Gas compression problem

During the compression of a gas, work is done on the gas, causing its temperature to rise and its volume to increase. Compared to multiple segments, using just one segment increases its power consumption. At the same time, too high a temperature can also affect the sealing performance and mechanical strength of the unit.

Compression from low pressure to high pressure is referred to as single-stage compression; the degree of compression is relatively high, and it is difficult for the gas to release heat after being pressurized. Additionally, the efficiency of a single stage is low, and the cost of the equipment is high. These are basic concepts related to compressors – find some materials on the topic to read

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During the compression of gas, its compression ratio must be taken into full consideration; as the gas volume decreases during compression, the pressure rises. Heat is generated during this process. Otherwise, the compression efficiency is low, the size of the equipment becomes large, and the compression work required is high. This results in high power demands for the equipment as well as high starting powers for the operating mechanisms, which is unfavorable from the points of view of power distribution, equipment installation, and investment. Therefore, multi-stage compression, inter-stage cooling, and rational investment are necessary.

Gas is compressed to very high pressures using primary compression; as a result, the compression ratio is extremely high. The temperature of the compressed gas rises significantly, which leads to two problems: 1) A large amount of heat is generated, and it cannot be removed in time, causing the compression process to deviate from an isothermal process and approach an adiabatic process, thereby increasing energy consumption; 2) The excessively high gas temperature causes the lubricating oil to lose its lubricating properties, damaging the mechanical components. 3. The pressure of the gas after primary compression is very high; the high-pressure gas remaining in the clearance during the compression process occupies a large volume of the cylinder during suction and expansion, which reduces the compressor’s capacity for production. 4. As the compression ratio increases, the pressure difference between the inside and outside also increases, forcing the components of the compressor such as the piston, crankshaft, and connecting rods to be larger in size in order to handle the resulting loads, which in turn increases the cost of the compressor. Difficult to manufacture the components