HDPE pipe for deep water aquaculture net cage

Abstract

The utility model relates to HDPE pipe material technical field discloses a kind of HDPE pipe materials for deepwater mariculture net cage, including outer layer pipe material, the inside lateral wall of outer layer pipe material is fixedly installed with multiple split ring plates, the inside lateral wall of multiple split ring plates is fixedly installed with inner layer pipe material, cavity is formed between two adjacent split ring plates, multiple support structures are equipped in inner layer pipe material, the outer surface of outer layer pipe material is fixedly installed with multiple internal thread pipes, the one end of each internal thread pipe extends to cavity, technical effect is different buoyancy material can be injected into cavity according to actual breeding demand, ensure that net cage can still maintain stable floating state under the environment of water pressure change, greatly improve the adaptability of net cage, expand the scope of breeding operation, while outer layer pipe material directly withstands external water flow impact, marine organism collision and other physical damage, inner layer pipe material then plays the supporting and protection effect to internal breeding space.

Description

Technical Field

[0001] This utility model relates to the field of HDPE pipe technology, specifically to an HDPE pipe for deep-sea aquaculture cages. Background Technology

[0002] With the increasing scarcity of global marine fishery resources, traditional near-shore fishing can no longer meet market demand. Deep-sea aquaculture, as an important direction for sustainable fisheries development, is receiving increasing attention. Deep-sea aquaculture cages can utilize the superior water environment of the deep sea to cultivate high-quality seafood, but this poses stringent challenges to cage materials. HDPE pipes, as a key structural material for cages, have emerged with innovative structures to address this need.

[0003] Traditional deep-sea aquaculture cage pipes are mostly of a single structure, making it difficult to balance multiple performance requirements. Pipes made of a single density material lack flexibility in buoyancy adjustment. In shallow water, the cages may not be able to sink stably to the appropriate aquaculture depth due to excessive buoyancy. In deep sea, the cages may not be able to maintain the set water layer due to insufficient buoyancy, making it difficult to accurately control the aquaculture environment and affecting the growth and reproduction of aquaculture organisms. Therefore, we propose a new type of HDPE pipe for deep-sea aquaculture cages. Utility Model Content

[0004] This utility model provides the following technical solution: it includes an outer tube, with multiple dividing ring plates fixedly installed on the inner sidewall of the outer tube, and an inner tube fixedly installed on the inner sidewall of the multiple dividing ring plates. A cavity is formed between two adjacent dividing ring plates. Multiple supporting structures are provided inside the inner tube. Multiple internally threaded tubes are fixedly installed on the outer surface of the outer tube. One end of each internally threaded tube extends into the cavity. The inner wall surface of the internally threaded tube is threaded. The internally threaded tube is threadedly connected to a threaded rod, and a protective structure is provided on the threaded rod.

[0005] Preferably, each of the support structures includes two reinforcing plates, which are fixedly installed on the inner wall of the inner tube. An X-shaped frame is fixedly installed on the opposite sidewall of the two reinforcing plates, and the X-shaped frame has an X-shaped longitudinal section.

[0006] Preferably, the protective structure includes two limiting plates, both of which are fixedly installed on the outer surface of the internally threaded tube. The upper end of the upper limiting plate is provided with a receiving groove. The upper end of the threaded rod is fixedly installed with a rotating handle, and the bottom end of the rotating handle is fixedly installed with a protective cylinder.

[0007] Preferably, a sealing gasket is fixedly installed at the bottom of the protective cylinder, and the sealing gasket is made of rubber.

[0008] Preferably, the outer pipe is made of HDPE material with better weather resistance and UV resistance, and the inner pipe is made of HDPE material with better chemical corrosion resistance.

[0009] Preferably, the outer surface of the outer tube is provided with multiple grooves, which are arranged in a spiral shape.

[0010] Compared with the prior art, the beneficial effects of this utility model are: This invention utilizes a unique mechanical structure formed by combining inner and outer tubular structures with multiple cavities in between. Different buoyancy materials can be injected into the cavities according to actual aquaculture needs, ensuring that the net cage maintains a stable floating state even under varying water pressure conditions. This greatly enhances the adaptability of the net cage and expands the aquaculture operation range. At the same time, the outer tubular structure directly resists physical damage such as external water flow impacts and collisions with marine organisms, while the inner tubular structure provides support and protection for the internal aquaculture space. This allows the net cage to maintain good structural integrity even in harsh marine environments, such as strong typhoons and fast-flowing areas, extending the service life of the net cage and reducing the economic losses caused by frequent replacement of aquaculture facilities. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 For the present utility model Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the component structure of this utility model.

