Paddy field ring ditch oxygenation floating platform

Abstract

The utility model discloses a kind of paddy field ring ditch oxygenation floating platform, it is related to oxygenation floating platform technical field, including oxygenation motor, the surface circumference equidistance fixed mounting of oxygenation motor has three float pole, each float pole is equipped with float, the float is used for the floating of the equipment, rotating cover is fixedly installed in oxygenation motor lower end through output shaft, the circumference surface of rotating cover is equipped with impeller, oxygenation motor lower end is equipped with flow guide mechanism, in the present application, by the synergistic effect of the curved surface of conical bottom flow guide cover with the installation of impeller 10~20 ° angle of inclination, traditional vertical down flow is forcedly converted into horizontal circulation, reduce silt stirring amount, completely avoid the risk of water quality deterioration caused by organic matter release of bottom mud;Meanwhile, the through-hole bidirectional balance water flow pressure, eliminate local negative pressure suction silt hidden danger, and accelerate middle layer water body circulation replenishment.The full-wrapping design (aperture <5mm) of the stainless steel fine-hole protective net to impeller reduces the rate of fish and shrimp entanglement damage.

Description

Technical Field

[0001] This utility model relates to the field of oxygenation floating platform technology, and in particular to an oxygenation floating platform for paddy field ring ditches. Background Technology

[0002] In integrated rice-fish farming, aerators are crucial for increasing dissolved oxygen levels in the surrounding ditches. However, traditional aerators exhibit significant drawbacks in shallow paddy field ditches (generally ≤1.5 meters deep). According to feedback from several rice-fish co-culture bases, after six hours of continuous operation, the powerful agitation of paddlewheel or waterwheel aerators stirs up silt from the bottom of the ditches, causing water turbidity to increase by over 60% and transparency to plummet to below 20 cm, severely inhibiting phytoplankton photosynthesis. Even more seriously, the stirred-up sediment releases large amounts of organic matter and ammonia nitrogen; measured nitrite concentrations surged to over 0.3 mg / L within 24 hours, triggering acute poisoning in fish and shrimp and reducing survival rates by approximately 15%.

[0003] Especially in small-scale, multi-species rotational farming scenarios (such as shrimp-crab-fish rotation), traditional aerators, lacking isolation design, allow pathogens and toxins from residual sludge to cross-contaminate different farming batches, leading to a 30% increase in disease incidence in subsequently stocked fry. Cleaning and maintenance are equally challenging: after each shutdown, manual cleaning of aquatic plants and sludge entangled in the impeller is required, with each unit taking over 30 minutes to clean, affecting effective aeration time by more than 2 hours per day. After-sales data shows that 52% of equipment failures originate from the bottom impeller being jammed by fibrous impurities or bearing corrosion, with 90% of these occurring in low-lying areas with deep sludge. These pain points severely restrict the efficiency of rice-fish farming, urgently requiring an aeration equipment that addresses the root causes of bottom sludge disturbance and maintenance problems through structural solutions. Utility Model Content

[0004] Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a floating platform for aeration in paddy field ring ditches, which solves the technical problem that after 6 hours of continuous operation of impeller or waterwheel aerators, their strong agitation will stir up the silt at the bottom of the ring ditch, causing the water turbidity to increase by more than 60% and the transparency to drop sharply to below 20cm, which seriously inhibits the photosynthesis of phytoplankton.

[0006] Technical solution

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A floating platform for aeration in a paddy field ring ditch includes an aeration motor. Three float support rods are fixedly installed at equal intervals around the surface of the aeration motor. Each float support rod is equipped with a float for floating the device. A rotating cover is fixedly installed at the lower end of the aeration motor via an output shaft. An impeller is provided on the circumferential surface of the rotating cover. A flow guiding mechanism is provided at the lower end of the aeration motor. A protective mechanism is provided inside the flow guiding mechanism. The flow guiding and protective mechanisms are used to change the water flow in the paddy field ring ditch and to protect the device, respectively.

[0009] Preferably, the impeller is installed at an angle of 10~20° on the rotating cover, the flow guiding mechanism includes a connecting rod, and a bottom flow guiding cover is fixedly installed on the side end of the connecting rod. A through hole is opened through the bottom flow guiding cover, and the bottom flow guiding cover is conical in shape, with its large diameter facing down and its small diameter located below the rotating cover.

[0010] Preferably, a U-shaped mounting block is fixedly installed on the oxygenation motor, an L-shaped hanger is fitted on the U-shaped mounting block, an installation through hole is opened on the L-shaped hanger, a locking screw is slidably installed through the installation through hole of the L-shaped hanger, the L-shaped hanger is threadedly fixed on the U-shaped mounting block by the locking screw, a connecting rod is fixedly installed on the L-shaped hanger, and the bottom guide cover is fixedly installed on the connecting rod.

