How to choose the brand of large centrifugal air compressor?

Release time：2026-10-19    Click：3

　　In petrochemical industry, air separation industry and steel industry, the air compressor station has never been a supporting role. When the gas consumption of a single station exceeds 20m3/min, the energy consumption bill of the traditional parallel connection scheme of screw air compressors will become ugly-at this time, it is time for large centrifugal air compressors to appear. So, how to choose the brand of large centrifugal air compressor? With the deepening of the "double carbon" goal and the upgrading of manufacturing industry, the energy consumption control, operation and maintenance cost and intelligent level of large centrifugal air compressor units have become the core considerations for the selection of large centrifugal air compressors.

　　How to choose the brand of large centrifugal air compressor？

　　First, the core advantages of large centrifugal air compressor

　　1. Working principle

　　Centrifugal air compressor belongs to speed compressor: gas is thrown out by high-speed rotating impeller to obtain kinetic energy, and then the kinetic energy is converted into pressure energy by diffuser. It is different from the volumetric path of the screw air compressor-the screw air compressor is forced to transport gas by cavity contraction, and the pressure is not limited by the flow.

　　In order to give consideration to pressure ratio and efficiency, large centrifugal air compressor units generally adopt multi-stage compression+inter-stage cooling, and each stage impeller runs independently at its own better speed through gear speed-increasing box, which is the mainstream "integral gear speed-increasing type" structure. Brands such as Tiling have been able to achieve five-axis and ten-stage compression.

　　2. Core technical features

　　The exhaust capacity is very large: the exhaust capacity of a single machine starts from 20m3/min, and the large centrifugal air compressor unit can reach hundreds of thousands of Nm3/h levels.

　　Oil-free design: the gas in the compression chamber does not contact with lubricating oil in the whole process, and the gas path is completely isolated from the oil path, which can stably output oil-free air. For the "zero tolerance" scenes such as wafers and sterile drugs, this is a hard advantage to save the whole degreasing post-treatment chain.

　　Less wearing parts and long service life: the rotor and stator are not in contact, and there is no friction and wear. Daily maintenance focuses on bearings, seals and filter elements, and the whole machine is designed to have a long service life.

　　Outstanding full-load energy efficiency: near the rated working condition, the specific power of centrifugal air compressor is significantly better than that of screw air compressor. When it is fully loaded for a long time and runs for more than 6,000 hours a year, the difference in electricity fee is enough to cover its higher initial investment.

　　Intelligent anti-surge is standard: through stepless adjustment of imported adjustable guide vane (IGV) and vent valve, the unit is firmly locked on the right side of surge line, and supports constant pressure control, group control and remote operation and maintenance.

　　Second, the application of large centrifugal air compressor

　　Air separation industry: supporting large-scale oxygen and nitrogen production devices to provide stable gas supply for coal chemical and metallurgical projects to ensure gas purity and productivity. This is a mature and mainstream application scenario of centrifugal air compressor.

　　Petrochemical industry: compressed natural gas, olefin, hydrogen, carbon dioxide and other process gases run through oil refining, ethylene production, coal chemical industry and other links, which is the key equipment to determine the quality of safety and safety products. The compression process of chemical medium can be oil-free.

　　Electric energy: thermal power and nuclear power are used for auxiliary gas supply, and also used for compressed air energy storage power stations.

New energy and new materials: Lithium battery, photovoltaic and polysilicon factories have extremely high requirements on the cleanliness of gas sources, and the centrifugal air compressor has no oil output for material purification, purging and air-tight inspection and measurement, so as to avoid oil pollution and ensure product yield.

　　Iron and steel metallurgy: provide high-pressure gas source for blast furnace ironmaking and converter steelmaking, and support blast furnace blast and pulverized coal injection.

　　Other industries: aeration in water plants, centralized gas supply, automobile manufacturing, aseptic treatment of food and medicine, etc. are also in use.

　　Third, Turbo-Tech: the preferred brand of large centrifugal air compressor

　　Turbo-Tech is a "little giant" enterprise and a high-tech enterprise, and its large-scale centrifugal air compressor and other products have a comprehensive pedigree, covering air separation, petrochemical, electronics, food and medicine, steel and other scenes.

　　Product technology

　　Wide-flow controllable vortex three-dimensional flow impeller: optimize blade profile based on three-dimensional modeling and CFD fluid simulation, reduce boundary layer separation and vortex loss, and expand energy-efficient working range; Impeller is made of titanium alloy and high-strength stainless steel, and is precision machined by five axes.

　　Oil-free: the gas path and oil path are separated as a whole, and all of them have passed the German TüV oil-free certification.

　　High-power gearbox and multi-shaft shafting: achieve a breakthrough of five shafts and ten stages, and the power of a single machine can exceed 60MW.

　　Dry gas sealing and intelligent control: provide a zero-leakage shaft seal scheme for toxic, harmful or flammable media such as hydrogen, chlorine and carbon dioxide; Self-developed anti-surge system cooperates with IGV to realize millisecond response.

　　Product matrix

　　Ti series centrifugal air compressor: the flow rate is 1200-24000Nm3/h, the pressure is 0.06-1.6MPa(G), the efficiency is 3%-6% higher than that of the previous generation, and it is suitable for small and medium flow oil-free scenes such as food, electronics, textile and biological fermentation.

　　Mn(H) series centrifugal compressor: the flow rate is 1200-600000Nm3/h, the pressure is 0.12-16.0MPa(G), the single machine power can reach 60MW, and it mainly focuses on large-scale air separation, petrochemical, compressed air energy storage and wind tunnel experiments.

　　Ra series process gas compressor: the flow rate is 1200–600,000 nm3/h, and the pressure is 0.25–40.0 MPa (g). It can handle corrosive, flammable and explosive media such as hydrogen, chlorine, vinyl chloride and carbon dioxide, and meets API standards. It has been applied in coal chemical industry and natural gas transportation projects in batches.

　　The above is the introduction of "how to choose the brand of large centrifugal air compressor". Choosing a large centrifugal air compressor is essentially a trade-off between flow, pressure, medium, cleanliness, load curve and full-cycle cost, not more beautiful than whose parameter table. If your working condition conforms to "large flow, full load year after year, and the gas source must be oil-free", there is almost no alternative for centrifugal air compressor; In terms of specific brands, domestic brands such as Turbo-Tech, which realize the autonomous control of the whole chain from the aerodynamic design of impeller to the manufacture of gearbox, and have been verified by hard projects such as G50, raw gas and large-scale air separation, deserve to be put on the short list.