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Reciprocating (piston) compressors, rotary (rotary) compressors (turbine, water ring, turbine) compressors, axial compressors, jet compressors and screw compressors, etc. Among them, the most widely used is a reciprocating (piston) compressor.
How to classify piston compressors?
There are many methods for classifying piston compressors, and the names are also different. There are usually the following classification methods:
(1) According to the cylinder position of the compressor (cylinder center line), it can be divided into:
(1) Horizontal compressor, the cylinders are all lying (the cylinder center line is horizontal).
(2) The vertical compressor cylinders are all arranged upright (upright compressor).
(3) Angle compressor, the cylinder is arranged in different angles such as L-shaped, V-shaped, W-shaped and star-shaped.
(2) According to the number of cylinders (stages) of the compressor, it can be divided into:
(1) Single-stage compressor (single stage): The gas is compressed once in the cylinder.
(2) Two-stage compressor (two stages): The gas is compressed twice in the cylinder.
(3) Multi-stage compressor (multi-stage): The gas is compressed multiple times in the cylinder.
(3) According to the arrangement method of cylinders, it can be divided into:
(1) Tandem compressor: A multi-stage compressor in which several cylinders are sequentially arranged on the same shaft, also called a single-row compressor.
(2) Parallel compressor: A multi-stage compressor in which several cylinders are arranged in parallel on several shafts, also called a double-column compressor or a multi-row compressor.
(3) Multi-compressor: A multi-stage compressor is composed of a series and a parallel type.
(4) Symmetrical balance compressor: The cylinders are arranged horizontally on both sides of the crankshaft with the crankshaft journals 180 degrees apart from each other, arranged in an H-shape, and the inertial force can be basically balanced. (Large compressors are moving in this direction).
(4) According to the compression action of the piston, it can be divided into:
(1) Single-acting compressor: Gas is compressed only on one side of the piston, also called a single-acting compressor.
(2) Double-acting compressor: Gas can be compressed on both sides of the piston, also called double-acting or multi-acting compressor.
(3) Multi-cylinder single-acting compressor: Compressor with one side of the piston and a compressor with multiple cylinders.
(4) Multi-cylinder double-acting compressor: a compressor that uses two sides of the piston for compression and has multiple cylinders.
(5) According to the final exhaust pressure of the compressor, it can be divided into:
(1) Low-pressure compressor: The final exhaust pressure is 3 to 10 gauge.
(2) Medium-pressure compressor: The final pressure of the exhaust gas is between 10 and 100 gauge.
(3) High-pressure compressor: The final pressure of the exhaust gas is between 100 and 1000 gauge.
(4) Ultra-high pressure compressor: The final exhaust pressure is above 1000 gauge.
(6) According to the size of the compressor displacement, it can be divided into:
(1) Micro compressor: The gas volume is below 1 m3/min.
(2) Small compressor: The gas transmission amount is 1 to 10 m 3 /min or less.
(3) Medium-sized compressor: The gas transmission capacity is from 10 m 3 / min to 100 m 3 / min.
(4) Large compressor: The gas transmission capacity is 100 m 3 / min. (7) According to the speed of the compressor, it can be divided into:
(1) Low-speed compressor: below 200 rpm.
(2) Transfer number compressor: at 200 to 450 rpm / at 50 minutes.
(3) High-speed compressor: 450 to 1000 rpm.
(8) According to the type of transmission, it can be divided into:
(1) Electric compressor: powered by ELECTRIC MOTOR;
(2) Pneumatic compressor: powered by steam engine;
(3) Compressors powered by internal combustion engines;
(4) Compressors powered by steam turbines.
(9) According to the cooling method, it can be divided into:
(1) Water-cooled compressor: The heat in the compression process is guided by the circulating flow of the cooling water.
(2) Air-cooled compressor: uses its own wind power to guide the heat away from the compression process.
(10) According to the transmission method of the power machine and the compressor, it can be divided into:
(1) The rigid body coupling of the device is directly driven by a compressor or a close-coupled compressor.
(2) Device flexible coupling direct drive compressor.
(3) Reduction gear transmission compressor.
(4) Belt (flat belt or V-belt) drive compressor.
(5) Free piston compressor without crankshaft-link mechanism.
(6) The positive body structure compressor--that is, the motor of the motorcycle compressor power machine is integrally formed with the compressor seat, and a common crankshaft compressor is used.
In addition, the compressor has a fixed and mobile type, and there is a crosshead without a crosshead.
Compressors are classified according to their different structural forms as follows: According to their principles, they can be divided into: