Development trend of centrifugal air compressor
release date：2024-05-30
Centrifugal air compressors play an extremely important role in the development of the chemical industry.
Centrifugal air compressors play an extremely important role in the development of the chemical industry.
Centrifugal air compressors are used to increase the pressure level of gaseous media or to transport gaseous media from one device to another. The driver of a centrifugal air compressor is generally a blade motor or motor, which converts base steam energy or electrical energy into the pressure potential energy of the gaseous medium. In this process, the volume of the gaseous medium will be reduced or the state will change, and the pressure will usually increase.
When the centrifugal air compressor is working, the suction surface of the blade will absorb the gaseous medium, work will be done through the pressure surface of the blade, and the pressure of the gaseous medium will be expanded in the expander composed of the partition, so that the pressure of the gaseous medium is increased.
At first, centrifugal air compressors were not favored by people in the industry because they were only suitable for working conditions with partial pressure and small flow. However, due to the important role of high-pressure air compressors in the chemical industry and the continuous development of the chemical industry in recent years, they have occupied an important position in the chemical field. In the chemical industry, high-pressure air compressors are the most important equipment in the chemical process.
With the improvement of centrifugal compression design capabilities, its working efficiency has been continuously improved. Due to the application of various advanced seals and centrifugal air compressor enclosure diffuser structures, centrifugal air compressors have been developed in the direction of large working volume and large working flow, thus gradually opening up the scope of application of centrifugal air compressors.
Before the emergence of centrifugal air compressors, reciprocating air compressors dominated the chemical industry. Reciprocating air compressors have many disadvantages, such as small single-cylinder capacity, huge volume, large working noise, easy damage and low working efficiency, which makes it difficult to promote and apply them on a large scale in the chemical industry.
Until 1900, a French factory called "Lato" first designed and manufactured the world's first centrifugal air compressor, which was used for blast furnace blasting. Therefore, the industry now also refers to centrifugal air compressors as centrifugal blowers. In 1906, the Lt0 air compressor designed and manufactured by the Swiss triggered a wave of widespread use of centrifugal air compressors worldwide.
Since the 1940s, with the development needs of military aviation aircraft, axial flow air compressors have emerged. Axial flow air compressors have a thermal efficiency of up to 84~92% and are widely used in the manufacture of aviation gas turbines
At the same time, the energy industry also saw the advantages of oil-flow air compressors, and they have also been fully developed in the fields of oil production, energy and pharmaceuticals. Due to the rapid development of axial-flow air compressors, centrifugal air compressors have been developed. Until 1965, the demand for ultra-small gas turbines in the aviation industry and the improvement of the manufacturing process and aerodynamic design capabilities of centrifugal air compressors have led to their rapid development.
Centrifugal air compressors have the advantages of high speed, strong continuity, long service life, and uninterrupted continuous operation. With the innovation of basic design and manufacturing key unit technology, centrifugal air compressors have been widely used.
The petrochemical industry developed rapidly in the last century. In the late 1950s, Demag, founded in Germany, designed and manufactured the famous gear-assembled air compressor. The assembled air compressor is a gear-driven multi-service centrifugal air compressor. Its multi-stage pneumatic design greatly improves the exhaust pressure and mass flow of the air compressor, making it widely used in the fertilizer industry. Until the late 1970s, various centrifugal air compressor manufacturers launched their own VK series air compressors to meet a wide range of market needs.
Among them, there are some famous models Centrifugal air compressor: Example: In 1960, Heliot of the United States designed and manufactured the PAP series centrifugal air compressor, which is a three-stage compression centrifugal air compressor with a lower limit of 27.88m3/min.
15 years later, the manufacturer designed and manufactured the PAP+ series high-pressure centrifugal air compressor, which further increased the exhaust pressure and steam volume. In 1963, a company called Landy of the United States manufactured the Dentek series of high-cost gas compressors. The working state of this series of compressors was set, and the working efficiency of the Dentek series of centrifugal air compressors was improved. It was well received in the chemical industry until 1977 when the manufacturer produced the Dentek second-generation series of centrifugal air compressors. This generation of products increased the speed by about 12% compared with the first generation of products, greatly increasing the exhaust pressure and flow.
Source: Internet
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