The Roots blower for fish pond oxygenation is a widely used oxygenation equipment in aquaculture. Its working principle, characteristics, and application advantages are as follows:
1、 Working principle
Roots blower belongs to the positive displacement fan, which rotates relative to each other in the cylinder through two three bladed impellers, forming a vacuum to suck in air and compress it before forcibly pressing it into water. The gap between the impeller, casing, and wall panel ensures gas delivery and continuous oxygenation.
2、 Core Features
1. Oxygenation
By using forced air supply, the oxygen dissolution efficiency is increased by 20-30% compared to traditional air pumps, making it suitable for high-density aquaculture scenarios.
2. Structural stability
Three blade impeller design combined with CNC machining ensures constant impeller clearance, low vibration, low noise (operating noise ≤ 50 decibels), and long service life.
3. Significant energy savings
Compared with traditional oxygenation methods, energy consumption is reduced by 60-80%. For example, a 2.2kW device can cover 30-40 acres of water surface.
4. Water quality improvement
The bubble flow has a wide range (spreading to 3-4 meters when the water depth is 2 meters), accelerates the oxidation and decomposition of organic matter, maintains dissolved oxygen ≥ 6.5mg/L, and reduces the occurrence of diseases.
3、 Application advantages
1. Widely applicable scenarios
Suitable for high-density aquaculture environments such as ponds, reservoirs, and net cages, especially for adult fish farming with high demand for dissolved oxygen.
2. Improvement of breeding efficiency
It can shorten the breeding cycle (such as stocking 80000 to 100000 South American white shrimp per mu, with a yield of 1000kg), improve the quality and survival rate of aquatic products.
3. Easy to maintain
The structure is simple, and regular replacement of lubricating oil and cleaning of the filter screen can maintain operation, with low maintenance costs.
4、 Selection and usage suggestions
1. Select based on breeding scale
Small fish pond (small area, shallow water): Choose a model with moderate air flow and low pressure.
Large scale breeding farms (large area, deep water): models that require high air volume and pressure (such as SR50-200).
2. Installation details
The cable should be selected from a legitimate manufacturer's product (such as 3 × 1.5 specifications) to ensure electricity supply.
The layout of the aeration disc should be reasonable to ensure even distribution of oxygen.
3. Supporting use
It can be combined with a impeller aerator to achieve three-dimensional oxygenation and improve the overall oxygenation effect.
