Analysis of Roots blower models and parameters (approximately 1200 words)
1、 Roots blower classification system
(Elaborate on the classification criteria based on structural form, pressure rating, and transmission mode, such as:
-Vertical/Horizontal Structure: Characteristics of JGR/JGS Series Representative Models
-Differences in applicable scenarios between low-pressure type (≤ 49kPa) and high-pressure type (≥ 58kPa)
-Comparison of Efficiency between Direct Transmission and Belt Transmission
2、 Comparison Table of Mainstream Model Parameters
(Including comparison of typical model parameters, such as:
|Model | Flow rate (m3/min) | Pressure (kPa) | Power (kW) | Speed (rpm)|
|------|-------------|----------|---------|----------|
| JGR-50 | 0.5-3.2 | 9.8-58.8 | 0.75-11 | 1450-1750 |
| -100 | 5-15 | 49-98 | 15-45 | 980-1450 |）
3、 Key points of selection technology
(In depth analysis of altitude correction coefficient, medium temperature compensation formula, and parallel operation parameter superposition principle)
4、 Special model application cases
(List special parameter configurations such as anti-corrosion and food grade oil-free types for sewage treatment)
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Second article: In depth interpretation of Roots blower models and parameter tables (outline+core paragraphs)
**Core paragraph: Hidden information mining in parameter tables**
Taking a brand parameter table as an example, analyze the practical significance of the "flow pressure" curve:
-When dealing with working conditions at an altitude of 2000 meters, the actual flow rate needs to be calculated using the formula Q correction=Q standard x (P local/P standard)
-Example: Calibration parameter 10m3/ min@49kPa The equipment has an actual flow rate of 7.62m3/min in the Lhasa area, which is 10 times (77.2/101.3)
**Warning of selection errors**
-Avoid selecting solely based on motor power: Under the same power, the efficiency of the three bladed type is 12-18% higher than that of the two bladed type
-Frequency conversion modification restriction: The lower limit of the speed of ordinary models shall not be lower than the rated value of 60, and special design of the bearing system is required
