Gas stripping water inlet assembly and culture pond
By designing an airlift water intake component with a combined U-shaped water inlet pipe and air inlet pipe, the problem of insufficient mixing of water and oxygen was solved, achieving uniform high oxygen content in the water, promoting healthy growth of aquatic products and high-density aquaculture, and improving aquaculture profits.
Patent Information
- Application Number
- CN202423203154.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2034-12-24
AI Technical Summary
The existing airlift water inlet structure has a short mixing pipe, which results in insufficient mixing of water and oxygen when entering the aquaculture pond, leading to uneven oxygen content in the water and affecting the healthy growth of aquatic products and the aquaculture effect.
Design an airlift water intake component that uses a combination of a U-shaped water intake pipe and an air intake pipe. This allows water and oxygen to mix at the bottom of the water intake pipe and then flow upwards. The mixing distance is extended by a buffer section and a dissolved oxygen section. A check valve is installed in the dissolved oxygen section to ensure that the water-oxygen mixture enters the tank evenly.
It achieves uniform high oxygen content in the water, improves the growth rate and health of aquatic products, supports high-density aquaculture, and increases aquaculture profits.
Smart Images
Figure CN223892555U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of aquaculture technology, and in particular to an airlift water intake component and an aquaculture pond. Background Technology
[0002] Fish, shrimp, crabs, and other aquatic products are typically raised in aquaculture ponds within an aquaculture system. Aquaculture requires oxygen and produces uneaten feed and excrement. Heavier waste settles and separates at the bottom of the pond, while lighter floating debris remains on the surface, deteriorating water quality. To create a healthy aquaculture environment, the low-quality, low-oxygen water in the ponds needs to be drained to a purification zone for aeration and oxygenation, resulting in high-quality, high-oxygen water that is then reintroduced into the ponds, thus achieving water circulation.
[0003] Currently, high-quality, high-oxygen water is typically introduced into aquaculture ponds via airlift. This involves installing an airlift water intake device on the outside of the pond to mix oxygen and water before introducing it into the pond. This achieves low-power water intake, reduces energy consumption, and increases the oxygen content of the water. However, the mixing pipes in existing airlift water intake structures are relatively short. Water and oxygen are introduced into the pond before being fully mixed, resulting in uneven oxygen levels in the water, which is detrimental to the healthy growth of aquatic organisms. Utility Model Content
[0004] To address the aforementioned deficiencies in the existing technology, the purpose of this utility model is to provide an airlift water intake component and aquaculture pond, which has a relatively long water-oxygen mixing distance, thereby ensuring that the water and oxygen are fully mixed before being introduced into the aquaculture pond. This guarantees high oxygen content and uniformity in the water, providing sufficient dissolved oxygen for aquatic growth, which is beneficial for improving the growth rate and health status of aquatic products, thereby enabling high-density aquaculture and increasing aquaculture profits.
[0005] The first aspect of this utility model provides an air-lift water inlet assembly, comprising:
[0006] The pool body contains water for aquaculture and has a water inlet area.
[0007] The air-lift assembly includes a water inlet pipe and an air inlet pipe. The water inlet pipe has a U-shaped structure, and the air inlet pipe is connected to the bottom of the water inlet pipe. One end of the water inlet pipe is connected to the water inlet area, and the other end of the water inlet pipe is connected to the inside of the pool body, so that water and oxygen are mixed at the bottom of the water inlet pipe and flow upward a certain distance before being introduced into the pool body.
[0008] In a preferred embodiment, in the first aspect of this utility model, the water inlet pipe includes a water inlet section, a buffer section, and a dissolved oxygen section. One end of the water inlet section is connected to the water inlet area. The water inlet section extends downward from the water inlet area to its other end, which is connected to one end of the buffer section. The buffer section extends horizontally to its other end, which is connected to one end of the dissolved oxygen section. The dissolved oxygen section extends upward from the dissolved oxygen section to its other end, which is connected to the interior of the pool. The air inlet pipe is connected to one end of the dissolved oxygen section.
[0009] In a preferred embodiment, in the first aspect of this invention, the other end of the dissolved oxygen section is horizontally bent and connected to the interior of the pool.
[0010] In a preferred embodiment, in the first aspect of this utility model, the cross-section at the other end of the dissolved oxygen section is an oblique cross-section, and the inclination angle of the oblique cross-section relative to the cross-section is 30-60°.
