During the operation of natural gas pipelines, it is inevitable that some foreign matter or dirt will appear in them. Although there are pipe cleaners in the pipelines, sometimes the pipe cleaners may be blocked, which will cause the transportation efficiency of natural gas in the pipeline to decrease or even stagnate. At this time, the use of natural gas compressors to provide pressure can quickly increase the pressure and forcibly clear the blockage problem.
During the operation of natural gas pipelines, it is inevitable that some foreign matter or dirt will appear in them. Although there are pipe cleaners in the pipelines, sometimes the pipe cleaners may be blocked, which will cause the transportation efficiency of natural gas in the pipeline to decrease or even stagnate. At this time, the use of natural gas compressors to provide pressure can quickly increase the pressure and forcibly clear the blockage problem.
If there is a leakage problem in the natural gas pipeline, it will not only waste but also pollute the environment. Then the natural gas compressor will extract and compress it and transmit it to the next pipeline. On the one hand, it reduces losses and on the other hand, it reduces harm.
Because it is inevitable that some soil and sand will be left in the pipeline during construction. Leaving it in for a long time will reduce the transportation efficiency and increase the wear of the pipeline. If it is blocked, it is easier to damage the pipeline. If it flows into the home, it is more likely to cause greater harm. Therefore, the natural gas compressor can be used for purging to effectively clean up the foreign matter and mud and sand inside, effectively reducing the burden of long-term operation of the pipeline.
The working principle of the natural gas compressor is mainly divided into the following two ways:
The working principle of the piston natural gas compressor
When the crankshaft of the piston compressor rotates, the piston reciprocates through the transmission of the connecting rod, and the working volume composed of the inner wall of the cylinder, the cylinder head and the top surface of the piston will change periodically. When the piston of the piston compressor starts to move from the cylinder head, the working volume in the cylinder gradually increases. At this time, the gas pushes the intake valve along the intake pipe and enters the cylinder until the working volume reaches the maximum, and the intake valve is closed; when the piston of the piston compressor moves in the opposite direction, the working volume in the cylinder decreases, the gas pressure increases, and when the pressure in the cylinder reaches and is slightly higher than the exhaust pressure, the exhaust valve opens, and the gas is discharged from the cylinder until the piston moves to the limit position, and the exhaust valve is closed. When the piston of the piston compressor moves in the opposite direction again, the above process repeats. In short, the crankshaft of the piston compressor rotates one circle, the piston reciprocates once, and the process of intake, compression, and exhaust is realized in the cylinder successively, that is, a working cycle is completed.
Working principle of centrifugal natural gas compressor
The structure and working principle of the centrifugal compressor are very similar to those of the centrifugal blower. But its working principle is fundamentally different from that of the piston compressor. It does not increase the pressure of the gas by reducing the cylinder volume, but relies on the change of kinetic energy to increase the pressure of the gas. The centrifugal compressor has an impeller with blades. When the impeller rotates, the blades drive the gas to move or give the gas kinetic energy, and then convert part of the kinetic energy into pressure energy to increase the pressure of the gas.
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