Seawater industrial aquaculture water quality regulation and control device

Through the mechanical structure of the control components and hydraulic cylinders working in tandem, the precise addition of acid and alkali solutions and the rapid opening of the filter box in the seawater industrial aquaculture water quality control device are realized, solving the problem of pH fluctuation caused by manual addition and improving the stability and convenience of water quality control.

CN223624542UActive Publication Date: 2025-12-02TIANJIN FISHERIES RES INST (TIANJIN FISHERIES TECH EXTENSION STATION BOHAI SEA FISHERIES RES CENT OF CHINESE ACAD OF FISHERIES SCI)
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Patent Information

Application Number
CN202423082014.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-13
Publication Date
2025-12-02
Estimated Expiration
2034-12-13

AI Technical Summary

Technical Problem

In traditional marine intensive aquaculture water quality control devices, it is difficult to precisely control the amount of acid and alkali solutions added manually, resulting in excessive fluctuations in seawater pH, which affects the growth and health of farmed organisms and cannot respond to changes in water quality in a timely manner, increasing the risk of aquaculture.

Method used

The mechanical structure employs a control component and a hydraulic cylinder working in tandem to achieve precise addition of acid and alkali solutions. Combined with a real-time acid and alkali monitor, it ensures stable seawater pH. The hydraulic cylinder drives the clamping plate to quickly open the filter box, facilitating filter plate cleaning.

Benefits of technology

It enables precise addition of acid and alkali solutions, maintains stable seawater pH, reduces harm to cultured organisms, improves the stability and convenience of water quality control, and reduces aquaculture risks.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of seawater quality regulation and control, and discloses a seawater industrial aquaculture water quality regulation and control device which comprises a control device, a filter box is arranged on the side wall of the control device, a first connecting pipe is fixedly connected to the side wall of the filter box, and a third connecting pipe is fixedly connected to the interior of the first connecting pipe. A seawater tank is fixedly connected to one end of the third connecting pipe, an acid-base monitor is fixedly connected to the inner wall of the seawater tank, a fixing plate is fixedly connected to the inner wall of the seawater tank, and a quantity control assembly is fixedly connected to the side wall of the fixing plate. According to the utility model, the solution enters the quantitative tank, the first hydraulic cylinder pushes the sliding plate to drive the quantitative tank to move, the side wall connecting plate is driven to enable the rotating plate to fall, the solution in the tank is accurately controlled, the effect of quantifying the flow of the acid-base solution is achieved, and the problem that the inlet amount of the acid-base solution cannot be effectively controlled when the acid-base solution is manually added is solved. And the stability of the culture water quality regulation and control device is improved.
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Description

Technical Field

[0001] This utility model relates to the field of seawater quality control technology, and in particular to a seawater industrial aquaculture water quality control device. Background Technology

[0002] The water quality in marine intensive aquaculture encompasses a wide range of characteristics. Physically, a temperature of around 18-28℃ is suitable for the growth of most marine fish; excessively high or low temperatures negatively impact metabolism. A transparency of 30-50 cm is ideal, facilitating phytoplankton photosynthesis and observation during aquaculture. Excessive suspended matter deteriorates water quality. Chemically, a stable pH of 7.5-8.6 is crucial for shellfish calcification; dissolved oxygen levels above 5-8 mg / L are critical for survival; salinity varies depending on the organism; adequate nutrients promote phytoplankton growth, while excessive amounts can trigger red tides. Biologically, microbial communities can be beneficial or harmful, and the types and quantities of plankton are extremely important for maintaining ecological balance in aquaculture. Marine intensive aquaculture water quality is complex and variable due to various factors. Fluctuations in temperature, pH, dissolved oxygen, salinity, and other indicators, as well as changes in microbial communities and plankton, can all exceed the suitable range for farmed organisms, leading to disease, slow growth, or even death. The control device can accurately monitor various water quality parameters. Through intelligent analysis and automatic control, it can adjust water temperature, oxygenation, pH and nutrient concentration in a timely manner to ensure that the water quality is stable in an ideal state, thus protecting aquaculture benefits and the health of organisms. Therefore, it is necessary to use a seawater factory aquaculture water quality control device to ensure that the water quality is always stable.