[0011] Preferably, the protective mechanism includes a stainless steel fine-mesh protective mesh, which is fixedly installed on an L-shaped hanger by bolts.

[0012] The beneficial effects of the technical solutions provided in this application include at least the following:

[0013] In this novel design, the 10-20° angled installation of the impeller and the synergistic effect of the curved surface of the conical bottom guide shield forcefully transform the traditional vertical downward water flow into a horizontal circulation, reducing the amount of sludge stirred up and completely avoiding the risk of water quality deterioration caused by the release of organic matter from the bottom sediment. Simultaneously, the bidirectional through-holes balance the water flow pressure, eliminating the potential for localized negative pressure sludge suction and accelerating the circulation and replenishment of the middle water layer. Combined with the stainless steel fine-mesh protective mesh that fully encloses the impeller (pore diameter <5mm), the rate of fish and shrimp entanglement and damage is reduced. Attached Figure Description

[0014] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0015] Figure 1 This is a structural diagram of the entire utility model;

[0016] Figure 2This is a structural diagram of the oxygenation motor of this utility model;

[0017] Figure 3 This is a structural diagram of the stainless steel fine-mesh protective mesh of this utility model;

[0018] Figure 4 This is a structural diagram of the bottom air guide cover of this utility model;

[0019] Figure 5 This utility model Figure 2 Enlarged view of the structure at point A.

[0020] Legend: 1. Aeration motor; 2. U-shaped mounting block; 3. Locking screw; 4. L-shaped hanger; 5. Connecting rod; 6. Bottom guide cover; 7. Through hole; 8. Stainless steel fine-mesh protective mesh; 9. Mounting perforation; 10. Float support rod; 11. Float; 12. Rotating cover; 13. Impeller. Detailed Implementation

[0021] This application provides a floating platform for aeration in paddy field ring ditches, which effectively solves the technical problem that after 6 hours of continuous operation of impeller or waterwheel aerators, their strong agitation will stir up the silt at the bottom of the ring ditch, causing the water turbidity to increase by more than 60% and the transparency to drop sharply to below 20cm, which seriously inhibits the photosynthesis of phytoplankton.

[0022] Example

[0023] like Figure 1 - Figure 5 As shown, the technical solution in this application aims to effectively solve the problem that after 6 hours of continuous operation of a paddlewheel or waterwheel aerator, its strong agitation stirs up the silt at the bottom of the ring ditch, causing the water turbidity to increase by more than 60% and the transparency to drop sharply to below 20cm, severely inhibiting phytoplankton photosynthesis. The overall idea is as follows:

[0024] To address the problems existing in the prior art, this utility model provides a floating platform for aeration in paddy field ring ditches, including an aeration motor 1. Three float support rods 10 are fixedly installed equidistantly on the circumference of the surface of the aeration motor 1, and each float support rod 10 is equipped with a float 11, which is used for the floating of the equipment.

[0025] A rotating cover 12 is fixedly installed at the lower end of the aeration motor 1 via the output shaft. An impeller 13 is provided on the circumferential surface of the rotating cover 12. A flow guiding mechanism is provided at the lower end of the aeration motor 1. A protective mechanism is provided inside the flow guiding mechanism. The flow guiding and protective mechanisms are used to change the water flow in the paddy field ring ditch and to protect the device, respectively.

[0026] The impeller 13 is mounted on the rotating cover 12 at an angle of 10~20°, which allows for a gentler aerodynamic surface, reduces the downward water push, and enhances the horizontal / sloping upward water flow. The impeller 13 has a large width and a relatively small diameter, which increases the horizontal water stirring area and reduces the downward penetration depth.

[0027] The flow guiding mechanism includes a connecting rod 5, with a bottom flow guide 6 fixedly installed on the side end of the connecting rod 5. A through hole 7 is provided on the bottom flow guide 6. The bottom flow guide 6 is conical in shape, with its large diameter facing down and its small diameter located below the rotating cover 12. It is made of lightweight rigid material (such as fiberglass or PP plastic). The inner wall of the bottom flow guide 6 is a smooth curved surface at a specific angle (forming an angle of 30 to 45 degrees with the horizontal plane), which can guide the water flow to diffuse horizontally or obliquely upward.

[0028] A U-shaped mounting block 2 is fixedly installed on the oxygenation motor 1. An L-shaped hanger 4 is fitted on the U-shaped mounting block 2. An installation hole 9 is opened on the L-shaped hanger 4. A locking screw 3 is slidably installed through the installation hole 9 of the L-shaped hanger 4. The L-shaped hanger 4 is threadedly fixed on the U-shaped mounting block 2 by the locking screw 3. A connecting rod 5 is fixedly installed on the L-shaped hanger 4. The bottom guide shroud 6 is fixedly installed on the connecting rod 5.

