The double-heavy cold-water compressor is a screw compressor made up of two screws colliding with each other. Refrigerator compressors (i. E. Double screws) have a pair of condensed, opposite spiraled rotors. The working method of a two-snail cold-water mechanism cold compressor - relying on condensed rotors - has several of the same work volume, which is referred to as base volume, in order of the same work process over each cycle. It is formed by a pair of teeth in the rotor, the wall inside the machine and the end cover. A full picture of the compressor work is to be found in a study of the entire work cycle of one of the volumes. The operation of the cold compressor of the screw cold water mechanism begins with the inhaling process, and the gas is then compressed in the sealed base mass and then discharged from the vent. The formation between the penis, the cone and the body'v'' the size of a pair of teeth (matrix volume) in the font changes cyclically, while it moves along the rotor axis from the inhaled to the exhaust, inhaling the refrigerant gas and compressing it to a certain pressure。
Double screw cold water machine
Characteristics of a two-snail cooler:
1. Oil compression is required (a small amount of spray can also be used). In case of oil loss, there may be frictions between metal and metal, affecting operation and rotor life。
2. Large rotor diameter loads and axle thrusts, in particular very large axle thrusts, which need to be offset by volume and strength of bearings or balancing pistons, and which have an impact on their useful life。
Oil is not only used for cooling, sealing, lubrication and power transfer (25-60 per cent). Fuel pumps are generally operated on a continuous basis. The fuel is high and the system is complex。
4. The normal bearing life is 20,000 to 30,000 hours, which requires major repairs。
5. The main component is only one tenth of a piston compressor。
6, single-level compression is high. At low temperatures, a unique structure of economic instruments can be used to save energy, but costs have increased accordingly。
7. Compressors are slightly more efficient than single screws。
8, single head** large refrigeration volume is larger than single screw。
9. Insensitive to hydraulic shocks, the process can be wet。
In recent years, performance has improved considerably as teeth and other structures continue to improve. The chiller compressor parts of the screws are so tight that they are efficient and do not have vulnerable items such as uninhaled, exhaust valves. The screw cold compressor has now become an advanced chiller compressor, and in particular the screw cold compressor unit has been widely used in various industries。