[0003] Traditional marine aquaculture water quality control devices have diverse structures and crucial functions. In the physical control structure, the mechanical filters of the filtration system use multi-layered filter media such as quartz sand and activated carbon to intercept suspended solids such as silt and uneaten feed, and adsorb impurities based on pore size differences. Foam separators use air bubbles to adsorb organic matter and remove contaminants. Temperature control equipment includes electric heaters or heat exchangers to raise the temperature, and chillers and cooling towers to lower the temperature, ensuring the water temperature matches the needs of the cultured organisms. The chemical control structure requires the addition of acid and alkali solutions to maintain the stability of the seawater's pH; aerators such as impeller-type and microporous aerators to increase dissolved oxygen; freshwater addition and seawater mixing devices to adjust salinity; and nutrient salt adjustment components to replenish or remove nitrates as needed. In the biological control structure, beneficial microbial agents are precisely administered to decompose ammonia nitrogen, while plankton monitoring and control equipment maintains system balance through microscopic examination, light, and nutrient salt control.

[0004] However, traditional marine intensive aquaculture water quality control devices generally rely on manual operation when adding acid and alkali solutions, which brings many drawbacks. First, manual addition makes it difficult to accurately control the amount of acid and alkali solutions added. Estimation based solely on experience and simple tools cannot be as precise as automated equipment down to the milliliter or even smaller units, easily leading to over- or under-addition. This causes excessive fluctuations in seawater pH, exceeding the suitable range for cultured organisms (7.5-8.6), affecting their normal growth and immunity, and in severe cases, causing mass mortality. Second, the uneven speed of manual addition can result in large amounts of solution being poured in at once, causing localized excessively high or low pH levels, which can severely irritate and harm cultured organisms in those areas. Furthermore, it is difficult to ensure uniform solution distribution over large aquaculture areas. Third, manual operation relies on frequent pH monitoring by operators, which introduces a time lag, failing to respond promptly to changes in water quality. Especially at night or during periods of human negligence, water quality problems may worsen undetected, significantly increasing aquaculture risks, reducing efficiency and profitability, and hindering the stable and sustainable development of marine intensive aquaculture. Therefore, a marine intensive aquaculture water quality control device is proposed to address these problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a water quality control device for seawater factory aquaculture, which aims to improve the problem that when acid and alkali solutions are added manually in the existing technology, it is difficult to accurately control the amount of acid and alkali solutions added, which affects the normal growth and immunity of the animals, and in severe cases can lead to mass mortality.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A water quality control device for seawater industrialized aquaculture includes a control device. A filter box is provided on the side wall of the control device. A first connecting pipe is fixedly connected to the side wall of the filter box. A third connecting pipe is fixedly connected inside the first connecting pipe. A seawater tank is fixedly connected to one end of the third connecting pipe. An acid-base monitor is fixedly connected to the inner wall of the seawater tank. A fixing plate is fixedly connected to the inner wall of the seawater tank. A flow control component is fixedly connected to the side wall of the fixing plate.

[0008] The quantity control component includes a fixed rod, the side wall of which is fixedly connected to the side wall of a fixed plate. A slide rail is fixedly connected to the top of the fixed rod, a second L-shaped connecting plate is fixedly connected to the bottom of the slide rail, a first L-shaped connecting plate is fixedly connected to the side wall of the slide rail, a first hydraulic cylinder is fixedly connected to the side wall of the first L-shaped connecting plate, a slide plate is fixedly connected to the output end of the first hydraulic cylinder, the side wall of the slide plate is slidably connected to the inside of the slide rail, a metering tank is fixedly connected to the bottom of the slide plate, a first connecting plate is fixedly connected to the outer wall of the metering tank, a rotating plate is rotatably connected to the side wall of the first connecting plate, the top of the rotating plate is rotatably connected to the bottom of the metering tank, and a material loading component is provided on the top of the slide plate.