[0012] In the diagram: 1. Outer tube; 2. Dividing ring plate; 3. Inner tube; 4. Cavity; 5. Internally threaded tube; 6. Limiting plate; 7. Receiving groove; 8. Threaded rod; 9. Protective cylinder; 10. Rotating handle; 12. Reinforcing plate; 13. X-shaped frame; 14. Sealing gasket.

[0013] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to the specific structure, device and environment. According to specific needs, those skilled in the art can adjust or modify these devices and environments, and such adjustments or modifications are still included in the scope of the appended claims. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] like Figure 1-4 As shown, this utility model provides a technical solution: an HDPE pipe for deep-sea aquaculture cages, including an outer pipe 1, multiple dividing ring plates 2 are fixedly installed on the inner sidewall of the outer pipe 1, an inner pipe 3 is fixedly installed on the inner sidewall of the multiple dividing ring plates 2, a cavity 4 is formed between two adjacent dividing ring plates 2, multiple support structures are provided in the inner pipe 3, multiple internally threaded pipes 5 are fixedly installed on the outer surface of the outer pipe 1, one end of each internally threaded pipe 5 extends into the cavity 4, the inner wall surface of the internally threaded pipe 5 is threaded, the internally threaded pipe 5 is threadedly connected to a threaded rod 8, and a protective structure is provided on the threaded rod 8.

[0016] In an optional embodiment: each support structure includes two reinforcing plates 12, which are fixedly installed on the inner wall of the inner tube 3, and X-shaped frames 13 are fixedly installed on the opposite side walls of the two reinforcing plates 12, with the X-shaped frames 13 having an X-shaped longitudinal section.

[0017] It should be noted that the reinforcing plate 12 is arranged axially along the inner wall of the pipe, which can increase the circumferential stiffness of the pipe and make it more able to withstand the external water pressure in deep water environment. The X-shaped frame 13 can evenly distribute the pressure on the reinforcing plate 12 to various parts of the pipe, thereby enhancing the overall compressive strength of the pipe.

[0018] In an optional embodiment: the protective structure includes two limiting plates 6, both of which are fixedly installed on the outer surface of the internally threaded tube 5. The upper end of the upper limiting plate 6 is provided with a receiving groove 7. The upper end of the threaded rod 8 is fixedly installed with a rotating handle 10, and the bottom end of the rotating handle 10 is fixedly installed with a protective cylinder 9.

[0019] It should be noted that when the threaded rod 8 rotates clockwise and counterclockwise, it can move the rotating handle 10 up and down. When the rotating handle 10 moves up and down, it can move the protective cylinder 9 down and up. When the protective cylinder 9 moves down, it enters the receiving groove 7. This can help to form a sealed space inside the protective cylinder 9, preventing seawater from entering the protective cylinder 9 and corroding the outer surface of the threaded rod 8.

[0020] In an optional embodiment, a sealing gasket 14 is fixedly installed at the bottom end of the protective cylinder 9. The sealing gasket 14 is made of rubber.

[0021] It should be noted that rubber has excellent elasticity and can undergo elastic deformation under the high pressure environment of the deep sea, thereby tightly fitting the sealing surface, filling various uneven areas, so that seawater will not enter the protective cylinder 9 and cause corrosion on the outer surface of the threaded rod 8, achieving a good sealing effect. Rubber has good corrosion resistance to seawater and is not easily corroded by salts, minerals and chemicals in seawater.

[0022] In one alternative embodiment: the outer pipe 1 is made of HDPE material with better weather resistance and UV resistance, and the inner pipe 3 is made of HDPE material with better chemical corrosion resistance.

[0023] It should be noted that the outer pipe 1 is made of HDPE material with better weather resistance and UV resistance, such as Chevron Phillips HMNTR-942, to resist sunlight, wind and rain erosion in the marine environment. The inner pipe 3 is made of HDPE material with better chemical corrosion resistance or hygiene performance, such as Nova Chemical HE-Y449-A, to adapt to various chemicals that may exist in the aquaculture water and ensure the health of the aquaculture organisms.

[0024] In an optional embodiment: the outer surface of the outer tube 1 is provided with a plurality of grooves, which are arranged in a spiral shape.

