow for rinsing space.

[0028] like Figure 4 As shown, the bottom inner side of the cultivation water tank 1 is provided with an arc-shaped receiving groove, and the conveying pipe 2 is laid in the receiving groove; One end of the conveying pipe 2 is connected to a drive motor, which is used to drive the conveying pipe 2 to rotate.

[0029] The depth of the receiving groove is at least half the diameter of the conveying pipe 2, and the radius of the arc matches that of the conveying pipe 2, serving to fix and protect it and prevent pipe displacement. The drive motor is a waterproof low-speed stepper motor (such as IP67 protection level), with a speed of 5-15 rpm and a torque ≥10 N·m. It is directly connected to the end of the conveying pipe 2 through a coupling to achieve slow rotation of the pipe and assist in the cleaning of impurities.

[0030] like Figure 5 As shown, there is a gap 7 between the filter screen 6 and the upper side of the conveying pipe 2.

[0031] The spacing 7 prevents water from being blocked from the outlet slit 5 due to pressure. Furthermore, spacing 7 allows the filter screen 6 to be backwashed through the outlet slit 5 when the delivery pipe 2 rotates, dislodging attached impurities. The size of spacing 7 must be larger than the typical particle size of the impurities to prevent clogging.

[0032] like Figure 6 As shown, an auxiliary motor is provided at one end of the spiral conveyor 4. The auxiliary motor is used to drive the spiral conveyor 4 to rotate and push the water and fertilizer in the conveying pipe 2 to flow outward.

[0033] The auxiliary motor is a low-voltage DC motor (24V) with a power of 50-100W. It is connected to the shaft end of the propeller 4 via a gearbox, and its speed is adjustable (50-200rpm) to adapt to water and fertilizer of different viscosities. The rotation of the propeller generates axial pressure, which makes the water and fertilizer evenly transported from the connecting pipe 3 to the outlet slit 5. It is especially suitable for overcoming fluid resistance under low air pressure at high altitudes and promotes the full release of water and fertilizer.

[0034] like Figure 5 As shown, a drain outlet 8 is provided on the lower side of the cultivation water tank 1, and the drain outlet 8 is detachably equipped with a sealing cover.

[0035] When cleaning the cultivation water tank 1, drainage and sewage are discharged through the drain outlet 8. The bottom of the drain outlet 8 is adjacent to the upper surface of the filter screen 6.

[0036] like Figure 4 As shown, one end of the connecting pipe 3 is connected to the main water and fertilizer pipeline 9, and the connecting pipe 3 is equipped with a liquid pump 10. The other end of the connecting pipe 3 is rotatably sealed to the conveying pipe 2.

[0037] When using the device, place the cultivation water tank 1 horizontally in the cultivation area, connect the water and fertilizer main pipeline 9 to the inlet of the liquid pump 10, and ensure that the top of the inverted U-shaped connecting pipe 3 is higher than the preset maximum water level of the water tank. Place the cultivation basket inside the cultivation water tank 1. Water and nutrient solution are injected into the water tank through the main water and fertilizer pipeline 9, and the liquid level does not exceed the bottom of the cultivation basket. Turn on the liquid pump 10 to pump water and fertilizer from the main pipeline through the connecting pipe 3 into the delivery pipe 2; simultaneously start the auxiliary motor to drive the screw conveyor 4 to promote the flow of water and fertilizer. Water and fertilizer seep out evenly through the top slit of the delivery pipe 2 and soak the root system through the filter screen 6; the flow rate of the liquid pump 10 and the speed of the propeller can be adjusted according to the needs of the crop.

[0038] During subsequent use, the cultivation water tank 1 needs to be cleaned regularly. When cleaning, turn on the drive motor to slowly rotate the delivery pipe 2 and use the narrow water flow to backwash the filter screen 6; open the drain outlet 8 to discharge the sediment and impurities.

[0039] The above-described specific embodiments are merely specific examples of this utility model. The patent protection scope of this utility model includes, but is not limited to, the product form and style of the above-described specific embodiments. Any soilless cultivation water and fertilizer integrated device suitable for plateau areas that conforms to the claims of this utility model, and any appropriate changes or modifications made to it by a person skilled in the art, shall fall within the patent protection scope of this utility model.

Claims

1. A hydroponic fertigation device suitable for soilless cultivation in plateau regions, characterized in that: It includes a cultivation water tank (1) and a water and fertilizer conveying part. The water and fertilizer conveying part includes a rotatably connected connecting pipe (3) and a conveying pipe (2). The conveying pipe (2) is located at the bottom of the inner side of the cultivation water tank (1). A water outlet slit (5) is opened at the top of the conveying pipe (2). A spiral conveying paddle (4) is installed inside the conveying pipe (2). The connecting pipe (3) is arranged in an inverted U-shape, and the top of the connecting pipe (3) is higher than the water level inside the cultivation water tank (1).

2. The hydroponic fertigation device for soilless cultivation in plateau regions according to claim 1, characterized in that: The top of the cultivation water tank (1) is open, and the lower part of the cultivation water tank (1) is narrowed into a V shape. The conveying pipe (2) is laid along the length of the cultivation water tank (1). A filter screen (6) is provided on the upper side of the conveying pipe (2), and the filter screen (6) is arranged adjacent to the conveying pipe (2).

3. The hydroponic fertigation device for soilless cultivation in plateau regions according to claim 1, characterized in that: The cultivation water tank (1) has an arc-shaped receiving groove at the bottom of its inner side, and the conveying pipe (2) is laid in the receiving groove; One end of the conveying pipe (2) is connected to a drive motor, which is used to drive the conveying pipe (2) to rotate.

4. The hydroponic fertigation device for soilless cultivation in plateau regions according to claim 2, characterized in that: A gap (7) is left between the filter screen (6) and the upper side of the conveying pipe (2).

5. The hydroponic fertigation device for soilless cultivation in plateau regions according to claim 1, characterized in that: An auxiliary motor is provided at one end of the spiral conveyor (4), which is used to drive the spiral conveyor (4) to rotate and push the water and fertilizer in the conveying pipe (2) to flow outward.

6. The hydroponic fertigation device for soilless cultivation in plateau regions according to claim 1, characterized in that: The cultivation water tank (1) has a drain outlet (8) on the lower side, and the drain outlet (8) is detachably equipped with a sealing cover.

7. The hydroponic fertigation device for soilless cultivation in plateau regions according to claim 1, characterized in that: One end of the connecting pipe (3) is connected to the main water and fertilizer pipeline (9), and the connecting pipe (3) is equipped with a liquid pump (10); The other end of the connecting pipe (3) is rotatably sealed to the conveying pipe (2).

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