Fish pond oxygenation pump

Fish pond oxygenation pumpApplication Introduction:

The oxygen supply vortex high-pressure air pump model should be matched with the water depth and area of the pond, but the main consideration is the water depth. 3 kW aerator fan, suitable for water depths of 1.4-2.0 meters, 5.5 kW aerator fan, suitable for water depths of 2.0-4.0 meters; If a impeller aerator is used in water depths below 1.3 meters, it will cause the sludge at the bottom of the pond to rise, leading to an increase in biochemical oxygen consumption and a decrease in dissolved oxygen in the pond.

Therefore, in general, it is advisable to install a water jet aerator in ponds with a water depth of less than 1.3 meters. To increase the spray area or directly oxygenate the water.

*A pond with a yield of 500-800 kilograms per mu should be equipped with a 3 kW aerator fan on 3-5 mu of water surface

*A pond with a yield of 800-1500 kilograms per mu and 5-8 acres of water surface should be equipped with a 5.5 kW aerator fan; We can also provide 3-5 meter deep water aeration according to customer requirements.

Fish pond oxygenation pumpCharacteristics of

1. Efficient oxygen storage: Due to the bubbles generated by ultrafine pore aeration, the contact surface with water in the water is extremely large, the upward flow velocity is low, and the contact time is long, resulting in high mass transfer efficiency of oxygen.
2. Activating water bodies: Micro porous aeration and oxygenation devices are like turning water bodies into billions of slowly flowing rivers. Adequate dissolved oxygen enables water bodies to establish natural ecosystems and bring water to life.
3. Restore the self purification function of water bodies: Micro porous aeration oxygenation is bottom oxygenation, while other oxygenation is surface oxygenation. Aquaculture water bodies mainly suffer from bottom hypoxia, and difficult to solve organic matter such as fertilizer sludge, organic excrement, and remaining spoiled feed in the bottom of the water consume a large amount of oxygen. Adequate micro porous aeration oxygenation converts it into organic matter dissolved and decomposed by microorganisms, restoring the self purification function of the water body.
4. Ultra low energy consumption: Due to the use of microporous aeration oxygenation equipment, the mass transfer efficiency of oxygen *, the dissolved oxygen per unit of water quickly reaches about 4.5mg/L, which is less than a quarter of the energy consumption of water trucks or impellers for oxygenation, and can greatly save the electricity cost of farmers.
5. Realize ecological aquaculture and ensure aquaculture benefits: Continuous micro pore oxygenation provides sufficient dissolved oxygen for the water body, restoring and improving the self purification ability of the water body. The natural balance of bacterial and algal phases builds a natural ecology of the water body, stabilizing the survival ability of aquaculture populations and fully ensuring aquaculture benefits.
6. Safety and Environmental Protection: The microporous aeration oxygenation device is installed on the shore with good safety performance and will not cause any pollution to the water body. Other oxygenation methods work in water and are prone to leakage, which may pose potential hazards to human health and fish and shrimp.

Research has shown that when the oxygen content in pool water is above 3mg/L, fish are more likely to live normally; When the oxygen content in the pool water is around 2mg/L, it affects the normal life of some fish; If the oxygen content in the pool water is below 1mg/L, many fish species will feel difficulty breathing and even stop feeding, resulting in a floating head phenomenon. If the oxygen content in the water continues to decrease, it will cause the fish to suffocate and die. So generally, 3mg/L is used as the safe concentration of oxygen content in pool water, 2mg/L is used as the warning concentration, and 1mg/L is used as the dangerous concentration.

Meanwhile, practice has proven that the food intake of fish is directly related to the oxygen content of water. When the oxygen content in pond water is high, the food intake of fish increases, and the two are directly proportional. Under the same feed composition, raising fish in water with abundant oxygen content can make full use of the feed and promote faster fish growth. So dissolved oxygen in water is a very important factor in regulating fish growth.

Under certain external conditions such as air pressure and temperature, the saturation solubility of oxygen in water is constant. At a certain pressure, the lower the temperature, the higher the saturation solubility of oxygen, and the higher the temperature, the lower the saturation solubility of oxygen. At a certain temperature, as the air pressure decreases, the saturation solubility of oxygen decreases, and as the air pressure increases, the saturation solubility of oxygen increases.

So under natural conditions, the sources of dissolved oxygen in fish ponds mainly come from two aspects: one is the photosynthesis of algae and phytoplankton in the water, which accounts for about 90% of the total dissolved oxygen in the water, and the other is the diffusion of oxygen molecules from the atmosphere to the water surface. Research has shown that under conditions of sufficient dissolved oxygen content in water, a fish pond with a depth of about 2 meters per acre can only supply 250-300kg of fish for consumption. Therefore, it indicates that traditional fish pond farming techniques cannot significantly increase fish yield under natural conditions. Therefore, in order to increase the yield of fish farming in ponds, it is necessary to adopt artificial methods to oxygenate the water to increase the oxygen content. To achieve the goal, a high-pressure blower is an essential air source tool.

Fish pond aerator pump/aerator fanMethods of maintenance and upkeep:

1) The motor of the high-pressure fan is directly connected to the impeller and belongs to high speed. The bearings need to be regularly maintained with grease to prevent damage (including the bearings of the impeller)

2) The shaft power and pressure of a motor are directly proportional. To prevent long-term extreme pressure from increasing shaft power and overloading the motor, a pressure relief valve is often used. It is an unloading valve. When the operating pressure of the high-pressure fan exceeds the set pressure of the pressure relief valve, the pressure relief valve will automatically open to release the excess pressure and protect the motor of the high-pressure fan.

3) The internal mechanism of the high-pressure fan is relatively tight, with a small gap between the impeller and the casing, so it is necessary to filter out debris and dust. For miscellaneous items, a fine filter screen is usually installed at the air inlet. For dust, a filter is often used. It often uses filter cartridges with different filtration accuracies according to different usage scenarios. Different filter cartridges have different maintenance methods and service lives, which need to be clarified when ordering.

4) In some special occasions, special protection is also necessary: for example, when using in a sealed environment, attention should be paid to ventilation and heat dissipation; When the ambient temperature (intake temperature is relatively high), it is more important to pay attention to ventilation and heat dissipation, or choose a high-pressure fan that allows for a higher intake temperature.