Water quality adjusting device for crab culture in saline-alkali soil

By using floating and oxygenation components in saline-alkali crab ponds to increase the oxygen content at the interface between the water and the bottom sediment, the problem of insufficient oxygen content in existing technologies is solved, thereby achieving the effects of inhibiting heterotrophic bacteria activity and reducing the accumulation of toxic substances.

CN224165493UActive Publication Date: 2026-04-28NINGXIA VOCATIONAL TECHN COLLEGE OF IND & COMMERCE
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Patent Information

Application Number
CN202520919494.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-12
Publication Date
2026-04-28
Estimated Expiration
2035-05-12

AI Technical Summary

Technical Problem

Existing technologies are insufficient to effectively increase oxygen content at the interface between water and bottom sediment, and cannot inhibit the activity of heterotrophic bacteria and the accumulation of toxic substances in crab ponds in saline-alkali land.

Method used

Air is delivered into the water using floating and air supply components, and released through oxygen delivery components laid at the bottom of the pool, increasing the oxygen content at the interface between the water and the bottom sediment and inhibiting the activity of heterotrophic bacteria.

Benefits of technology

It effectively increases the oxygen content at the interface between the water and the bottom sediment, reduces the accumulation of toxic substances, decreases the rate of decomposition of organic sulfides, and reduces the accumulation of toxic substances.

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Abstract

The utility model belongs to the technical field of water quality regulation and control, and particularly relates to a water quality regulation device for crab culture in saline-alkali soil. The device is used for a culture pond and comprises a floating assembly used for floating on the water surface; the air supply assembly is arranged on the floating assembly and is used for conveying air into water; the oxygen conveying assembly is used for being laid at the bottom of a water pool, the oxygen conveying assembly is connected to the air supply assembly, the air supply assembly can convey air into the oxygen conveying assembly, and the oxygen conveying assembly can release air at the bottom of the water pool; air or oxygen can overflow on the surface of the bottom mud at the bottom of the water tank, so that the oxygen content on the contact interface of the water body and the bottom mud is increased, the activity of heterotrophic bacteria is inhibited, and the accumulation of toxic substances is reduced, so that sulfur-containing organic matters in the bottom mud are decomposed under the condition of sufficient oxygen; the efficiency of mineralizing nitrogen-containing substances to release ammonia nitrogen is reduced, the rate of decomposition of organic sulfides is reduced, and accumulation of toxic substances is reduced.
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Description

Technical Field

[0001] This utility model belongs to the field of water quality control technology, specifically relating to a water quality control device for saline-alkali crab farming. Background Technology

[0002] In saline-alkali crab ponds, sulfur-containing organic matter in the bottom mud decomposes under anaerobic conditions to produce hydrogen sulfide, while nitrogenous substances mineralize to release ammonia nitrogen. The high-salt environment of the bottom mud inhibits nitrification and exacerbates the accumulation of toxic substances. Furthermore, sulfur-containing organic matter such as uneaten feed, animal and plant carcasses, and feces in the bottom mud releases hydrogen sulfide under the decomposition of heterotrophic bacteria, especially in low-oxygen or anaerobic environments, where the rate of decomposition of organic sulfides accelerates. Therefore, in practice, zeolite powder and other powders that can increase dissolved oxygen levels are spread in the water to increase oxygen in the water, thereby inhibiting the activity of heterotrophic bacteria and reducing the accumulation of toxic substances. However, this method is costly, difficult to implement, and difficult to spread evenly in the pond.

[0003] In existing technologies, windmill-type aerators are used to stir the water and improve dissolved oxygen efficiency. Although this is suitable for the long-term oxygenation needs of crab ponds in saline-alkali land, this method results in short contact time between air and water, low dissolved oxygen efficiency, and an inability to increase the oxygen content at the interface between the water and the bottom sediment. It also fails to inhibit the activity of heterotrophic bacteria and reduce the accumulation of toxic substances. Summary of the Invention

[0004] Based on this, this application provides a water quality adjustment device for crab farming in saline-alkali land, in order to solve the technical problem in the prior art that it is difficult to effectively increase the oxygen content at the interface between the water and the bottom mud to inhibit the activity of heterotrophic bacteria and reduce the accumulation of toxic substances.

[0005] The technical solution to the above-mentioned technical problems in this application is as follows:

[0006] A water quality conditioning device for saline-alkali crab farming, used in aquaculture ponds, comprising:

[0007] Floating components for floating on the water surface;

[0008] An air supply assembly, disposed on the floating assembly, is used to deliver air into the water;

[0009] An oxygen delivery component is used to be laid at the bottom of the pool. The oxygen delivery component is connected to the air supply component, which can deliver air to the oxygen delivery component and release air at the bottom of the pool.