[0025] It should be noted that during the aquaculture process, microorganisms, algae, and other biofilms will gradually adhere to the surface of the pipes. The grooves increase the surface area of ​​the pipes, providing more space for biofilm adhesion. These biofilms can absorb nutrients from seawater to a certain extent, playing a role in purifying the water quality. At the same time, they provide an additional food source for the cultured organisms, which is conducive to maintaining the balance of the aquaculture ecosystem. The spiral grooves will cause some disturbance and eddies in the water flow, which helps to increase the oxygen content of the water, improve the exchange efficiency of the aquaculture water, and provide more oxygen and fresh water environment for the cultured organisms, which is beneficial to the growth and health of the cultured organisms.

[0026] In practical use, the working principle of this utility model is as follows: By rotating the handle 10 clockwise and counterclockwise, the threaded rod 8 can be rotated clockwise and counterclockwise, respectively, thus disengaging the threaded rod 8 from the internal threaded tube 5 or blocking the internal threaded tube 5. This allows different buoyancy materials to be injected into different cavities 4 through the internal threaded tube 5. In shallow water operations, injecting a suitable amount of lighter buoyancy material, such as some air or low-density foam particles, allows the net cage to float easily on the surface, facilitating daily management and maintenance by aquaculture personnel. When it is necessary to transfer the net cage to deeper water areas, a material with greater buoyancy, such as a specially formulated high-buoyancy polymer, can be used to ensure that the net cage maintains a stable floating state even under increased water pressure, greatly improving the adaptability of the net cage to different water depths and expanding the scope of aquaculture operations. The multiple support structures are arranged similarly to a fishbone structure, enabling... The reinforcement plate 12 increases the circumferential stiffness of the pipe, making it more able to withstand the external water pressure in deep water environments. When the cage is hit by external objects or water flow, the reinforcement plate 12 acts as the first line of defense, absorbing and dispersing part of the impact force. Since the reinforcement plate 12 is set around the inner wall of the pipe, it can diffuse the impact force in the circumferential direction, avoiding the impact force from being concentrated on a certain point or area of ​​the pipe, thereby reducing the damage to the pipe. The X-shaped frame 13 plays a supporting and connecting role between the reinforcement plates 12. When the impact force is transmitted to the reinforcement plate 12, the X-shaped frame 13 can further disperse the impact force in the axial and radial directions. It is like a buffer, converting the impact force into a smaller force through its own deformation and energy dissipation, and transmitting it to other parts of the pipe, improving the impact resistance of the pipe and protecting the cage from damage by external impacts.

[0027] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. An HDPE pipe for deep-sea aquaculture cages, comprising an outer pipe (1), characterized in that: Multiple dividing ring plates (2) are fixedly installed on the inner sidewall of the outer tube (1), and an inner tube (3) is fixedly installed on the inner sidewall of the multiple dividing ring plates (2). A cavity (4) is formed between two adjacent dividing ring plates (2). Multiple supporting structures are provided inside the inner tube (3). Multiple internally threaded tubes (5) are fixedly installed on the outer surface of the outer tube (1). One end of each internally threaded tube (5) extends into the cavity (4). The inner wall surface of the internally threaded tube (5) is threaded. The internally threaded tube (5) is threadedly connected to a threaded rod (8). A protective structure is provided on the threaded rod (8).

2. The HDPE pipe for deep-sea aquaculture cages according to claim 1, characterized in that: Each of the support structures includes two reinforcing plates (12), which are fixedly installed on the inner wall of the inner tube (3). An X-shaped frame (13) is fixedly installed on the opposite side wall of the two reinforcing plates (12), and the X-shaped frame (13) has an X-shaped longitudinal section.

3. The HDPE pipe for deep-sea aquaculture cages according to claim 1, characterized in that: The protective structure includes two limiting plates (6), both of which are fixedly installed on the outer surface of the internal threaded tube (5). The upper end of the upper limiting plate (6) is provided with a receiving groove (7). The upper end of the threaded rod (8) is fixedly installed with a rotating handle (10), and the bottom end of the rotating handle (10) is fixedly installed with a protective cylinder (9).

4. The HDPE pipe for deep-sea aquaculture cages according to claim 3, characterized in that: A sealing gasket (14) is fixedly installed at the bottom of the protective cylinder (9), and the sealing gasket (14) is made of rubber.

5. The HDPE pipe for deep-sea aquaculture cages according to claim 1, characterized in that: The outer pipe (1) is made of HDPE material with better weather resistance and UV resistance, and the inner pipe (3) is made of HDPE material with better chemical corrosion resistance.

6. The HDPE pipe for deep-sea aquaculture cages according to claim 1, characterized in that: The outer surface of the outer tube (1) is provided with a plurality of grooves, which are arranged in a spiral shape.

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