[0029] The protective mechanism includes a stainless steel fine-mesh protective net 8, which is fixedly installed on the L-shaped hanger 4 by bolts. The stainless steel fine-mesh protective net 8 is fitted on the outer surface of the rotating cover 12, and its surface aperture is <5mm, thereby preventing fish and shrimp from entering the dangerous area.

[0030] The bottom surface of the device’s bottom guide shroud 6 has a smooth edge, and it maintains a gap of at least 20 to 30 cm from the bottom mud within the paddy field ditch.

[0031] Working principle:

[0032] Step 1: Buoyancy Positioning and Power Activation

[0033] When the aeration motor 1 starts, it drives the rotating cover 12 at the end of the output shaft to rotate, which in turn drives the impeller 13 to rotate synchronously. The three circumferentially distributed floats 11 provide stable buoyancy through the float support rods 10, so that the whole machine is suspended in the water, ensuring that the lowest point of the bottom guide cover 6 is kept at a safe distance of 20-30cm from the bottom of the ditch, and avoiding contact between mechanical parts and bottom mud.

[0034] Step 2: Horizontal aeration and water flow guidance

[0035] Impeller 13 rotates at a small angle of 10°~20°, outputting water primarily through horizontal radiation and secondarily through upward oblique projection.

[0036] Water splash oxygenation: The oblique water flow is thrown to the water surface to form splash water, which greatly increases the gas-liquid contact area and achieves efficient dissolved oxygenation;

[0037] Bottom diversion: The downward flow of water is intercepted by the six large-diameter cone-shaped bottom diversion hoods facing downwards, and is forcibly transformed into horizontal circulation through the smooth diversion surface of 30°~45°, which promotes the circulation of water in the ditch;

[0038] Pressure balance: The flow guide shroud through hole 7 regulates the water flow in both directions, replenishing the middle layer of water to the impeller 13 suction area and improving circulation efficiency.

[0039] Step 3: Dynamic Adjustment and Safety Protection

[0040] Height Adaptability: By adjusting the position of the locking screw 3 on the U-shaped mounting block 2, the gap between the L-shaped hanger 4 and the bottom guide shroud 6 and the bottom can be changed to adapt to water level fluctuations or changes in bottom sediment thickness.

[0041] Biological protection: 8 stainless steel fine-mesh protective net with aperture <5mm, fully enclosed rotating cover 12, completely isolates fish and shrimp from contact with high-speed impeller 13, and simultaneously prevents aquatic plants from getting tangled.

[0042] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A paddy field ring ditch oxygenation floating platform, comprising an oxygenation motor (1), wherein three float support rods (10) are fixedly installed at equal intervals on the surface of the oxygenation motor (1), and each float support rod (10) is provided with a float (11), wherein the float (11) is used for the floating of the oxygenation floating platform; Its features are: The lower end of the oxygenation motor (1) is fixedly mounted with a rotating cover (12) via an output shaft. The circumferential surface of the rotating cover (12) is provided with an impeller (13). The lower end of the oxygenation motor (1) is provided with a flow guiding mechanism, and a protective mechanism is provided inside the flow guiding mechanism.

2. The floating platform for oxygenation in paddy field ring ditches according to claim 1, characterized in that: The impeller (13) is mounted on the rotating cover (12) at an angle of 10~20°.

3. The floating platform for aeration in paddy field ring ditches according to claim 2, characterized in that: The flow guiding mechanism includes a connecting rod (5), and a bottom flow guide cover (6) is fixedly installed on the side end of the connecting rod (5). A through hole (7) is provided on the bottom flow guide cover (6).

4. The floating platform for oxygenation in paddy field ring ditches according to claim 3, characterized in that: The bottom guide shield (6) is cone-shaped, with its large diameter facing down and its small diameter located below the rotating shield (12).

5. The floating platform for oxygenation in paddy field ring ditches according to claim 4, characterized in that: A U-shaped mounting block (2) is fixedly installed on the oxygenation motor (1), and an L-shaped hanger (4) is fitted on the U-shaped mounting block (2).

6. The floating platform for oxygenation in paddy field ring ditches according to claim 5, characterized in that: The L-shaped hanger (4) has an installation hole (9), and a locking screw (3) is slidably installed through the installation hole (9) of the L-shaped hanger (4). The L-shaped hanger (4) is threadedly fixed on the U-shaped mounting block (2) by the locking screw (3).

7. The floating platform for oxygenation in paddy field ring ditches according to claim 6, characterized in that: A connecting rod (5) is fixedly installed on the L-shaped hanger (4), and the bottom guide shield (6) is fixedly installed on the connecting rod (5).

8. The floating platform for oxygenation in paddy field ring ditches according to claim 7, characterized in that: The protective mechanism includes a stainless steel fine-mesh protective mesh (8), which is fixedly installed on an L-shaped hanger (4) by bolts.

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