Answer: It is mainly used in medical, food, electronics, chemical, textile, and other industries where high air quality is required.
A. Higher B. Lower C. Same as oil injection air compressor D. The answer cannot be determined: A Analysis: The manufacturing cost of oil-free air compressors is usually high, and the initial investment is large, but the long-term maintenance cost is low.
Answer: It uses water as the lubricant, eliminating the need for oil and reducing the risk of contamination.
A. Increase exhaust temperature B. Avoid dirt that leads to reduced efficiency C. Increase noise D. Shorten equipment life Answer: B Analysis: Cleaning the cooler can prevent the accumulation of dirt and maintain efficiency.
A. Large flow and high power are conducive to energy conservation B. Compact structure and good sealing effect C. Smooth operation and reliable operation D. These are all answers: D. all of the above are