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Created on 12.02
Energy saving measures for compressed air systems
I. Equipment Optimization
Adopt High-Efficiency Compressors:
Use two-stage compression screw air compressors with first-class energy efficiency, which can save 15% more electricity than second-class and 30% more than third-class efficiency models.
Consider permanent magnet variable frequency air compressors, which can improve energy savings by 10-30%.
Explore centrifugal air compressors and other high-efficiency models, which can achieve isentropic efficiencies of over 86% and save 30%-60% energy under different operating conditions compared to traditional fixed-speed machines.
Optimize Motor Configuration:
Select energy-efficient motors to improve their inherent energy efficiency.
Optimize the transmission devices between motors and compressors to reduce energy losses during mechanical transmission.
II. System Design
Grade Supply Pressures:
Choose different compressor models for graded pressure supply based on the pressure requirements of different industries and equipment, avoiding energy waste caused by uniformly increasing system pressure.
Optimize Pipeline Design:
Shorten pipeline distances to reduce pressure drops.
Use looped pipe networks instead of branched ones to balance pressures.
Employ new aluminum alloy rapid pipelines with smooth inner walls and corrosion resistance to lower flow resistance and reduce leakage points.
Control Pipeline Leakage:
Regularly detect and repair leaks using ultrasonic leak detectors to prevent unnecessary waste of compressed air. A leakage point with a diameter of 1mm can waste thousands of yuan in electricity costs annually at a pressure of 0.7MPa.
III. Operation Management
Centralized Intelligent Control:
Implement centralized intelligent control for multiple air compressors to automatically adjust the number of running units based on air demand, avoiding "over-sizing" or frequent loading/unloading, and achieving constant pressure supply with energy savings of 3%-10%.
Variable Frequency Speed Control Technology:
For applications with fluctuating air demand, use variable frequency speed control technology to precisely match air production with consumption by adjusting motor speed, eliminating or significantly reducing idle energy consumption.
Intake Air Pre-treatment:
Improve exhaust volume and reduce unit production energy consumption through pre-treatment measures such as lowering intake air temperature and removing moisture.
IV. End-Use Control
Supply Air On Demand:
Evaluate and set reasonable supply pressures for end-use equipment to avoid over-supply.
Replace Inefficient Equipment:
Substitute inefficient blowing nozzles, pneumatic tools, etc., with high-efficiency alternatives, such as using Venturi nozzles instead of traditional compressed air blowing guns to achieve the same effect with significantly reduced air consumption.
Standardize Operating Habits:
Strengthen employee energy-saving awareness to ensure compressed air valves are closed during non-production periods and eliminate unreasonable air usage, such as using compressed air for personnel cooling.
V. Waste Heat Recovery
Recover Compression Heat:
Install waste heat recovery devices to capture the waste heat generated during air compressor operation for process heating, space heating, or domestic hot water, etc. The recovered heat can account for over 70% of the compressor's input power, yielding significant energy-saving benefits.
For product or sales enquiries please contact：
Shanghai A-Turbo Energy Technology Co., Ltd
Tel: +86 13816886438
Email: zhu@a-turbocn.com
Website: www.a-turbocn.com
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