[0011] In a preferred embodiment, in the first aspect of this invention, the inclination angle of the oblique section relative to the cross section is 45°.
[0012] In a preferred embodiment, in the first aspect of this utility model, a check valve is provided in the dissolved oxygen section, and the check valve is located at the connection between the dissolved oxygen section and the air inlet pipe.
[0013] In a preferred embodiment, in the first aspect of this utility model, multiple air-lifting components are provided and spaced around the outer periphery of the pool body. The air inlet pipes of the multiple air-lifting components are all connected to the air supply equipment through the main air inlet pipe, and the main air inlet pipe is surrounded around the top of the pool body.
[0014] As a preferred embodiment, in the first aspect of this utility model, the pool floats in the water, an ecological purification zone is provided in the water, the water effluent from the pool flows into the ecological purification zone, and the inlet zone is located below the water surface of the water.
[0015] In a preferred embodiment, in the first aspect of this utility model, the water inlet area surrounds the periphery of the pool body, and a plurality of water inlet holes are provided on the outer periphery of the water inlet area, the water inlet holes being located 15-25cm below the water surface of the water body.
[0016] The second aspect of this utility model provides an aquaculture pond, comprising: the aforementioned airlift water inlet assembly, the aquaculture pond floating in a water area, an ecological purification zone provided in the water area, water effluent from the aquaculture pond flowing into the ecological purification zone, and the water inlet zone located below the water surface of the water area.
[0017] The airlift water intake component and aquaculture pond provided by this utility model have the following technical effects:
[0018] The airlift assembly features a U-shaped inlet pipe, with the air inlet pipe connected to the bottom. This allows water and oxygen to mix at the bottom of the inlet pipe before flowing upwards, increasing the mixing intensity, and then being introduced into the tank. This design provides a longer water-oxygen mixing distance, ensuring thorough mixing before the oxygen is introduced into the tank. This guarantees high and uniform oxygen levels in the water, providing ample dissolved oxygen for aquatic growth. This promotes faster growth and better health, enabling high-density aquaculture and ultimately increasing profitability. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of the aquaculture pond of this utility model;
[0020] Figure 2 This is a schematic diagram of the structure of the airlift water inlet assembly of this utility model.
[0021] Figure label:
[0022] 1. Pool body; 11. Water inlet area; 111. Water inlet hole; 2. Air lift component; 21. Water inlet pipe; 211. Water inlet section; 212. Buffer section; 213. Dissolved oxygen section; 22. Air inlet pipe; 3. Main air inlet pipe. Detailed Implementation
[0023] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.
[0024] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
[0026] See Figure 1This utility model provides an airlift water inlet assembly, including: a pool body 1 and an airlift assembly 2. The pool body 1 contains water for aquaculture and has an inlet area 11. The airlift assembly 2 includes an inlet pipe 21 and an air inlet pipe 22. The inlet pipe 21 has a U-shaped structure, and the air inlet pipe 22 is connected to the bottom of the inlet pipe 21. One end of the inlet pipe 21 is connected to the inlet area 11, and the other end of the inlet pipe 21 is connected to the interior of the pool body 1, so that water and oxygen are mixed at the bottom of the inlet pipe 21 and flow upward a certain distance before being introduced into the pool body 1.
[0027] In aquaculture within pond 1, the aquaculture process consumes oxygen, leading to a decrease in the oxygen content of the water. It also produces uneaten feed and excrement. Heavier waste settles and separates at the bottom of pond 1, while lighter floating debris tends to float on the surface, affecting water quality. Therefore, the low-quality, low-oxygen water in pond 1 needs to be drained and replaced with high-quality, high-oxygen water to ensure a healthy aquaculture environment.
[0028] This invention introduces high-quality, high-oxygen water into the pond 1 via an airlift water intake method. The airlift component 2 has a U-shaped inlet pipe 21, with an air inlet pipe 22 connected to the bottom of the inlet pipe 21. This allows water and oxygen to mix at the bottom of the inlet pipe 21 and then flow upwards, increasing the degree of mixing before being introduced into the pond 1. Thus, the airlift water intake component of the aquaculture pond has a relatively long water-oxygen mixing distance, ensuring thorough mixing before introduction into the pond. This guarantees high and uniform oxygen content in the water, providing sufficient dissolved oxygen for aquatic growth, which is beneficial for improving the growth rate and health of aquatic products. This, in turn, enables high-density aquaculture and increases aquaculture profits.
