Introduction to L Series Roots Blower - Mingfeng Machinery
Release time:
2017-08-14
The L-type Roots blower is a high-efficiency and energy-saving Roots blower. It is the ninth batch of energy-saving products promoted by the state and is a volumetric operation blower. It uses a pair of involute lobes that rotate synchronously to transport gas, maintaining a constant flow when the air delivery resistance changes.
Introduction to L-type Roots Blower
The L-type Roots blower is an efficient and energy-saving Roots blower, which is the ninth batch of energy-saving products promoted by the state. It is a volumetric operation blower. It uses a pair of involute waist-shaped blades to synchronously rotate and transport gas. When the air delivery resistance changes, the flow rate remains unchanged. The components of the L series Roots blower have strong compatibility, high standardization, reasonable structure, high efficiency, and reliable use. It is convenient for users to select models, install, maintain, and equip spare parts. Its performance covers a wide range, with flow rates from 0.6m3/min to 711m3/min, and a maximum pressure rise of 49KPa.
Main Structure of L-type Roots Blower The main structure and materials of the L-type Roots blower: This model of Roots blower mainly consists of six major parts: shaft, impeller, bearing, synchronous gear, coupling, and shaft sleeve. Impeller: The impeller profile adopts a composite line type, with a high volumetric utilization coefficient, perfect meshing, low leakage, high efficiency, large flow, and low noise. Bearing: A 3000-type double-row spherical roller bearing is selected as the positioning end near the coupling end. A 32000-type single-row cylindrical roller bearing is selected as the free end near the gear end to adapt to the friction generated by thermal expansion. The conveying medium of the L-type Roots blower The L-type Roots blower mainly conveys clean air, clean gas, sulfur dioxide, and other inert gases. It can also produce and transport other flammable, explosive, corrosive, toxic, and special gases as needed.
Specific Advantages of L-type Roots Blower
1. The L-type Roots blower belongs to volumetric operation blowers. During use, as the pressure changes, the flow rate changes very little. However, the flow rate varies with the speed. Therefore, the pressure selection range is very wide, and the flow rate can be achieved by selecting the speed. It has characteristics such as large gas delivery volume and safety and reliability.
2. When the pressure is adjusted within the allowable range, the flow rate changes very little, and the pressure selection range is very wide, with the characteristic of forced gas delivery. The conveying medium is oil-free, with a simple structure, convenient maintenance, long service life, and low vibration. Safe operation and long service life are major features of our factory's Roots blower products.
3. The impeller operates without friction inside the body and does not require lubrication, ensuring that the discharged gas is oil-free. It is an ideal pneumatic conveying gas source for industries such as chemicals and food.
4. The structure of the Roots blower determines that its mechanical friction loss is very small. Because only the bearings and gear pairs have mechanical contact in material selection, the rotor, casing, and gear ring have sufficient mechanical strength.
5. The rotors of our factory's Roots blowers have undergone static and dynamic balance verification. The finished product operates smoothly with minimal vibration.
6. This Roots blower has a higher speed, and the gaps between the rotors and between the rotor and the body are small, resulting in less leakage and higher volumetric efficiency. Our factory has strong processing and assembly technology, ensuring reasonable and uniform gaps, achieving high volumetric efficiency without causing friction due to thermal expansion inside the body.
7. Lubrication uses splash lubrication from the main and auxiliary oil tanks, which not only makes lubrication more reliable but also effectively improves the service life of the bearings.
8. The intake and exhaust ports adopt a spiral structure and are equipped with silencers, making the intake and exhaust pulsation smooth, with low vibration and noise. Debugging of L-type Roots Blower Before using the Roots blower, it must be debugged to effectively utilize the Roots blower and better serve the production of enterprises.
The following is a detailed introduction to the debugging steps and precautions for the L series Roots blower.
Lubrication and Cooling Before Debugging Before conducting the no-load debugging, remove the intake and exhaust valves of the Roots blower, wrap them with clean plastic cloth, and store them in a cool and dry place. Before debugging, inject the specified grade of lubricating oil into the gearbox to the oil level position; the lubricating oil serves both lubrication and cooling purposes; and inject an appropriate amount of grease on the drive side. No-load Debugging of the Roots Blower Open the cooling water and lubricating oil pumps, and after the water pressure, water temperature, oil pressure, and oil temperature are normal, start the no-load debugging. Manually rotate the blower 2-3 turns to confirm flexibility and no obvious obstruction, then briefly start the motor to confirm the correctness of the motor rotation direction. Once everything is normal, start the motor, and the blower operates. During operation, pay attention to the oil temperature and oil pressure to ensure that the cooling water and lubricating oil are normal. Measure the vibration and temperature of the motor and blower bearings at intervals, and the no-load debugging time should be no less than 2 hours. Load Debugging Method Load debugging (using air as the debugging medium), reinstall the removed intake and exhaust valves, isolate the inlet pipeline with a blind plate, and ensure the outlet is unobstructed; before starting, manually rotate a few turns, feeling light; open the vent valve. Start the blower, and conduct load debugging for 2 hours, monitoring the same items as in the no-load debugging.
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