[0010] Preferably, the floating assembly includes at least one float plate, and both the air supply assembly and the oxygen delivery assembly are connected to the float plate.

[0011] Preferably, the floating assembly is provided with an oxygenation section, which is used to increase the oxygen in the water.

[0012] Preferably, the oxygenation unit includes a windmill-type aerator connected to a float plate to raise the water and increase the contact area with oxygen.

[0013] Preferably, the air supply assembly includes an air compressor, the output end of which is provided with a pipe for conveying air, and the air compressor is connected to the float plate.

[0014] Preferably, the oxygen delivery assembly includes a duct, and a plurality of air holes are evenly distributed on the side wall of the duct, and the duct is connected to the pipeline.

[0015] Preferably, the oxygen delivery assembly is provided with a winding section for storing the trachea.

[0016] Preferably, the winding section includes a winding device, and the air tube is disposed inside the winding device.

[0017] Preferably, a scraper ring is fixed to the side of the float plate, the air tube can pass through the scraper ring, and the outer wall of the air tube contacts the inner wall of the scraper ring. The lower end face of the scraper ring is formed with a downwardly extending arc.

[0018] Preferably, the upper end of the scraping ring is provided with a wiping sleeve, and the air tube passes through the wiping sleeve, which can wipe the surface of the air tube.

[0019] Compared with the prior art, this application has at least the following advantages:

[0020] This application provides a water quality adjustment device for crab farming in saline-alkali soil. An oxygen delivery component connected to an air supply component is laid at the bottom of the pool, allowing the oxygen delivery component to release air at the bottom of the pool. This allows air or oxygen to overflow onto the surface of the bottom mud, thereby increasing the oxygen content at the interface between the water and the bottom mud. This inhibits the activity of heterotrophic bacteria, reduces the accumulation of toxic substances, and thus reduces the efficiency of sulfur-containing organic matter in the bottom mud in decomposing to produce hydrogen sulfide and mineralizing nitrogen-containing substances to release ammonia nitrogen under sufficient oxygen conditions. This reduces the rate of decomposition of organic sulfides and decreases the accumulation of toxic substances after decomposition. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the water quality adjustment device for crab farming in saline-alkali soil as described in this application;

[0022] Figure 2 This is a schematic diagram of the trachea structure in this application;

[0023] Figure 3 This is a schematic diagram of the wiping sleeve of this application;

[0024] Figure 4 This is a schematic diagram of the scraper ring structure of this application.

[0025] In the diagram: windmill-type aerator 101; float plate 102; scraper ring 103; wiping sleeve 104; winder 201; air pipe 202; air compressor 301. Detailed Implementation

[0026] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this application.

[0027] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," "top," "bottom," "end," "top," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0028] 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 application belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0029] Please refer to Figures 1 to 4 In one specific embodiment of this application,

[0030] A water quality conditioning device for saline-alkali crab farming, used in aquaculture ponds, comprising:

[0031] Floating components for floating on the water surface;

[0032] An air supply assembly, disposed on the floating assembly, is used to deliver air into the water;

[0033] An oxygen delivery component is used to be laid at the bottom of the pool. The oxygen delivery component is connected to the air supply component. The air supply component can deliver air to the oxygen delivery component, and the oxygen delivery component can release air at the bottom of the pool.

[0034] Among them, the floating component can be a boat, or a plate or box that can float on the water surface; the air supply component can be an oxygen generator or an air compressor; the oxygen delivery component can be a hose or a channel that can deliver oxygen to the bottom of the pool.

[0035] In practice, the air supply component is mounted on the floating component, keeping it above the water surface. Then, the oxygen delivery component connected to the air supply component is laid at the bottom of the pool, allowing it to release air. This allows air or oxygen to overflow onto the surface of the bottom sediment, increasing the oxygen content at the interface between the water and the sediment. This inhibits the activity of heterotrophic bacteria, reduces the accumulation of toxic substances, and thus, under sufficient oxygen conditions, reduces the efficiency of sulfur-containing organic matter in the sediment in decomposing to produce hydrogen sulfide and mineralizing nitrogen-containing substances to release ammonia nitrogen. This slows down the rate of decomposition of organic sulfides and reduces the accumulation of toxic substances after decomposition.

