Reciprocating compressors consist of the following elements: a working cylinder, piston, injection valves, crank mechanism with the crankshaft. The principle of reciprocating compressors simple: first, by the action of a crank mechanism to the piston of a reciprocating motion of the latter. In this case there is a scattered pressure and the cell enters the air (gas). During the return piston pressure increases, and when the pressures are greater than the drag force springs, clamping the discharge valve, is pushing air (gas) into the duct. Feature of the piston compressors is the presence of air or water cooling, which prevents the spontaneous combustion of lubricating the compressor. Reciprocating compressors are divided into several basic types: single-cylinder; multiple cylinders. Depending on the layout of the cylinder compressors are classified as: vertical, horizontal; V-shaped; W-shaped; L-shaped. In smaller compressors most common V-shaped pattern.
In large double-acting compressors most common L-shaped arrangement of the pistons. In addition, reciprocating compressors compressors are divided into single-or double-acting. In single-piston piston compressor runs only on one side, and, respectively, in the compressors of double action – the two sides. Depending on the compression process are divided into single-stage compressors and multi-stage compression. One important feature of reciprocating compressors is the system drive. Depending on the type of piston compressors are distinguished: direct drive, belt-driven. An example of modern reciprocating compressors can be used compressors Remeza , providing high efficiency and are characterized by reliability in operation. Screw compressors Screw compressors, along with piston received also widespread.
This is due to the following factors: the number of pairs of screw compressors friction is minimum (impact on life); screw compressors are more resistant to overheating than, for example, Piston, rotary screw compressors are more simple to use and install; screw compressors are economical. The presence of such positive qualities screw compressors due to their design and function. Screw compressors consist of driving and driven rotors, rotating toward each other. Compressed air or gas is by means of rotating to different sides of the rotors. Their rotation provides a central rotor in the form of a screw. Each element has a certain degree of pressure increase. This value depends on the length, pitch and shape of a pint of the outlet. Unique property of screw compressors is that they lack mechanical strength, causing imbalances. This allows the screw compressor to operate at very high speeds of rotation of the shaft, which provides high performance at small sizes. Initially, the compressor of this type used symmetrical screw. Today, the screw has acquired a variety of asymmetric helical (spiral) structures, which significantly increase the efficiency of compressors of this type. Screw compressors subdivided into several types: screw compressors, single screw, screw compressors in a double screw. Depending on the type of transmission is divided: screw compressors with direct drive, screw compressors belt drive. Screw compressors are most effective for large and medium-pressure conditions. An example of the modern screw compressors can be used compressors Remeza , providing high performance and characterized by high reliability in operation.