Common Sense About Aeration Oxygenators


Release time:

2022-10-25

The aeration oxygenator features a simple and lightweight design, with its greatest advantage being energy efficiency. Unlike impeller-type and paddle-wheel-type oxygenators, this model employs a unique flower-shaped spiral impeller paired with a distinctive float design, which enables the water output to jet upward, creating a boiling effect and generating surging waves in a specific area of the water body. This process significantly increases the contact between the water and air during the spraying phase, thereby enhancing the dissolved oxygen content in the water. As the water jets upward, it directly passes through the motor and gearbox, allowing both the motor and gearbox to be cooled by the water itself. As a result, the motor can operate for extended periods without overheating, eliminating the common issue of motor overheating due to prolonged operation, which typically leads to increased current draw and eventual burnout. It can operate effectively within a voltage range of 300V to 350V.

   Aeration and oxygenation machine Its design is simple and lightweight, and it's relatively large. Its advantage lies in energy efficiency. The oxygenation principle differs from that of impeller-type and water-wheel-type aerators. Featuring a unique flower-shaped spiral impeller paired with a distinctive float design, this aerator directs the output water upward in a vigorous spray, creating a boiling-like effect and generating surging waves within a specific area. This enhanced water-air contact during the spraying process significantly boosts the dissolved oxygen content in the water. As the water is sprayed upward, it directly passes through the motor and gearbox, allowing both the motor and gearbox to be cooled by the water itself. As a result, the motor can operate for extended periods without overheating, eliminating the common issue of increased current and motor burnout caused by prolonged operation and heat buildup. Moreover, this aerator can function normally even under ultra-low voltages ranging from 300V to 350V.

  Aeration oxygenators have many advantages, but they also have some drawbacks—for instance, unlike impeller-type surface aerators, micro-pore aerators lack the strong water-mixing capability of paddle-wheel aerators, and their installation can be more cumbersome. Nevertheless, micro-pore aerators have gained widespread popularity among farmers due to their excellent performance in production. By combining the strengths of various aeration methods, if micro-pore aerators are used in conjunction with impeller-type, paddle-wheel, or spray-type aerators, they can complement each other’s advantages and achieve even better aeration results. Aeration machines come in various types, including paddle-wheel, impeller, and spray types. After years of practical testing, micro-pore aeration has proven to offer significant advantages over traditional aeration methods in terms of aeration efficiency and energy consumption.

  The microporous aeration oxygenation machine, also known as microporous aeration oxygenation technology, is a new type of oxygenation technology that follows the traditional water-wheel, impeller, and spray-aeration methods. This device consists of three main components. A Roots blower is used to pressurize air into an air distribution pipe. The compressed air then flows through a plastic hose into the microporous aeration plate, where it is dispersed into the water in the form of tiny microbubbles. As these microbubbles rise from the bottom, a portion of the oxygen dissolves into the water while simultaneously inducing water flow. The resulting vertical convection and rotation of the water body facilitate the exchange between upper and lower layers, ensuring uniform oxygenation throughout the water column.

  An aeration oxygenator is a machine commonly used in fisheries and aquaculture. Its primary function is to increase the oxygen content in water, ensuring that fish do not suffer from oxygen deficiency. At the same time, it inhibits the growth of anaerobic bacteria in the water, thereby preventing water quality deterioration and safeguarding the fish's living environment. Typically, an oxygenator uses its built-in air pump to force air into the water, thus boosting the oxygen level. This device operates by using a power source—such as an electric motor or diesel engine—to drive working components that rapidly deliver "oxygen" from the air into the aquaculture water body. Additionally, it helps eliminate harmful gases, promotes convective exchange within the water, improves water quality conditions, reduces feed conversion ratios, enhances pond activity and primary productivity, and consequently allows for higher stocking densities and increased feeding intensity for cultured species. This, in turn, accelerates growth, significantly boosts per-acre yields, and fully achieves the goal of increasing aquaculture income.


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The relationship between water convection and dissolved oxygen levels in aquatic bodies: The introduction of an aeration device can effectively regulate dissolved oxygen levels.

Although fish floating to the surface can be caused by a variety of factors, in addition to excessive stocking density, overloading the total fish biomass, and poor water quality, the convective properties of water are also a major factor that cannot be overlooked. Simply put, when water temperature is low, its specific gravity (or density) increases, causing it to sink; conversely, when water temperature is high, its specific gravity (or density) decreases, making it float upward. Understanding and mastering the principles of water convection will greatly facilitate the smooth operation of aquaculture. On warm days, after being heated by the sun during the day, the warmer, lighter water tends to stay on top. As the sun sets and the air temperature begins to drop, the upper layer of water cools down, increasing its density, and gradually starts to sink. If the nighttime temperature remains relatively high, the water cools down slowly, and the upper layer won't reach the bottom of the pond until early morning. This is one of the main reasons why oxygen levels tend to drop sharply from late night into early morning on hot days. However, if a heavy rainstorm occurs in the evening, the situation changes dramatically. The cold, heavy rainwater quickly sinks to the bottom of the pond, stirring up sediment, leftover feed, fecal waste, biological residues, and other organic matter from the pond bottom and bringing them into the middle and upper layers of the water. These harmful organic substances rapidly deplete the dissolved oxygen in the water. Before dawn even breaks, the dissolved oxygen in the water may be completely used up, leaving the fish vulnerable to oxygen depletion and causing them to float to the surface—a phenomenon known as "floating and surfacing." Therefore, sudden heavy rainfall in the evening or at night can also lead to oxygen depletion and fish floating to the surface.

2020-11-12