Efficient combined type oxygenation and pollution discharge equipment
By installing a combined aeration device consisting of an impeller and a propeller in a funnel-shaped pond, the problem of insufficient dissolved oxygen in the lower part of the water body was solved, ensuring the uniformity of dissolved oxygen and the efficiency of sewage discharge in the pond, preventing fish from suffocating due to lack of oxygen, and improving the quality of the aquaculture environment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 王健华
- Filing Date
- 2025-06-10
- Publication Date
- 2026-05-19
AI Technical Summary
Existing paddlewheel aerators are ineffective at increasing dissolved oxygen in the lower part of funnel-shaped ponds, leading to water quality deterioration and fish suffocation and death due to lack of oxygen.
The hull and synchronous shaft are arranged side by side, and impellers and propellers are installed. The impellers provide dissolved oxygen to the upper part of the water, and the propellers push oxygen to the lower part of the water. At the same time, the jet thrust of the propellers removes the deposits on the side walls of the pond.
This method ensures sufficient dissolved oxygen throughout the funnel-shaped pond, preventing fish from suffocating and improving the quality of aquaculture and wastewater discharge.
Smart Images

Figure CN224250476U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of aquaculture equipment, and in particular to a high-efficiency composite oxygenation and sewage discharge device. Background Technology
[0002] The funnel-shaped aquaculture pond breaks away from the traditional fishpond design. Through water level pressure difference, it can automatically and to a greater extent discharge fish feces and uneaten feed from the fishpond, ensuring clean production and water quality in the fishpond, and providing the best growth environment for the fish. See the invention patent CN2021104591316 for a funnel-shaped pond ecological cycle aquaculture system.
[0003] Currently, funnel-shaped aquaculture ponds typically use paddlewheel aerators to increase dissolved oxygen levels. The impeller blades of these aerators are partially submerged in water; during rotation, the blades strike the water surface at high speed, creating splashes that introduce large amounts of air into the water, which then dissolves to form dissolved oxygen. The problem is that while this method is effective at increasing dissolved oxygen at the surface of the water in funnel-shaped ponds, dissolved oxygen cannot effectively reach the bottom of the pond, affecting water quality and fish physiology, and even causing fish to suffocate and die from oxygen deprivation. This needs improvement. Utility Model Content
[0004] To address the aforementioned problems, this utility model proposes a high-efficiency composite oxygenation and sewage discharge device.
[0005] The technical solution of this utility model is: a high-efficiency composite oxygenation and sewage discharge device, comprising several hulls arranged side by side, the hulls being made of plastic, a synchronous shaft being connected between the middle of the upper surface of the hulls via a support, a number of impellers being evenly arranged on the synchronous shaft, the impellers being made of plastic, a power source connected to the synchronous shaft being provided on the middle hull, the power source being a geared motor; a horizontal support rod being provided between the ends of the hulls, an oxygenation and sewage discharge device submerged in the water being vertically connected to the horizontal support rod, the horizontal support rod being connected to the end of a square frame bracket, the square frame bracket being fixedly connected to the hull.
[0006] Preferably, the oxygenation and sewage discharge device includes a waterproof motor, a propeller, and an air intake pipe. The oxygenation and sewage discharge device is located in the gap between two adjacent hulls. The waterproof motor is connected to the horizontal support rod via a vertical support rod. The propeller is installed on the outer end of the output shaft of the waterproof motor. An air intake support is provided at the end of the waterproof motor. An air intake hole is provided on the upper part of the air intake support. The lower end of the air intake pipe is connected to the air intake hole. The upper end of the air intake pipe extends upwards out of the hull surface. The upper end is connected to the horizontal support rod via a U-shaped seat. The air intake pipe is limited and fixed by the U-shaped seat. An exhaust hole communicating with the air intake hole is provided on the lower side of the air intake support. The exhaust hole corresponds to the propeller.
[0007] Preferably, the outer side of the propeller is fitted with a cylindrical cage, the inner end of which is fixedly connected to a waterproof motor. The cylindrical cage is composed of evenly arranged annular bodies and longitudinal ribs.
[0008] Preferably, the front and rear ends of the waterproof motor are connected to vertical support rods, the front and rear vertical rods are arranged parallel to each other, and a number of adjustment holes are evenly provided on the vertical support rods along the length direction. There are two horizontal support rods, and a connecting hole corresponding to the position of the adjustment hole is provided on the horizontal support rod. A fastening bolt is provided between the adjustment hole and the connecting hole.
[0009] Preferably, the vertical support rod is a square tube rod made of stainless steel, and the cable of the waterproof motor is led out from inside the square tube rod.
[0010] Preferably, impellers are connected to the synchronous shaft between the hulls and to the shaft extending outward from the hull.
[0011] Preferably, the outer surface of the impeller has at least two rings of water-dispensing plates arranged side by side, the water-dispensing plates being connected to the impeller body radially, and the two rings of water-dispensing plates being arranged alternately.
[0012] Preferably, the water-repelling plate is an arc-shaped plate with a plurality of evenly distributed round holes and a reinforcing rib in the middle of the water-repelling plate.