[0036] Specifically, a concrete example is provided for the above process:

[0037] The floating assembly includes at least one float plate 102, and the air supply assembly and the oxygen delivery assembly are both connected to the float plate 102;

[0038] The floats can float on the water surface to support the air supply and oxygen delivery components, thus keeping the air supply components above the water surface during operation. At the same time, the number and size of the floats 102 can be increased as needed to ensure that the air supply components remain above the water surface, avoiding the safety hazards and corrosion of electronic facilities such as oxygen generators and air compressors mentioned above that may be submerged in water.

[0039] During use, air and oxygen need to be introduced into the water to increase the oxygen content. Therefore, the floating assembly described in this application is provided with an oxygenation section, which is used to increase the oxygen in the water.

[0040] The oxygenation section can use commercially available aerators, such as impeller aerators and spray aerators; these can be directly installed on the float 102 to oxygenate the water in the pond, thereby increasing the oxygen content in the water.

[0041] Specifically, a concrete example of the above process is provided:

[0042] The oxygenation unit includes a windmill-type aerator 101, which is connected to a float 102 and is used to lift water to increase the contact area with air.

[0043] In other words, by using a windmill-type aerator 101 to lift the water in the pond, the water can come into full contact with the air as it falls back into the pond, thereby increasing the oxygen content in the water. This method is suitable for use in open-air, large-area places such as ponds.

[0044] Specifically, an embodiment of the gas supply component in the above scheme is provided:

[0045] The air supply assembly includes an air compressor 301, the output end of which is provided with a pipe for conveying air, and the air compressor 301 is connected to the float plate 102.

[0046] The air compressor 301 is mounted on the float 102 using connectors such as bolts, so that the air compressor 301 is above the water surface. This allows compressed air to be introduced into the oxygenation assembly, which then delivers the compressed air to the interface between the water and the sediment. This allows the oxygen carried in the air to be released at the interface, increasing the oxygen content at the interface and reducing the activity of heterotrophic bacteria in the sediment, thus reducing the accumulation of toxic substances.

[0047] Specifically, a specific embodiment of the oxygen delivery component in the above method is provided:

[0048] The oxygen delivery assembly includes a duct 202, on which a plurality of air holes are evenly provided on the side wall, and the duct 202 is connected to the pipeline.

[0049] In use, connect the air inlet of air pipe 202 to the air supply pipe of air compressor 301. Then, turn on air compressor 301 to allow compressed air generated by air compressor 301 to enter air pipe 202, causing air to flow within air pipe 202 and overflow from several air holes. Then, air pipe 202 can be laid in the pond water (it should be noted that there are many ways to lay air pipe 202 to the bottom of the pond, such as allowing air pipe 202 to sink directly to the bottom by its own weight, since the water depth of crab farming ponds is 1-2 meters, and the weight of air pipe 202 is greater than the buoyancy; another example is to tie counterweights or stones to air pipe 202, using the counterweights or stones to pull air pipe 202 down to the bottom). 02. The air tube 202 is laid on the bottom mud of the pond, allowing air to escape from the mud and increasing the oxygen content on the surface of the mud. This inhibits the activity of heterotrophic bacteria and reduces the accumulation of toxic substances. After use, the air tube 202 is removed from the pond and the air compressor 301 is turned off. It should be noted that the air compressor 301 should continue to run while the air tube 202 is in the water to keep the air tube 202 full of air. The air supply should only be stopped after the air tube 202 is completely removed from the water. This can prevent water from entering the air tube 202 through the air holes. When laying the air tube 202, after fixing the end of the air tube 202, the rest of the air tube 202 is laid by moving the float 102 on the water surface.

[0050] When the tracheal tube 202 is installed, used, or replaced after prolonged use, it needs to be retracted or unfolded.

[0051] The oxygen delivery assembly is provided with a winding section, which is used to store the trachea 202.

[0052] In other words, when in use, the air hose 202 can be pulled out from the winding section and laid in the pond. When it is finished or replaced, the air hose 202 can be retracted into the winding section, thereby concentrating the air hose 202 for easy replacement and maintenance.

[0053] Specifically, the winding section includes a winder 201, and the air pipe 202 is disposed inside the winder 201. The winder 201 is the water pipe winder used in the market. In the initial state, the entire air pipe 202 is wound in the winder 201 and is in a wound state. During the laying, by pulling the end of the air pipe 202, the air pipe 202 is pulled out from the winder 201 and unfolded. After use, it is wound up and concentrated, which facilitates the maintenance and operation of the air pipe 202.

