Discussion on service conditions of centrifugal compressor

Release time：2025-03-17    Click：43

With the acceleration of Industry 4.0, centrifugal compressor, as the core power equipment, is widely used in many fields such as petroleum, chemical industry, metallurgy, natural gas and so on.In order to ensure the stable and efficient operation of the centrifugal compressor, prolong the service life of the equipment and reduce the failure rate, it is very important to correctly master the service conditions of the centrifugal compressor.

First, the working environment requirements

Generally, the ambient temperature should be controlled within a specific range, and the adaptation range of different types of compressors will be different, but most of them are suitable for working between 0℃ and 45℃.Too high or too low temperature may affect the viscosity and other characteristics of lubricating oil, and then interfere with the normal lubrication and operation of compressor.

The humidity of the environment can not be ignored. Excessive humidity can easily lead to electrical components being affected with damp, causing short circuit and other faults, and may accelerate the corrosion of metal components. Generally, it is appropriate to keep the relative humidity at 30% to 90%, and avoid the environment where there are a lot of corrosive gases or dust, otherwise these harmful substances will corrode the compressor parts and cause damage.

Second, the process parameter requirements

Rotational speed is one of the core parameters, which must be kept within the rated rotational speed range. Excessive rotational speed may exceed the designed bearing capacity of the equipment and cause mechanical failure. If it is too low, the expected compression effect and flow output cannot be achieved.

The exhaust pressure also needs to be accurately controlled, and a reasonable exhaust pressure is set according to the actual production process requirements, and it is monitored and adjusted in real time through the pressure regulating system to ensure that it is stable near the set value.

In addition, flow control is also indispensable. Adjust the flow reasonably according to the gas consumption of the system, so as to avoid the adverse impact of too large or too small flow on compressor operation and the whole production process.

Third, the application conditions of special scenes

Chemical industry and energy industry: when dealing with flammable and corrosive gases, corrosion-resistant alloy impeller and dry gas sealing technology should be adopted, and gas leakage monitoring devices should be installed at the same time.

Refrigeration and air separation: when used in refrigeration system, the refrigerant flow should be kept stable to avoid surge caused by low load operation; The air separation plant needs to control the cleanliness of inlet air to prevent dust from blocking the flow passage.

Electric Power and Metallurgical Industry: Pre-cooler should be installed for high-temperature flue gas compression to reduce the gas temperature below 40℃ and protect the impeller and bearing.

IV. Maintenance and maintenance conditions

Good maintenance is an important guarantee for the centrifugal compressor to maintain a good running state. The formulation of regular maintenance plan needs to comprehensively consider factors such as compressor running time and working intensity. In the process of overhaul, the key components such as impeller, bearing, seal, etc. should be thoroughly inspected, cleaned and replaced, so as to ensure that all parts of the equipment are always in good working condition, and potential failure hazards should be found and eliminated in time.

Only by comprehensively and meticulously controlling every detail of the conditions can centrifugal compressors exert their performance in practical application, provide stable and reliable gas power support for industrial production and promote the efficient development of related industries. If you want to know more, please consult the sales of Turbo-Tech.