[0009] As a further description of the above technical solution:

[0010] The material loading assembly includes a storage tank, the bottom of which is fixedly connected to the top of a slide rail. The storage tank is used to store acid and alkaline regulators.

[0011] As a further description of the above technical solution:

[0012] An air compressor is provided on the side wall of the first connecting pipe, and a second connecting pipe is fixedly connected to the output end of the air compressor. The bottom outer wall of the second connecting pipe is fixedly connected to the side wall of the fixing plate.

[0013] As a further description of the above technical solution:

[0014] An aerator is fixedly connected to the inner wall of the second connecting pipe, and an aerator is fixedly connected to the inner wall of each second connecting pipe.

[0015] As a further description of the above technical solution:

[0016] A filter plate is fixedly connected inside the filter box. The function of the filter plate is to filter seawater and remove impurities from the water.

[0017] As a further description of the above technical solution:

[0018] A second hydraulic cylinder is fixedly connected to the side wall of the filter box, and a clamping plate is fixedly connected to the output end of the second hydraulic cylinder.

[0019] As a further description of the above technical solution:

[0020] A fixing block is fixedly connected to the top of the second hydraulic cylinder, and a second connecting plate is rotatably connected to the side wall of the fixing block;

[0021] As a further description of the above technical solution:

[0022] The second connecting plate sidewall is rotatably connected to the clamping plate sidewall, and the bottom of the clamping plate is located at the top of the filter box.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, after the solution enters the metering tank from the storage tank, the first hydraulic cylinder drives the sliding plate to move the metering tank. The first connecting plate on its side wall drives the rotating plate to fall. After it detaches from the bottom surface, it is held in place by the second L-shaped connecting plate and adheres to the bottom surface, thus achieving the effect of metering the flow rate of acid and alkali solutions. This solves the problem that when adding acid and alkali solutions manually, it is impossible to effectively control the amount of acid and alkali solutions entering, which affects the normal growth of aquaculture organisms. This also improves the stability of the aquaculture water quality control device.

[0025] 2. In this utility model, the clamping plate is rotated by the output end of the second hydraulic cylinder, and the rotation of the clamping plate is connected by the second connecting plate, which achieves the effect of quickly opening the filter box. This solves the problem that it is too troublesome to clean the filter plate because the filter box cannot be opened quickly, and improves the convenience of the aquaculture water quality control device. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of a water quality control device for seawater industrialized aquaculture proposed in this utility model.

[0027] Figure 2 This is a schematic diagram of the top structure of the fixing rod of a water quality control device for seawater industrialized aquaculture proposed in this utility model;

[0028] Figure 3 This is a schematic diagram of the internal structure of the filter box of a seawater industrial aquaculture water quality control device proposed in this utility model.

[0029] Figure 4 This is a cross-sectional structural diagram of a seawater tank for a seawater quality control device for industrialized aquaculture proposed in this utility model.

[0030] Figure 5 for Figure 1 Enlarged view of point A in the middle.

[0031] Legend:

[0032] 1. Control device; 2. Filter box; 3. First connecting pipe; 4. Air compressor; 5. Second connecting pipe; 6. Fixing plate; 7. Storage tank; 8. Seawater tank; 9. Third connecting pipe; 10. Fixing rod; 11. First L-shaped connecting plate; 12. First hydraulic cylinder; 13. Slide rail; 14. Slide plate; 15. Metering tank; 16. First connecting plate; 17. Rotating plate; 18. Filter plate; 19. Acid-base monitor; 20. Second hydraulic cylinder; 21. Fixing block; 22. Second connecting plate; 23. Clamping plate; 24. Second L-shaped connecting plate; 25. Aerator. Detailed Implementation

[0033] 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.

