Introduction and application of Roots blower in aquaculture
Aquaculture Roots blower is a specialized blower used in the field of aquaculture. The following is a detailed introduction and application analysis of it:
1、 Working principle
The aquaculture Roots blower belongs to the positive displacement blower, and its working principle is to use two blade shaped rotors (usually three blades) to compress and transport gas through relative motion in the cylinder. This type of fan ensures continuous gas flow and reduces leakage through small gaps between the rotors. During the rotation of the rotor, gas is taken away from the suction port. When it moves to the vicinity of the exhaust port and connects with the exhaust port, there is a sudden increase in pressure in the working volume due to the reflux of high-pressure gas, and then the gas is transported to the exhaust channel. The two rotors work alternately in sequence to achieve continuous gas transportation.
2、 Structural composition
The Roots blower for aquaculture mainly consists of five parts: casing, wall panel, impeller, oil tank, muffler, etc
1. Chassis: plays a supporting and fixing role.
2. Wall panel: used to connect the casing and impeller, and support the rotation of the impeller, while also providing end face sealing effect.
3. Impeller: It is the rotating part of a fan, divided into two types: two bladed and three bladed. The three bladed impeller gradually replaces the two bladed impeller due to its advantages of smaller air flow pulsation, lower noise, and smoother operation.
4. Oil tank: used to store lubricating oil for lubricating gears and bearings.
5. Muffler: Used to reduce the noise generated by airflow pulsation during the inlet and outlet of the fan.
3、 Characteristics
1. Simple structure: The aquaculture Roots blower has a compact structure, is easy to manufacture, and is easy to maintain and upkeep.
2. Smooth operation: Due to the use of a three bladed rotor structure and a reasonable structure at the inlet and outlet of the casing, the fan has low vibration, low noise, and runs smoothly.
3. Gas is not contaminated: The rotors do not come into contact with each other and are sealed by tightly controlled gaps, so the discharged gas is not contaminated by lubricating oil. It is suitable for situations such as aquaculture that require pure gas.
4. Easy adjustment: The air volume of the fan can be conveniently adjusted by adjusting the speed or changing the impeller diameter to meet different aquaculture needs.
4、 Application
Roots blowers for aquaculture are widely used in outdoor fish pond oxygenation, greenhouse aquaculture oxygenation, high-density factory farms, and high-density canvas pond aquaculture. By providing sufficient oxygen to the water body and increasing the dissolved oxygen content of aquaculture water, it helps to promote the growth and reproduction of fish and improve aquaculture efficiency.
5、 Selection and Installation
1. Selection: Choose the appropriate Roots blower model based on the size of the fish pond, the type and quantity of fish being farmed, as well as the required air volume and pressure parameters. Common models include SR50-200, with a range of air volume and pressure generally between 0.6132m3/min and 1098kpa.
2. Installation: Install the Roots blower closer to the water body to reduce the length and resistance of the conveying pipeline. At the same time, ensure good sealing between the fan and equipment such as air pipes and connectors to avoid gas leakage. During installation, it is also necessary to prepare fixed brackets or steel supports and ensure their stability and reliability.
6、 Maintenance and upkeep
1. Regular inspection: Regularly check whether the electrical connections of the fan are stable and reliable, and eliminate problems such as short circuits and poor contacts in the circuit. Soft brushes and vacuum cleaners can be used for cleaning, but avoid using highly corrosive cleaning agents.
2. Replace lubricating oil: Under normal conditions, the lubricating oil must be replaced after the unit has been running for 1000 hours. Pay attention to whether the cooling of the lubricating oil is normal and the quality of the lubricating oil.
In summary, the Roots blower for aquaculture has been widely used in the field of aquaculture due to its simple structure, smooth operation, uncontaminated gas, and convenient regulation. By selecting and installing correctly, as well as regular maintenance, it can ensure long-term stable operation and meet the needs of aquaculture.
