[Mechanical Equipment Technology Edition] Daily Question 201805011: Refrigeration Systems – Refrigeration Equipment (2)
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This post was last edited by YORK Industrial Refrigeration on 2018-5-23 at 15:59. This year’s 【Daily Question】 is divided into three categories: screw refrigeration compressors, refrigeration systems, and oil circuit systems, aiming to provide a comprehensive understanding of refrigeration technology. (If you encounter something you don’t know or can’t answer, please actively look up information; as you do so, your skills will improve!) ) All participants in the comments on this post will receive 1-3 wealth points; those who give complete answers will get 10-15 points, with the validity period being two days. ============================== Some time ago, I had already asked almost all the basic questions regarding screw-type refrigeration compressors. Now we will move on to daily questions related to refrigeration systems, focusing on refrigeration equipment and its parameters – learning how to understand the operation status of such equipment through these parameters! Refrigeration system — Refrigeration equipment (2): What is the role of the refrigeration compressor in a refrigeration system? The refrigeration screw compressor compresses the low-temperature, low-pressure gas entering at the suction side into high-temperature, high-pressure gas, serving as the power source for the refrigerant cycle. ============================== High-quality promotions: Mechanical equipment——Videos on the repair and adjustment of York compressors https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1806833 Mechanical equipment——Maintenance procedures for York screw compressors https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1806833 Mechanical equipment——Upgrading of York Quinton control centers https://bbs.hcbbs.com/thread-1804837-1-1.html Mechanical equipment——Major repairs of GEA Grasox screw compressors https://bbs.hcbbs.com/thread-1800467-1-1.html Mechanical equipment——Disassembly and maintenance of British HOWDEN screw compressors https://bbs.hcbbs.com/thread-1832529-1-1.html Mechanical equipment——Disassembly and maintenance of Japanese Maekawa MYCOM screw compressors https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=
The cooling principle of a conventional refrigerator is as follows: the role of the compressor is to compress steam with lower pressure into steam with higher pressure, thereby reducing the volume of the steam and increasing its pressure. The compressor draws in the low-pressure vapor of the working fluid coming from the evaporator, raises its pressure, and sends it to the condenser. There, it condenses into a liquid with higher pressure. After passing through a throttle valve, it becomes a liquid with lower pressure and is then sent back to the evaporator. In the evaporator, it absorbs heat and evaporates back into a vapor of lower pressure, which is then sent back to the inlet of the compressor, thus completing the refrigeration cycle.
The compressor is the heart of a refrigeration system; it compresses the refrigerant gas drawn in using a piston, and then discharges the high-temperature, high-pressure refrigerant gas through the exhaust pipe. This provides the power necessary for the refrigeration cycle, enabling the cycle of compression → condensation → expansion → evaporation (heat absorption)
The compressor is the driving force of the refrigeration cycle; it rotates continuously driven by an electric motor. In addition to promptly removing the vapor from the evaporator to maintain low temperature and pressure, it also increases the pressure and temperature of the refrigerant vapor through compression, thereby creating the conditions necessary for transferring the heat from the refrigerant vapor to the surrounding environment. The low-temperature, low-pressure refrigerant vapor is compressed to a high-temperature, high-pressure state, so that air or water at normal temperature can be used as a cooling medium to condense the refrigerant vapor.
The compressor is the driving force of the refrigeration cycle; it rotates continuously driven by an electric motor. In addition to promptly removing the vapor from the evaporator to maintain low temperature and pressure, it also increases the pressure and temperature of the refrigerant vapor through compression, thereby creating the conditions necessary for transferring the heat from the refrigerant vapor to the surrounding environment. The low-temperature, low-pressure refrigerant vapor is compressed to a high-temperature, high-pressure state, so that air or water at normal temperature can be used as a cooling medium to condense the refrigerant vapor.
The low-pressure refrigerant gas returning from the evaporator is drawn in and compressed, resulting in high-temperature, high-pressure refrigerant vapor.
It serves to transport refrigerant vapor, while ensuring that the evaporator operates at low pressure and the condenser operates at high pressure; it is a device used for input
The compressor is the heart of a refrigeration system. It draws in low-temperature, low-pressure refrigerant gas through the suction pipe, compresses it using a piston driven by an electric motor, and then discharges the high-temperature, high-pressure refrigerant gas through the exhaust pipe. This provides the power necessary for the refrigeration cycle, enabling the cycle of compression → condensation → expansion → evaporation (heat absorption). A compressor generally consists of a housing, an electric motor, a cylinder block, pistons, control equipment (starters and thermal protectors), and a cooling system. There are basically two types of starters, namely weight-type and PTC-type. The latter of them is more advanced. There are two cooling methods: oil cooling and natural cooling.
The compressor is the heart of a refrigeration system. It draws in low-temperature, low-pressure refrigerant gas through the suction pipe, compresses it using a piston driven by an electric motor, and then discharges the high-temperature, high-pressure refrigerant gas through the exhaust pipe. This provides the power necessary for the refrigeration cycle, enabling the cycle of compression → condensation → expansion → evaporation (heat absorption). A compressor generally consists of a housing, an electric motor, a cylinder block, pistons, control equipment (starters and thermal protectors), and a cooling system. There are basically two types of starters, namely weight-type and PTC-type. The latter of them is more advanced. There are two cooling methods: oil cooling and natural cooling.
The compressor is the heart of a refrigeration system. It draws in low-temperature, low-pressure refrigerant gas through the suction pipe, compresses it using a piston driven by an electric motor, and then discharges the high-temperature, high-pressure refrigerant gas through the exhaust pipe. This provides the power necessary for the refrigeration cycle, enabling the cycle of compression → condensation → expansion → evaporation (heat absorption).