Positive displacement compressor is an industrial equipment that compresses gas by changing the working volume.
Positive displacement air compressor is an industrial equipment that compresses gas by changing the working volume. It is a type of
positive displacement compressor. The core feature is to convert mechanical energy into gas pressure energy and meet the pressure increase by reducing the gas volume.
Working principle of positive displacement air compressorDuring the working process, the
positive displacement compressor changes the cylinder volume through periodic movement to compress the gas. The specific working process is divided into the following three stages.
1. Inhalation
When the piston moves downward, the intake valve opens and the air enters the cylinder through the filter.
2. Compression stage
When the piston moves upward, the cylinder volume decreases, and the air is compressed and the pressure increases.
3. Exhaust stage
When the pressure reaches the set value, the exhaust valve opens and the high-pressure gas enters the air tank.
Structure of
positive displacement air compressorIncludes cylinder, piston, crankshaft connecting rod mechanism, cooling and lubrication system. The cooling system is used to dissipate heat, and the lubrication system reduces motion friction.
Characteristics of
positive displacement air compressor1. Stable pressure
The output pressure is independent of the speed and is determined by the structural parameters, so it is suitable for industrial applications that require stable pressure.
2. Simple structure
The structure is simple, the maintenance cost is low, and it is suitable for the needs of long-term stable operation.
Application scenarios of
positive displacement air compressors1. Industrial production
Used in metallurgy, food packaging and other fields, providing power source for pneumatic tools and equipment cleaning.
2. Automotive applications
Applications in scenarios such as vehicle braking systems, air conditioning and refrigeration, air suspension, etc., using compressed air to drive the slave pump to work.
3. Construction
Used for concrete mixer power operations.
4. Medical
Provide sterile air for dental clinics, operating rooms, etc. to ensure the normal operation of medical equipment.