[0013] The beneficial technical effects of this utility model are:
[0014] (1) This utility model installs a synchronous shaft and an impeller between the side-by-side hulls to provide dissolved oxygen to the upper part of the water body by using an impeller-type waterwheel aeration method. At the same time, an air intake pipe is installed between the hulls and inserted into the lower part of the water body. The propeller is driven by a motor to rotate and push the oxygen introduced by the air intake pipe evenly to the lower part of the pond to provide dissolved oxygen to the lower part of the water body. This provides sufficient dissolved oxygen to the funnel-shaped aquaculture pond as a whole, combining underwater water-pushing aeration and waterwheel aeration into one, ensuring the aquaculture quality of the funnel-shaped pond and avoiding the phenomenon of fish suffocation and death due to insufficient dissolved oxygen.
[0015] (2) While the waterproof motor drives the propeller to rotate and dissolve oxygen, the jet thrust generated can also impact the fish feces and uneaten food attached to the side wall of the funnel-shaped pond, so that they can slide down to the bottom of the pond efficiently and be discharged, further improving the sewage discharge effect of the funnel-shaped pond. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;
[0017] Figure 2 yes Figure 1 A magnified view of a portion of the image;
[0018] Figure 3This is a schematic diagram of the main structure of this utility model;
[0019] Figure 4 This is a top view of the structure of this utility model;
[0020] Figure 5 This is a three-dimensional structural diagram of an oxygenation and sewage discharge device;
[0021] Figure 6 This is a schematic diagram of some components of the oxygenation and sewage discharge device.
[0022] In the diagram, 1. Hull, 11. Horizontal strut, 12. Support, 2. Synchronous shaft, 3. Impeller, 31. Water deflector, 32. Circular hole, 33. Reinforcing rib, 4. Power source, 5. Waterproof motor, 51. Output shaft, 52. Propeller, 53. Cylindrical cage, 54. Air intake support, 55. Air intake hole, 56. Exhaust hole, 6. Vertical strut, 61. Adjustment hole, 62. Fastening bolt, 63. U-shaped seat, 7. Air intake pipe, 8. Cable. Detailed Implementation
[0023] Example 1, see appendix Figure 1-4 A high-efficiency composite aeration and sewage discharge device includes several hulls 1 arranged side by side. A synchronous shaft 2 is connected between the middle of the upper surface of each hull 1 via a support 12. Several impellers 3 are evenly distributed on the synchronous shaft 2. Impellers 3 are connected to the synchronous shaft 2 between the hulls 1 and to the shafts extending outwards from the synchronous shaft 1. A power source 4, connected to the synchronous shaft 2, is located on the middle hull 1. The power source is a geared motor with a sealed protective cover. The power source 4 drives the synchronous shaft 2 to rotate, and the impellers 3 on the synchronous shaft 2 rotate synchronously accordingly. A horizontal support rod 11 is provided between the ends of the hulls 1. An aeration and sewage discharge device, submerged in the water, is vertically connected to the horizontal support rod 11 and inserted into the bottom of the pond.
[0024] The outer surface of the impeller 3 has at least two rings of water-dispelling plates 31 arranged side by side. The two rings of water-dispelling plates 31 are arranged alternately, which can alternately dispel water and improve the water dispelling efficiency.
[0025] The water-dispelling plate 31 is an arc-shaped plate with several evenly spaced round holes 32. By setting the round holes 32, the water-dispelling plate 31 can move the water to generate more water splashes, thereby improving the dissolved oxygen effect. A reinforcing rib is provided in the middle of the water-dispelling plate.
[0026] The high-efficiency composite aeration and sewage discharge equipment in this embodiment is mainly designed for funnel-shaped ponds. The size of the impeller 3 and the water pushing power are selected according to the applicability of the size of the funnel-shaped pond.
[0027] Example 2, see appendix Figure 1-35-6. This embodiment is basically the same as Embodiment 1, and the similarities will not be repeated. The difference is that the oxygenation and sewage discharge device includes a waterproof motor 5, a propeller 52, and an air inlet pipe 7. The waterproof motor 5 is connected to the horizontal support rod 11 through the vertical support rod 6. The propeller 52 is installed at the outer end of the output shaft 51 of the waterproof motor 5. The propeller 52 is driven to rotate at high speed by the motor. An air inlet support 54 is provided at the end of the waterproof motor 5. The upper part of the air inlet support 54 is provided with an air inlet hole 55. The lower end of the air inlet pipe 7 is connected to the air inlet hole 55, and the upper end is connected to the horizontal support rod 11 through a U-shaped seat 63. The U-shaped seat 63 limits the air inlet pipe 7 while not affecting the vertical sliding of the air inlet pipe 7, so that it can be adjusted in height. The lower side of the air inlet support 54 is provided with an exhaust hole 56 that communicates with the air inlet hole 55. The exhaust hole 56 corresponds to the propeller 52.
[0028] While the motor drives the propeller 52 to rotate and generate thrust, a certain suction force is generated in the water area near the exhaust port 56. Air can enter the air intake support 54 from the upper end of the air intake pipe 7 and be discharged from the exhaust port 56 at the lower part of the air intake support 54. It is then evenly pushed into the water by the thrust generated by the propeller 52.