[0034] Reference Figure 1 and Figure 2An embodiment of this utility model provides a water quality control device for seawater industrialized aquaculture, including a control device 1. A filter box 2 is provided on the side wall of the control device 1. The filter box 2 can be made of high-strength engineering plastic material. A first connecting pipe 3 is fixedly connected to the side wall of the filter box 2. A third connecting pipe 9 is fixedly connected inside the first connecting pipe 3. The first connecting pipe 3 and the third connecting pipe 9 can be made of corrosion-resistant polyvinyl chloride pipe. A seawater tank 8 is fixedly connected to one end of the third connecting pipe 9. The seawater tank 8 can be made of stainless steel. An acid-base monitor 19 is fixedly connected to the inner wall of the seawater tank 8. A fixing plate 6 is fixedly connected to the inner wall of the seawater tank 8. A flow control component is fixedly connected to the side wall of the fixing plate 6.

[0035] The quantity control component includes a fixed rod 10, the side wall of which is fixedly connected to the side wall of a fixed plate 6. A slide rail 13 is fixedly connected to the top of the fixed rod 10. The slide rail 13 can be made of wear-resistant and corrosion-resistant engineering plastic. A second L-shaped connecting plate 24 is fixedly connected to the bottom of the slide rail 13. A first L-shaped connecting plate 11 is fixedly connected to the side wall of the slide rail 13. A first hydraulic cylinder 12 is fixedly connected to the side wall of the first L-shaped connecting plate 11. A slide plate 14 is fixedly connected to the output end of the first hydraulic cylinder 12. The slide plate 14 can be made of engineering plastic. The side wall of the slide plate 14 is slidably connected to the inside of the slide rail 13. A metering tank 15 is fixedly connected to the bottom of the slide plate 14. A first connecting plate 16 is fixedly connected to the outer wall of the metering tank 15. A rotating plate 17 is rotatably connected to the side wall of the first connecting plate 16. The rotating plate 17 can be made of engineering plastic. The top of the rotating plate 17 is rotatably connected to the bottom of the metering tank 15. A material loading component is provided on the top of the slide plate 14.

[0036] Specifically, in the water quality control process of seawater intensive aquaculture, the pH monitor 19 inside the seawater tank 8 plays a crucial monitoring role. It continuously and accurately detects the pH value of the seawater, and once a deviation from the suitable range is detected, the control mechanism is immediately activated. Upon receiving a signal, the first hydraulic cylinder 12's output end begins to move, pushing the slide plate 14 to move smoothly on the slide rail 13. The displacement of the slide plate 14 causes the connected metering tank 15 to move synchronously, and the first connecting plate 16 on the outer wall of the metering tank 15 also changes position, thereby causing the rotating plate 17 on the side wall to rotate. At this time, the second L-shaped connecting plate 24 cleverly engages the rotating plate 17 from the side, making it tightly fitted to the bottom of the metering tank 15, forming a closed space. Next, the acid and alkali solutions in storage tank 7 fall precisely into metering tank 15 under pressure or gravity. Through this coordinated mechanical structure, the amount of solution added is precisely controlled, ensuring that the amount of acid and alkali solution added to seawater tank 8 each time is just right, effectively maintaining the stability of seawater pH and creating a suitable living environment for aquaculture organisms.

[0037] Reference Figures 1-3 and Figure 5A filter plate 18 is fixedly connected inside the filter box 2. The filter plate 18 can be made of multiple layers of different materials. The function of the filter plate 18 is to filter seawater and remove impurities from the water. A second hydraulic cylinder 20 is fixedly connected to the side wall of the filter box 2. A clamping plate 23 is fixedly connected to the output end of the second hydraulic cylinder 20. The clamping plate 23 can be made of aluminum alloy. A fixing block 21 is fixedly connected to the top of the second hydraulic cylinder 20. A second connecting plate 22 is rotatably connected to the side wall of the fixing block 21. The side wall of the second connecting plate 22 is rotatably connected to the side wall of the clamping plate 23. The bottom of the clamping plate 23 is set at the top of the filter box 2.