[0054] When the air pipe 202 is laid in the pond, mud, moss and other impurities from the pond will adhere to its surface after long-term use. If it is not cleaned when it is taken down, it will not only pollute the entire working environment, but also make the entire equipment difficult to clean.

[0055] Therefore, a scraper ring 103 is fixed on the side of the float plate 102, the air pipe 202 can pass through the scraper ring 103, and the outer wall of the air pipe 202 contacts the inner wall of the scraper ring 103. The lower end face of the scraper ring 103 is formed with a downwardly extending arc.

[0056] When the air hose 202 is finished or needs maintenance, the air hose 202 is pulled back from the pond by rotating the retractor 201. During the retraction process, the air hose 202 needs to pass upward through the scraper ring 103. At this time, the inner wall of the scraper ring 103 is in direct contact with the outer surface of the air hose 202. The scraper ring 103 can scrape off the mud, moss and other impurities on the air hose 202, keeping the surface of the air hose 202 clean after passing through the scraper ring 103, reducing impurities and avoiding pollution of the working environment.

[0057] Furthermore, in order to reduce the water on the surface of the trachea 202, a wiping sleeve 104 is provided at the upper end of the scraper ring 103. The trachea 202 passes through the wiping sleeve 104, which can wipe the surface of the trachea 202. That is to say, the wiping sleeve 104 is an object that can clean water, such as a sponge, cloth or cotton. After the scraper ring 103 has cleaned the dirt and moss and other impurities on the trachea 202, the wiping sleeve 104 is used to continue wiping the water on the surface of the trachea 202, thereby adding a cleaning process and further improving the cleaning effect of the trachea 202.

[0058] During installation, the air pipe 202 moves between the scraper ring 103 and the wiping sleeve 104, and comes into contact with friction. The friction will not damage or affect the air pipe 202. The scraper ring 103 and the wiping sleeve 104 only contact the surface of the air pipe 202 to block and wipe away impurities attached to the air pipe 202.

[0059] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A water quality adjustment device for crab farming in saline-alkali land, used in crab ponds in saline-alkali land, characterized in that, include: Floating components for floating on the water surface; An air supply assembly, disposed on the floating assembly, is used to deliver air into the water; An oxygen delivery component is used to be laid at the bottom of the pool. The oxygen delivery component is connected to the air supply component, which can deliver air to the oxygen delivery component and release air at the bottom of the pool.

2. The water quality adjustment device for saline-alkali crab farming as described in claim 1, characterized in that, The floating assembly includes at least one float plate (102), and the air supply assembly and the oxygen delivery assembly are both connected to the float plate (102).

3. The water quality adjustment device for saline-alkali crab farming as described in claim 2, characterized in that, The floating assembly is equipped with an oxygenation unit, which is used to increase the oxygen in the water.

4. The water quality adjustment device for saline-alkali crab farming as described in claim 3, characterized in that, The oxygenation unit includes a windmill-type aerator (101), which is connected to a float plate (102) to lift water and increase the contact area with air.

5. The water quality adjustment device for saline-alkali crab farming as described in claim 2, characterized in that, The air supply assembly includes an air compressor (301), the output end of which is provided with a pipe for conveying air, and the air compressor (301) is connected to the float plate (102).

6. The water quality adjustment device for saline-alkali crab farming as described in claim 5, characterized in that, The oxygen delivery assembly includes a duct (202), on which a plurality of air holes are evenly provided on the side wall, and the duct (202) is connected to the pipeline.

7. The water quality adjustment device for saline-alkali crab farming as described in claim 6, characterized in that, The oxygen delivery assembly is provided with a winding section, which is used to store the trachea (202).

8. The water quality adjustment device for saline-alkali crab farming as described in claim 7, characterized in that, The winding section includes a winding device (201), and the air pipe (202) is disposed inside the winding device (201).

9. The water quality adjustment device for saline-alkali crab farming as described in claim 6, characterized in that, The float plate (102) has a scraper ring (103) fixed on its side. The air pipe (202) can pass through the scraper ring (103), and the outer wall of the air pipe (202) contacts the inner wall of the scraper ring (103). The lower end face of the scraper ring (103) is formed with a downwardly extending arc.

10. The water quality adjustment device for saline-alkali crab farming as described in claim 9, characterized in that, The upper end of the scraping ring (103) is provided with a wiping sleeve (104), and the air tube (202) passes through the wiping sleeve (104). The wiping sleeve (104) can wipe the surface of the air tube (202).