![]({{media url="wysiwyg/Working_principle_of_reciprocating_piston_compressor.jpg"}})
When the piston reaches the highest position, the rotation of the connecting rod on the crankshaft F drives the piston down. At this time, some refrigerant vapor remains in the clearance volume of the cylinder. These vapors begin to expand, and as the piston moves down, the The pressure and temperature drop accordingly, and both the suction valve and the exhaust valve are closed. This process is called the "expansion process". When the pressure in the cylinder drops to equal the suction pressure, the expansion process ends.
As the piston continues to move downward, the pressure in the cylinder gradually decreases. When the pressure in the cylinder is less than the pressure in the return pipe (suction pipe), the suction valve opens again, and the refrigerant gas is drawn into the cylinder to start the second Cycles. It can be seen that the piston reciprocates once in the cylinder, that is, the crankshaft rotates once, and then the suction, compression, exhaust, and expansion processes will be performed in sequence. From beginning to end, the low-pressure gas in the evaporator is sucked through the return air pipe, and the compressed high-temperature and high-pressure refrigerant vapor is discharged into the condenser through the exhaust pipe, thereby forcing the refrigerant to circulate in the system to achieve the effect of refrigeration.
Reciprocating piston compressor characteristics
1. The pressure range is wide, applicable from low pressure to high pressure;
2. High thermal efficiency;
3. Strong adaptability, the displacement can be adjusted within a larger range.
4. The requirements for the metal materials of the compressor are not harsh.Working principle of reciprocating piston compressor_Characteristics of reciprocating piston compressor
When the piston reaches the highest position, the rotation of the connecting rod on the crankshaft F drives the piston down. At this time, some refrigerant vapor remains in the clearance volume of the cylinder. These vapors begin to expand, and as the piston moves down, the The pressure and temperature drop accordingly, and both the suction valve and the exhaust valve are closed. This process is called the "expansion process". When the pressure in the cylinder drops to equal the suction pressure, the expansion process ends.
As the piston continues to move downward, the pressure in the cylinder gradually decreases. When the pressure in the cylinder is less than the pressure in the return pipe (suction pipe), the suction valve opens again, and the refrigerant gas is drawn into the cylinder to start the second Cycles. It can be seen that the piston reciprocates once in the cylinder, that is, the crankshaft rotates once, and then the suction, compression, exhaust, and expansion processes will be performed in sequence. From beginning to end, the low-pressure gas in the evaporator is sucked through the return air pipe, and the compressed high-temperature and high-pressure refrigerant vapor is discharged into the condenser through the exhaust pipe, thereby forcing the refrigerant to circulate in the system to achieve the effect of refrigeration.
Reciprocating piston compressor characteristics
1. The pressure range is wide, applicable from low pressure to high pressure;
2. High thermal efficiency;
3. Strong adaptability, the displacement can be adjusted within a larger range.
4. The requirements for the metal materials of the compressor are not harsh.Subscribe to relevant news content?
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