The fish pond aerator is an indispensable fishing machine for fish farmers. Only when it is used correctly can it play its major role.
The power supply used by the fish pond aerator is 380-volt three-phase electricity. Therefore, we must pay attention to the safety of electricity use. The knife switch should be installed in a sheltered place to prevent the switch from being damp and leaking electricity. The aerator can be seen at the switch position, so that if an abnormal situation is found when the machine is turned on, the switch can be turned off immediately. The wires from the fish pond aerator to the knife switch must be cables produced by regular manufacturers, generally 3×1.5 cables.
At present, the impeller type aerator is widely used, which has three functions: aeration, aeration, and adjustment of water temperature. The impeller rotates and stirs the water body to dissolve the fresh air in the atmosphere into the water, so as to achieve the purpose of increasing oxygen; at the same time, the rotating impeller presses the upper layer of water to the lower layer, which not only transports the fresh air down, but also discharges the waste gas at the bottom of the pond; When the weather is hot, the temperature difference between the upper and lower water layers is large, and stirring the water body can balance the water temperature.
The impeller type aerator is divided into two specifications: 1.5KW and 3KW. The 1.5KW aerator can be used for fish ponds under 5 mu, and the 3KW aerator should be used for fish ponds above 5 mu. If the fish pond area is 10 mu In the above cases, one can be installed at each end of the fish pond. After the aerator is installed, the gear oil should be filled into the gear box as required. After the aerator is put down in the fish pond, pay attention to check whether the impeller is balanced into the water. The impeller can be balanced by pouring water into the three floating balls. The impeller should be submerged in the water for about 1 cm.
Only by mastering the correct starting time can the best effect of oxygenation be achieved. Some fish farmers only turn on the machine when they find that the fish is floating. This is not correct. The fish has been damaged due to lack of oxygen.
The correct way to start the machine should be before the occurrence of hypoxia, so as to ensure that the fish are not hypoxic and conducive to their healthy growth. In fact, fish farmers have experience in this area. Under normal circumstances, it is easy to lack oxygen in the second half of the night. The weather is sultry, especially before the rain, when the air pressure is low, it is easy to lack oxygen. When the weather changes sharply, it is easy to lack oxygen and flood the pond. Hypoxia is also prone to occur.
Therefore, it should be turned on for 3 to 4 hours or more in the second half of the night. It should be turned on in time when the weather changes, and it should be turned on after fertilization. In short, it should be turned on in time as long as hypoxia is found. Also, when the weather is hot, it can be turned on for a short time at noon to adjust the water temperature. But be careful, don't turn on the phone when the weather is clear and evening, because the photosynthesis of phytoplankton in the water can produce a lot of oxygen, and when you turn it on, it will drive out the oxygen in the water.