[0038] Specifically, when it is necessary to clean the filter plates 18 inside the filter box 2, the second hydraulic cylinder 20 starts operating, applying power to its output end to drive the clamping plate 23 connected to it to rotate. During this process, since the second connecting plate 22 connects the clamping plate 23 to other related components, the second connecting plate 22 and its associated structures rotate along with the clamping plate 23 as it rotates. With the coordinated rotation of these components, the originally tightly closed filter box 2 is gradually opened, thus achieving the effect of easily disassembling and opening the filter box 2. This allows personnel to smoothly remove the filter plates 18 for cleaning, replacement, or maintenance, ensuring that the filtration performance of the filter box 2 remains in good condition, thereby maintaining the overall stable operation of the seawater aquaculture water quality control device.

[0039] Reference Figure 1 and Figure 4 The material loading assembly includes a storage tank 7, which can be made of high-density polyethylene. The bottom of the storage tank 7 is fixedly connected to the top of the slide rail 13. The storage tank 7 is used to store some acid and alkaline regulators. An air compressor 4 is installed on the side wall of the first connecting pipe 3. The output end of the air compressor 4 is fixedly connected to a second connecting pipe 5. The second connecting pipe 5 can be made of highly corrosion-resistant polyvinyl chloride pipe. The bottom outer wall of the second connecting pipe 5 is fixedly connected to the side wall of the fixing plate 6. An aerator 25 is fixedly connected to the inner wall of the second connecting pipe 5. The aerator 25 can be made of rubber or engineering plastic. Each second connecting pipe 5 has an aerator 25 fixedly connected to its inner wall.

[0040] Specifically, the operation of this device follows a rigorous process in the water quality control of marine intensive aquaculture. First, the seawater to be controlled is introduced into filter box 2. Utilizing multiple layers of filters and filter media of varying precision, such as quartz sand and activated carbon, the seawater is effectively filtered to remove sediment, uneaten feed, feces, and some organic impurities. After initial purification, the seawater begins to flow under the pressure difference or pump action within filter box 2, steadily flowing into the seawater tank 8 via the third connecting pipe 9. Simultaneously, the air compressor 4 starts working, compressing and delivering a large amount of air. This air flows rapidly along the second connecting pipe 5. When it passes through the carefully designed filter plate 18 inside the second connecting pipe 5, the air is dispersed into tiny bubbles, evenly mixing into the seawater, creating an aeration effect. Through this continuous and stable aeration process, oxygen in the seawater is fully replenished and mixed, maintaining the oxygen content at an ideal level suitable for the growth and reproduction of aquaculture organisms. This provides a good respiratory environment for the organisms in marine intensive aquaculture, effectively ensuring the smooth progress of aquaculture activities and the healthy growth of the aquaculture organisms.

