Comparison between piston air compressor and screw air compressor

Piston air compressor and screw air compressor performance comparison piston engine noise, and maintenance inconvenience, most piston machines often have problems during use, so it brings great inconvenience to the user. At the same time, it can reduce the production cost of the plant, increase economic efficiency, facilitate equipment management, beautify the company's environment, improve the company's image, eliminate existing piston air compressors with high-efficiency and high-reliability screw compressors, and build an advanced economy. The air compressor station is an inevitable trend of the factory's expanding development in the future.

The basic criteria for choosing a compressor are economy, reliability and safety (two certificates system).

Performance comparison:

Old-fashioned piston air compressors have poor economical and reliable operation. Piston air compressor is a kind of model that most users are familiar with. In the very early stage, it is a product that everyone agrees with, but with the continuous innovation of technology, the emergence of a new type of air compressor, the shortcomings of piston air compressor More and more prominent, compared with the screw air compressor:

a. Piston air compressors have many wearing parts such as air valves, pistons, piston rings, connecting rods, etc. The reliability of continuous operation is poor. On the one hand, it will affect production, and on the other hand it will increase maintenance and management costs.

b. Compared with screw air compressors, piston air compressors have low efficiency, especially long-term continuous operation, and their economical efficiency is worse. Since many of the compression chambers formed by piston air compressors are wearing parts, the wear and damage of these wearing parts will cause greater leakage when the gas is compressed, which ultimately leads to a reduction in the efficiency of the compressor. Since there are no wearing parts in the screw compressor that affect the efficiency of the machine, the pair of rotors that perform the compression will not wear due to the characteristics of their own structure. Therefore, long-term continuous operation is much more economical than piston air compressors.

c. Piston air compressors are reciprocating motion mechanisms, which have irremovable inertial forces. Therefore, the vibration during operation is large and the noise is high. A larger piston air compressor needs a special fixed foundation when it is installed. The screw air compressor is a rotary motion mechanism with good balance, low vibration, low noise, no need to install foundation, and also avoids pollution to the working environment.

d. Piston air compressor intermittently supplies air intermittently. When operating, the air flow pulsation is large. The screw compressor has high rotation speed, stable gas transmission, no air flow pulse, and can meet the requirements of users with higher gas requirements.

e. There is no automatic control system for piston air compressors. Screw compressors have perfect automatic control and protection systems. They belong to electromechanical integration products, which facilitate the maintenance and management of equipment and minimize energy consumption.

f. The screw air compressor is a highly centralized product with a small overall structure. It does not have a complicated piping system for a piston air compressor and can beautify the company's production environment.

The types of models used are too many and too scattered. This is not only convenient for equipment management, but also increases the number of wearing parts, which will inevitably increase the cost of normal operation. At the same time, the decentralized layout further exacerbated the production environment.

The gas supply quality is poor and the fuel consumption is large. Piston-type air compressors have worn piston rings. Although there are scraping oil rings on the pistons, there are still a lot of oils dripping into the cylinders and discharged with the gas. This reduces the gas quality on the one hand. On the other hand, it also increases fuel consumption. The inevitable leakage of lubricants will also increase fuel consumption and pollute the environment. Screw air compressor has an efficient oil and gas separation system and filtration equipment, no wear parts, high gas supply quality and low fuel consumption. It is based on the above situation, the state authorities issued a document in 2000, requiring domestic companies to phase out the piston compressors with low operating costs and high reliability in the use of medium and low pressure air compressors, replacing them with highly efficient screw compressors. It has become a reality in developed countries.

To sum up the above, in order to reduce production costs, increase economic efficiency, facilitate equipment management, beautify the company's environment, improve company image, and eliminate existing piston air compressors with high-efficiency and high-reliability screw compressors and build an advanced technology. The economic pressure of an air compressor station is an inevitable trend for your company to grow stronger.