The fish pond aerator is a device that drives the working parts through a power source such as a diesel engine or an electric motor, and quickly transfers the "oxygen" in the air to the aquaculture waters. It can comprehensively utilize physical, chemical, biological and other functions. It can not only solve the problem of fish floating head caused by insufficient oxygen in pond culture, but also eliminate harmful gases, improve fishery activities and primary productivity, promote convective exchange in waters, and improve water quality. There are many types of aerator products, their characteristics and working principles They are also different, the oxygen-enhancing effect is also very different, and the scope of application is also different.
Producers can choose appropriate aerators according to different breeding systems and according to the demand for dissolved oxygen to obtain good economic benefits.
The application of fish pond aerators in aquaculture production is more and more extensive, but some fishery practitioners do not yet understand its working principle, type and function, and are blind and arbitrary in actual operation. Here, only by first understanding how it works can you truly grasp how to use it. As we all know, the purpose of using an aerator is to increase dissolved oxygen in the water body, which includes the solubility and dissolution rate of oxygen. Solubility includes three factors: water temperature, salt content of water, and oxygen partial pressure. The dissolution rate includes three factors: the degree of unsaturation of dissolved oxygen, the contact area and method of water-gas, and the motion state of water. Among them, the water temperature and the salt content of the water are in a stable state of the water body and generally cannot be changed. The unsaturation of dissolved oxygen is a factor that needs to be changed, and it is also the current state of the water. Therefore, in order to increase oxygen in the water body, it is necessary to directly or indirectly change the partial pressure of oxygen, the contact area and method of water in one breath, and the movement state of water.
In this case, the measures to be taken when designing the aerator are as follows:
1) Disperse the water into small water droplets and spray the air, and the water-air increases the contact area.
2) Utilize mechanical parts to stir the waters to promote convective exchange and junction renewal.
3) Disperse the gas into the microbubbles by negative pressure inhalation and push it into the water.