[0029] An air pump can also be installed on the upper part of the air intake pipe 7 to assist in air intake and ensure dissolved oxygen levels.
[0030] A cylindrical cage 53 is fitted around the outside of the propeller 52. The inner end of the cylindrical cage 53 is fixedly connected to the waterproof motor 5. The cylindrical cage is used to protect the propeller 52 and prevent debris from getting tangled on the propeller 52 and getting stuck, thus ensuring that the equipment can operate efficiently and stably.
[0031] The front and rear ends of the waterproof motor 5 are connected to vertical support rods 6. Several adjustment holes 61 are evenly provided on the vertical support rods 6 along the length direction. There are two horizontal support rods 11. The two vertical support rods 6 and the two horizontal support rods 11 can provide stable support for the waterproof motor 5 and improve its stability in providing dissolved oxygen power. The horizontal support rods 11 are provided with connecting holes corresponding to the positions of the adjustment holes 61. Fastening bolts 62 are provided between the adjustment holes 61 and the connecting holes.
[0032] Aligning and fixing the adjustment holes 61 at different heights of the vertical support rod 6 with the connecting holes allows for adjustment of the overall height of the oxygenation and sewage discharge device, enabling convenient adjustment of dissolved oxygen depth according to aquaculture needs.
[0033] The vertical support rod 6 is a square tube rod, and the cable 8 of the waterproof motor 5 is led out from inside the square tube rod. This design can protect the cable 8 and prevent the cable 8 from getting tangled or scratched, which could lead to leakage.
[0034] This embodiment uses a paddlewheel-type waterwheel to provide dissolved oxygen to the upper part of the water body. An air intake pipe 7 is installed between the hulls 1 and inserted into the lower part of the water body. The propeller 52 is driven by a motor to rotate, and the oxygen introduced by the air intake pipe 7 is evenly pushed to the lower part of the pond to provide dissolved oxygen to the lower part of the water body. This provides sufficient dissolved oxygen to the entire funnel-shaped aquaculture pond, ensuring the quality of aquaculture and preventing fish from suffocating and dying due to insufficient dissolved oxygen. At the same time, the jet thrust generated by the propeller 52 can also impact the fish feces and uneaten feed attached to the side wall of the funnel-shaped pond, allowing them to slide down to the bottom of the pond efficiently and be discharged, further improving the sewage discharge effect of the funnel-shaped pond.
Claims
1. A high-efficiency composite oxygenation and sewage discharge device, characterized in that: It includes several hulls arranged side by side, with a synchronous shaft connected between the middle of the upper surface of the hulls via supports. Several impellers are evenly distributed on the synchronous shaft, and a power source connected to the synchronous shaft is located on the middle hull. A horizontal support rod is provided between the ends of the hulls, and an oxygenation and sewage discharge device submerged in the water is vertically connected to the horizontal support rod.
2. The high-efficiency composite oxygenation and sewage discharge equipment according to claim 1, characterized in that: The oxygenation and sewage discharge device includes a waterproof motor, a propeller, and an air intake pipe; The waterproof motor is connected to the horizontal support rod via a vertical support rod. The propeller is installed on the outer end of the output shaft of the waterproof motor. An air intake support is provided at the end of the waterproof motor. The upper part of the air intake support has an air intake hole. The lower end of the air intake pipe is connected to the air intake hole, and the upper end is connected to the horizontal support rod via a U-shaped seat. The lower side of the air intake support has an exhaust hole that communicates with the air intake hole, and the exhaust hole corresponds to the propeller.
3. The high-efficiency composite oxygenation and sewage discharge equipment according to claim 2, characterized in that: The propeller is fitted with a cylindrical cage on its outer side, and the inner end of the cylindrical cage is fixedly connected to a waterproof motor.
4. The high-efficiency composite oxygenation and sewage discharge equipment according to claim 2, characterized in that: The waterproof motor is connected to vertical support rods at both the front and rear ends. Several adjustment holes are evenly provided on the vertical support rods along the length direction. There are two horizontal support rods. The horizontal support rods are provided with connecting holes that correspond to the positions of the adjustment holes. Fastening bolts are provided between the adjustment holes and the connecting holes.
5. The high-efficiency composite oxygenation and sewage discharge equipment according to claim 4, characterized in that: The vertical support rod is a square tube rod, and the cable of the waterproof motor is led out from inside the square tube rod.
6. The high-efficiency composite oxygenation and sewage discharge equipment according to claim 1, characterized in that: Impellers are connected to the synchronous shaft between the hulls and to the shaft extending outward from the hull.
7. The high-efficiency composite oxygenation and sewage discharge equipment according to claim 1, characterized in that: The impeller has at least two rings of water-dispelling plates evenly distributed side by side on its outer surface, with the two rings of water-dispelling plates arranged alternately.
8. The high-efficiency composite oxygenation and sewage discharge equipment according to claim 7, characterized in that: The water-repelling plate is an arc-shaped plate with several evenly distributed round holes and a reinforcing rib in the middle.