Explanation and introduction of the working principle of screw compressor

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Do you know what a screw compressor is? How does it work? What fields is it mainly used in? Next, Gong Lenghui will explain the screw compressor one by one! 1. What is a screw compressor? The screw compressor is composed of a pair of parallel, mutually meshing female and male rotors (screws). It is a widely used type of rotary compressor. Screw compressors are divided into single screw and twin screw compressors. Screw compressors usually refer to twin screw compressors. The screw compressor was born at the Royal Institute of Technology in Sweden in 1934. The technology was laid down by A. Lysholm. The first screw chiller was jointly developed by Frick and SRM. It has the characteristics of precise microcomputer control, the ability to adjust the variable internal volume ratio, and the use of rolling bearings instead of bearings. Subsequent industrial applications have achieved rapid development. At present, the main categories of screw compressors include oil-free screw compressors and oil screw compressors. Screw compressors can be divided into screw air compressors and industrial screw compressors due to different uses. Below, Gong Lenghui will explain the working principle and application of screw compressors. 2. Working Principle of Screw Compressor Gong Lenghui takes the industrial screw compressor as an example to explain its working principle. The screw compressor is a fluid machine that promotes low-pressure gas to high-pressure gas. It is the heart of the refrigeration system. It is responsible for the circulation of coolant in the entire refrigeration system. During the refrigeration process, the compressor obtains gaseous coolant from the evaporator and delivers it to the condenser, which liquefies the gaseous coolant and removes heat from the system. The working principle is as follows: The rotor groove is filled with gas when passing through the suction port. When the rotor rotates, the rotor groove is closed by the casing wall to form a compression chamber. When the rotor groove is closed, lubricating oil is sprayed into the compression chamber to perform sealing, cooling and lubrication functions. When the rotor rotates to compress the lubricant and refrigerant, the evaporator obtains gaseous cooling liquid. The cooling liquid enters the condenser and is liquefied to take away heat, thereby realizing a refrigeration cycle of compression → condensation (heat release) → expansion → evaporation (heat absorption). 3. Application of industrial screw compressors Industrial screw compressors are widely used in petrochemical industry such as polymer generation, water injection or ethylbenzene, oil refining, chemical industry such as carbon monoxide gas compression, polysilicon tail gas compression, energy such as coke oven gas compression, steel plant furnace gas compression and other industrial fields, especially It is a York screw compressor. It is highly recognized by industrial refrigeration customers for its advantages of high speed, light weight, small footprint, low noise, good power balance performance, simple structure, high durability of screw and other main components, high efficiency, variable content volume ratio technology, and stepless energy slide valve adjustment. Shandong Gonglenghui Network Information Technology Co., Ltd. is a company that specializes in providing MRO services for industrial refrigeration equipment. Our company has more than 10 years of experience in debugging, maintenance, and overhaul of industrial refrigeration equipment, and has the ability to repair, overhaul, and debug. Its e-commerce platform "Gonglenghui" uses a B2B + O2O model to provide customers with lubricants and filters for daily maintenance, sensors, valves, controllers, electrical components, heat exchangers, compressors, control centers for maintenance, and bearings, seals, shaft seals, rotors, slide valves, and flat surfaces for overhaul. We weigh pistons, impellers and other parts, and provide customers with multi-faceted remote and on-site technical services. We take "creating more value for customers with efficient supply chains and high-quality services in the field of industrial refrigeration" as our mission, and our eternal goal of "making customers feel assured and satisfied, and creating value for customers". Currently, our company mainly serves brands: For unit maintenance work at York, GEA (Grasso), Wuleng, Daleng, Yanlian, Carrier, Trane, McQuay, etc., we have highly skilled engineers who can complete maintenance work with high efficiency and high quality in terms of unit maintenance, system adjustment, and electronic control, and create new achievements with a sincere attitude. If necessary, search Gong Lenghui on Baidu, www.irmro.cn .