This article will introduce the high-pressure piston air compressor and the high-pressure screw air compressor respectively.
The piston compressor is one of the early compressor designs, but it is still a highly efficient general-purpose compressor. Piston compressors make the piston move forward in the cylinder through the crankshaft and connecting rod. If only one side of the piston is used for compression, it is called single-acting. If the upper and lower sides of the piston are used, it is called a double-acting type.
The work of the piston compressor is the continuous change of the working volume formed by the cylinder, the valve and the piston that reciprocates in the cylinder. If the volume loss and energy loss in the actual work of the piston compressor are not considered (that is, the ideal working process), the work completed by the crankshaft of the piston compressor per revolution can be divided into the suction, compression and exhaust processes.
Working principle of piston compressor：
Compression process: the piston moves upward from the bottom dead center, the suction and exhaust valves are closed, and the gas is compressed in the closed cylinder. As the cylinder volume is gradually reduced, the pressure and temperature gradually increase until the gas pressure and exhaust in the cylinder The pressure is equal. The compression process is generally regarded as an isentropic process.
Exhaust process: the piston continues to move upward, causing the gas pressure in the cylinder to be greater than the exhaust pressure, the exhaust valve opens, and the gas in the cylinder is pushed out of the cylinder by the piston and enters the exhaust pipe at equal pressure until the piston moves to the top stop point. At this time, due to the spring force of the exhaust valve and the weight of the valve plate itself, the exhaust valve is closed and the exhaust ends.
Application industry:
food
Beverage factory bottle washing machine, mixing liquid, conveying liquid, liquid tanker unloading, bakery and confectionery, dairy products, conveying milk, food packaging, waxed food processing, etc.
agriculture
Spraying insecticides and pesticides, tree pruning, smoking various agricultural products, forklifts for harvesting agricultural products, cottonseed oil, spraying food, oil refineries, sea rescue, meat packaging, sausage filling, etc.
other
Artificial snow, asphalt extraction, car maintenance, automobile manufacturing, bridge building, cement manufacturing, chemical plants, clay and ceramics, concrete construction, engineering contracting, blasting, power plants, foundation excavation, forging workshops, casting workshops, furniture factories , Glass factory, medical and laboratory, steel factory, dry cleaning and cement factory, wood processing, water work, sheet metal space, mine, monument and stone carving, paint factory, paper mill, pharmaceutical manufacturing, factory maintenance and cleaning, printing All gas-driven equipment such as factories, rubber factories, auto repair stations, drilling, textile mills, water treatment, wood processing, and tobacco industries.
advantages of piston type medium and high pressure air compressor：
Wide applicable pressure range: Piston compressors can be designed into low pressure, medium pressure, high pressure, and ultra-high pressure according to different working conditions;
At constant speed, when the exhaust pressure fluctuates, the displacement of the piston compressor can be basically kept unchanged, and the performance is stable;
High compression efficiency: The process of compression by a piston compressor is a closed system, and its compression efficiency is high;
Strong adaptability: wide range of displacement, the piston compressor of the same specification can be adapted to compress other media with a little modification for wider range use;
Simple structure: easy to move, operate and maintain
Disadvantages of piston type medium and high pressure air compressor
The disadvantages of the piston type medium and high pressure air compressor are that the volume is too large, and the machine is large and heavy.
The speed is not high, the structure is complicated, the wearing parts are many, the maintenance is large, and the exhaust is not continuous, which will cause the airflow pulsation.
Let's introduce the high pressure screw air compressor
1. Durable and stable air end: two-stage integrated air end, third-generation asymmetric rotor technology; suitable for medium-pressure compression ratio matching, high volumetric efficiency; adopt heavy-duty bearings, and the rotor is well stressed; two-stage rotors are respectively passed gear drive, so that each stage of the rotor has the best linear speed; using a large rotor, low speed design, low noise and low vibration;
2. Permanent magnet motor, save your electricity cost, IP54, B-level temperature rise is suitable for harsh environments such as large dust and high temperature;
3. Coupling connection, more energy saving;
4. Multiple noise reduction design, calculated according to noise theory, with special flame retardant muffler cotton inside, to reduce the noise of the unit and provide a quieter environment for use.
5. Independent air intake, reduce intake resistance, multi-function intake valve group, start without load, motor load is small. Use high-efficiency filters to effectively filter particulates in the air;
6. Centrifugal fan with high-pressure plate-fin cooler has high wind pressure, low noise, independent external suction, exhaust air upward through a specially designed air duct to prevent hot air from returning; plate-fin cooler has high heat exchange efficiency and internal pressure The loss is small, which can make the oil fully exchange heat, no heat zone;
7.The conventional maintenance parts (three filters) adopt openable door panels, the installation position is easy to replace, and the maintenance is more convenient
8.Specially designed main engine oil supply system to stabilize the oil supply pressure and ensure that the unit (especially the bearing) can get sufficient oil supply in the later period of long-term operation, the unit operates more stable and has a longer life.
9.High temperature shutdown protection;
10.Motor overload protection;
11. Overpressure safety decompression system;
12. Optimized shock absorption pad to reduce vibration and noise;
13.Double frequency conversion system is adopted, which is more energy-saving; multi-channel pressure sensor and multi-channel temperature sensor to comprehensively detect the running state of the unit; intelligent controller with color screen display, user interface is more friendly, control is more accurate and reliable.
14.The unit is equipped with an Internet of Things system, which can monitor the machine status on the mobile phone.
Key words: high pressure air compressor, high pressure compressor; 4500 psi compressor; 4500 psi air compressor for sale; 300 bar air compressor
