The oil-free air compressor used in the laboratory refers to the air compressor specially used in the laboratory environment of some universities and scientific research institutions. The machine is required to be precise, more reliable, environmentally friendly and quiet, and compressed air fresh and clean.
Oil-free air compressors used in laboratories are generally piston air compressors. Their working principle is: when the motor single-shaft drives the compressor crankshaft to rotate, through the transmission of the connecting rod, the piston is self-lubricating without adding any lubricant. In reciprocating motion, the working volume formed by the inner wall of the cylinder, the cylinder head and the top surface of the piston will periodically change, thereby achieving the effect of compressed gas.
Due to the particularity of the laboratory environment, especially the very high requirements for working noise, for the oil-free air compressor used in the laboratory, the following three technical standards must be met:
1. Low noise: The laboratory air compressor must be controlled within 60 decibels. In order to let everyone understand how much noise is 60 decibels, let's take an example: the sound of ordinary household air-conditioning compressors (about 55 decibels), the staff will not feel uncomfortable working in such an environment. Given that most laboratories require a quiet environment, air compressors with a noise higher than 60 decibels are not suitable for use in a laboratory environment.
2. Air dryness and cleanliness: application of all oil-free lubrication technology, as well as compressor air chamber wall treatment and air storage tank internal spray treatment technology, equipped with a good air filter and oil-water separator to ensure that the output air is more Clean and fresh. If a non-heat regeneration dryer is installed, the air can be dry and water-free.
3. Exhaust pressure range: The industry standard stipulates that the exhaust pressure of the oil-free air compressor used in the laboratory must reach 7 Bar. In other words, the exhaust pressure range must be between 0-7 Bar.