The 37kW Roots blower is a commonly used medium to large pneumatic conveying and aeration equipment in the industrial field. Its core parameters, typical application scenarios, and selection points are as follows:
1、 Core parameters
Airflow range: Suitable for different models (such as 150, 175, 200, etc.) with a wide range of airflow, commonly ranging from 20 to 181.3m3/min. For example, the 150S series offers segmented gears of 20.87~29.03m3/min- The SY-350 model can reach 165.7~181.3m3/min, meeting the needs of multiple scenarios.
Pressure range: The pressure covers 9.8~98kPa, with 34.3~58.8kPa being a typical operating range. For example, 150S supports pressure increase from 34.3kPa to 58.8kPa, while -250n can achieve low-pressure transmission from 9.8kPa to 24.5kPa, adapting to different pipeline resistance requirements.
Speed and noise: The speed is stable in the range of 1450~2900rpm, and the noise level is ≤ 85dB (A). For example, the operating noise of a certain model at 1450rpm is 75dB (A), which can be further reduced by optimizing the impeller dynamic balance.
Structure and Material: Mainstream models use cast iron/stainless steel materials, with a weight range of 300~1500kg. For example, the 150S series weighs about 300kg, while the - SY-350 high flow model weighs up to 1500kg and needs to be selected based on the strength of the installation foundation.
2、 Typical application scenarios
Wastewater treatment: used for oxygen supply in aeration tanks to increase dissolved oxygen concentration. For example, a 37kW fan can drive a microporous aerator to meet the aeration needs of a 5000 ton daily sewage treatment plant, reducing energy consumption by 15% compared to traditional equipment.
Pneumatic conveying: provides a stable gas source in the transportation of powders such as cement and grain. For example, a cement plant uses the -250n model to achieve negative pressure conveying of 30 tons of cement per hour, with a conveying distance of up to 200 meters.
Aquaculture: Oxygen enhancement in fish ponds through nanotube aeration. For example, a 37kW fan can cover 20 acres of water surface, maintain a dissolved oxygen level of ≥ 5mg/L, and increase aquaculture density by more than 30.
Industrial combustion assistance: providing combustion air for boilers and smelting furnaces. For example, a certain steel plant adopts the SW-V300 model, which improves fuel combustion efficiency by 8 and reduces energy consumption per ton of steel by 5.
3、 Key selection points
Working condition matching: It is necessary to clarify the actual air volume and pressure requirements. For example, if the system resistance is 45kPa, a model with a pressure coverage of 50kPa or more (such as the 175 series) should be selected to avoid long-term overload operation of the fan.
Energy efficiency and cost: Priority should be given to products with energy efficiency level 1. For example, a certain brand of fan has a unit air energy consumption 12% lower than ordinary models at a power of 37 kW, saving about 20000 yuan in annual electricity bills.
Material and process: Stainless steel material should be used when transporting corrosive gases. For example, in chemical waste gas treatment, 316L stainless steel models have a lifespan three times longer and maintenance costs reduced by 40% compared to cast iron models.
Maintenance convenience: Prioritize modular design models. For example, a certain model supports online replacement of bearings and gears, reducing the single maintenance time to 2 hours and reducing downtime losses by 60%.