[0041] Working Principle: When using the seawater factory aquaculture water quality control device, seawater is first filtered through filter box 2, then circulated through filter box 2, and then flows into the seawater tank 8 through the third connecting pipe 9. Air compressor 4 generates a large amount of air, which flows through the second connecting pipe 5 and is aerated through the filter plate 18 inside the second connecting pipe 5, ensuring a consistently high oxygen content in the seawater. The pH value of the seawater is then detected by the pH monitor 19 inside the seawater tank 8. If a difference in pH is detected, the output end of the first hydraulic cylinder 12 drives the sliding plate 14 to move. Simultaneously, the sliding plate 14 moves within the slide rail 13, and as the sliding plate 14 moves, it moves the metering tank... The movement of the metering tank 15, along with the movement of the first connecting plate 16 on the outer wall, causes the rotating plate 17 on the side wall to rotate. The rotating plate 17 is held in place by the side of the second L-shaped connecting plate 24, making it fit against the bottom of the metering tank 15. The solution inside the storage tank 7 is then dropped into the metering tank 15, achieving the effect of controlling the solution variation. When cleaning the filter plate 18 inside the filter box 2, the output end of the second hydraulic cylinder 20 drives the clamping plate 23 to rotate. The clamping plate 23 is connected by the second connecting plate 22, causing it to rotate along with the clamping plate 23, thus achieving the effect of disassembling and opening the filter box 2.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A water quality control device for seawater industrialized aquaculture, comprising a control device (1), characterized in that: The control device (1) has a filter box (2) on its side wall. A first connecting pipe (3) is fixedly connected to the side wall of the filter box (2). A third connecting pipe (9) is fixedly connected inside the first connecting pipe (3). A seawater tank (8) is fixedly connected to one end of the third connecting pipe (9). An acid-base monitor (19) is fixedly connected to the inner wall of the seawater tank (8). A fixing plate (6) is fixedly connected to the inner wall of the seawater tank (8). A flow control component is fixedly connected to the side wall of the fixing plate (6). The quantity control component includes a fixed rod (10), the side wall of which is fixedly connected to the side wall of a fixed plate (6), a slide rail (13) is fixedly connected to the top of the fixed rod (10), a second L-shaped connecting plate (24) is fixedly connected to the bottom of the slide rail (13), a first L-shaped connecting plate (11) is fixedly connected to the side wall of the slide rail (13), a first hydraulic cylinder (12) is fixedly connected to the side wall of the first L-shaped connecting plate (11), a slide plate (14) is fixedly connected to the output end of the first hydraulic cylinder (12), the side wall of the slide plate (14) is slidably connected to the inside of the slide rail (13), a metering tank (15) is fixedly connected to the bottom of the slide plate (14), a first connecting plate (16) is fixedly connected to the outer wall of the metering tank (15), a rotating plate (17) is rotatably connected to the side wall of the first connecting plate (16), the top of the rotating plate (17) is rotatably connected to the bottom of the metering tank (15), and a material loading component is provided on the top of the slide plate (14).

2. The water quality control device for seawater industrialized aquaculture according to claim 1, characterized in that: The material loading assembly includes a storage tank (7), the bottom of which is fixedly connected to the top of the slide rail (13). The storage tank (7) is used to store some acid regulators and alkaline regulators.

3. The seawater industrial aquaculture water quality control device according to claim 1, characterized in that: An air compressor (4) is provided on the side wall of the first connecting pipe (3), and a second connecting pipe (5) is fixedly connected to the output end of the air compressor (4). The bottom outer wall of the second connecting pipe (5) is fixedly connected to the side wall of the fixing plate (6).

4. The seawater industrial aquaculture water quality control device according to claim 3, characterized in that: An aerator (25) is fixedly connected to the inner wall of the second connecting pipe (5), and an aerator (25) is fixedly connected to the inner wall of each second connecting pipe (5).

5. The seawater industrial aquaculture water quality control device according to claim 1, characterized in that: The filter box (2) is fixedly connected to a filter plate (18), which is used to filter seawater and remove impurities from the water.

6. The seawater industrial aquaculture water quality control device according to claim 1, characterized in that: The filter box (2) is fixedly connected to a second hydraulic cylinder (20) on its side wall, and a clamping plate (23) is fixedly connected to the output end of the second hydraulic cylinder (20).

7. The seawater industrial aquaculture water quality control device according to claim 6, characterized in that: The top of the second hydraulic cylinder (20) is fixedly connected to a fixing block (21), and the side wall of the fixing block (21) is rotatably connected to a second connecting plate (22).

8. The seawater industrial aquaculture water quality control device according to claim 7, characterized in that: The side wall of the second connecting plate (22) is rotatably connected to the side wall of the clamping plate (23), and the bottom of the clamping plate (23) is set at the top of the filter box (2).