[0029] Combination Figure 2 The inlet pipe 21 includes an inlet section 211, a buffer section 212, and a dissolved oxygen section 213. One end of the inlet section 211 is connected to the inlet area 11. The inlet section 211 extends downward from the inlet area 11 to its other end, which is connected to one end of the buffer section 212. The buffer section 212 extends horizontally to its other end, which is connected to one end of the dissolved oxygen section 213. The dissolved oxygen section 213 extends upward from the dissolved oxygen section 213 to its other end, which is connected to the interior of the pool body 1. The air inlet pipe 22 is connected to one end of the dissolved oxygen section 213.
[0030] The inlet section 211 is vertically arranged, with one end located at the top and the other end at the bottom. The inlet area 11 is located above the inlet section 211, and one end of the inlet section 211 is directly connected to the inlet area 11, allowing water in the inlet area 11 to automatically flow into the inlet section 211 and then to the other end. The buffer section 212 buffers the water flow to prevent the water flow from being too fast and affecting the oxygen intake in the dissolved oxygen section 213, and also prevents oxygen from entering the inlet section 211. The vertically upward extension of the dissolved oxygen section 213 provides sufficient flow distance for water-oxygen mixing, ensuring that the water and oxygen are fully mixed before being introduced into the tank 1.
[0031] Furthermore, the other end of the dissolved oxygen section 213 is horizontally bent and connected to the interior of the pool body 1. That is, the mixture of water and oxygen is introduced horizontally into the pool body 1, causing the water and oxygen to tend to flow towards the center of the pool body 1, which helps to accelerate and improve the uniformity of oxygen content in the water within the pool body 1.
[0032] Based on this, the cross-section at the other end of the dissolved oxygen section 213 is an inclined section, with an inclination angle of 30-60° relative to the cross-section. Preferably, the inclination angle of the inclined section relative to the cross-section is 45°. The water-oxygen mixture in the dissolved oxygen section 213 enters the pool 1 at a certain inclination angle, forming a dynamic jet, thereby creating a rotating vortex within the pool 1. This facilitates faster and more uniform dissolution of oxygen and promotes the downward sedimentation and separation of heavier fecal waste, thus accelerating the efficiency of fecal waste separation.
[0033] In addition, a check valve is installed in the dissolved oxygen section 213, located at the connection between the dissolved oxygen section 213 and the air inlet pipe 22. The check valve can prevent water in the dissolved oxygen section 213 from flowing back into the air inlet pipe 22, thereby ensuring that the driving force of the oxygen lift can smoothly introduce the water-oxygen mixture into the tank 1, realizing micro-powered water intake.
[0034] Based on the above structure, multiple airlift components 2 are arranged at intervals around the outer periphery of the tank body 1. The air inlet pipes 22 of each airlift component 2 are connected to an air supply device via a main air inlet pipe 3, which is arranged around the top of the tank body 1. The multiple airlift components 2 are arranged at intervals around the outer periphery of the tank body 1, preferably evenly spaced, to uniformly supply oxygen to the tank body 1. This ensures that the water in the tank body 1 receives sufficient oxygen, avoiding the formation of oxygen-deficient areas. This promotes faster growth of aquatic organisms, maintains their health, and enables high-density aquaculture. The annular structure of the main air inlet pipe 3 allows for uniform oxygen delivery to the multiple airlift components 2, further improving the uniformity of dissolved oxygen in the water.
[0035] Aquaculture ponds are typically located in bodies of water such as rivers, lakes, seas, and fishponds. The pond body 1 floats in the water, and an ecological purification zone is located within this zone. Water from pond body 1 flows into the ecological purification zone, while the inlet area 11 is located below the water surface. The ecological purification zone cultivates aquatic plants and microorganisms. Water from pond body 1, containing low-quality, low-oxygen water, is discharged to the ecological purification zone for purification and oxygenation to obtain high-quality, high-oxygen water. The water from pond body 1 can be discharged to the ecological purification zone via an outlet pipe. It is important to note that the outlet pipe needs to be long enough to discharge the low-quality, low-oxygen water as far as possible into the ecological purification zone. This ensures that the purification and oxygenation process in the ecological purification zone does not affect the water quality near the aquaculture pond, thus guaranteeing that the high-quality, high-oxygen water automatically enters the inlet area 11 and is then introduced into pond body 1 via the airlift component 2.
[0036] The water inlet area 11 surrounds the perimeter of the pool body 1, and several water inlet holes 111 are provided on the outer perimeter of the water inlet area 11. The water inlet holes 111 are located 15-25 cm below the water surface, preferably about 20 cm. At this location, the oxygen content in the water is relatively high, which allows for control of the oxygen supply from the aeration equipment and reduces costs.
[0037] In addition, this utility model also provides an aquaculture pond, comprising: the aforementioned airlift water inlet assembly, the aquaculture pond floating in a water area, an ecological purification zone within the water area, water effluent from the aquaculture pond flowing into the ecological purification zone, and an inlet zone 11 located below the water surface. The aquaculture pond can purify and oxygenate low-quality, low-oxygen water containing floating debris by discharging it into the ecological purification zone, and then introduce high-quality, high-oxygen water into the aquaculture pond via airlift using micro-power, achieving water recycling. Furthermore, the airlift water inlet assembly of the aquaculture pond has a relatively long water-oxygen mixing distance, ensuring thorough mixing of water and oxygen before introduction into the aquaculture pond, guaranteeing high and uniform oxygen content in the water, providing sufficient dissolved oxygen for aquatic growth, which is beneficial for improving the growth rate and health of aquatic products, thereby enabling high-density aquaculture and increasing aquaculture profits.
[0038] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.
Claims
1. An airlift water inlet assembly, characterized in that, include: A pool body containing water for aquaculture, and the pool body having a water inlet area; An air-lift assembly includes a water inlet pipe and an air inlet pipe. The water inlet pipe has a U-shaped structure. The air inlet pipe is connected to the bottom of the water inlet pipe. One end of the water inlet pipe is connected to the water inlet area, and the other end of the water inlet pipe is connected to the interior of the pool body, so that water and oxygen are mixed at the bottom of the water inlet pipe and flow upward a certain distance before being introduced into the pool body.
2. The air-lift water inlet assembly according to claim 1, characterized in that: The water inlet pipe includes a water inlet section, a buffer section, and a dissolved oxygen section. One end of the water inlet section is connected to the water inlet area. The water inlet section extends downward from the water inlet area to its other end, which is connected to one end of the buffer section. The buffer section extends horizontally to its other end, which is connected to one end of the dissolved oxygen section. The dissolved oxygen section extends upward from the dissolved oxygen section to its other end, which is connected to the interior of the pool. The air inlet pipe is connected to one end of the dissolved oxygen section.
3. The air-lift water inlet assembly according to claim 2, characterized in that: The other end of the dissolved oxygen section is bent horizontally and connected to the interior of the pool.
4. The air-lift water inlet assembly according to claim 2 or 3, characterized in that: The other end of the dissolved oxygen section has a cross-section that is inclined, and the inclination angle of the inclined cross-section relative to the cross-section is 30-60°.
5. The air-lift water inlet assembly according to claim 4, characterized in that: The inclined angle of the oblique section relative to the cross section is 45°.
6. The air-lift water inlet assembly according to claim 2, characterized in that: A check valve is provided in the dissolved oxygen section, and the check valve is located at the connection between the dissolved oxygen section and the air inlet pipe.
7. The air-lift water inlet assembly according to claim 1, characterized in that: The air-lifting components are provided in multiple locations and are spaced around the outer periphery of the pool body. The air inlet pipes of the multiple air-lifting components are all connected to the air supply equipment through the main air inlet pipe, which is surrounded around the top of the pool body.
8. The air-lift water inlet assembly according to claim 1, characterized in that: The pool floats in the water, which contains an ecological purification zone. Water from the pool flows into the ecological purification zone, and the inlet area is located below the water surface.
9. The air-lift water inlet assembly according to claim 8, characterized in that: The water inlet area surrounds the periphery of the pool body, and several water inlet holes are provided on the outer periphery of the water inlet area. The water inlet holes are located 15-25cm below the water surface of the water area.
10. A breeding pond, characterized in that, include: The airlift water intake assembly according to any one of claims 1-9, wherein the aquaculture pond floats in the water area, the water area is provided with an ecological purification zone, the water effluent from the aquaculture pond flows into the ecological purification zone, and the water intake zone is located below the water surface of the water area.