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What is the working principle of water ring compressor?
Time：
2021-08-25
The water ring compressor is a contact fluid machine that rises low-pressure gas to high-pressure gas, and is the heart of the cooling system. Inhale low-temperature and low-pressure refrigerant gas from the suction pipe, drive the piston to compress through motor operation, and discharge high-temperature and high-pressure refrigerant gas into the exhaust pipe to provide power for the refrigeration cycle.
The water ring compressor is a contact fluid machine that rises low-pressure gas to high-pressure gas, and is the heart of the cooling system. Inhale low-temperature and low-pressure refrigerant gas from the suction pipe, drive the piston to compress through motor operation, and discharge high-temperature and high-pressure refrigerant gas into the exhaust pipe to provide power for the refrigeration cycle.
Compression condensation (heating) expansion evaporation ((endothermic) cooling cycle. Compressors are divided into piston compressors, screw compressors, centrifugal compressors, linear compressors, etc. This article mainly introduces the working principle, classification, parts, specifications, working requirements, compressor production, general defects and environmental requirements, selection principles, installation conditions and development trends of water ring compressors.
What are the classifications of water ring compressors?
Water ring compressors can be divided into volumetric compressors and speed compressors according to their principles. Volumetric compressors are divided into reciprocating compressors and rotary compressors. Speed compressors are divided into axial flow compressors, centrifugal compressors and mixed flow compressors.
Today, household refrigerators and air conditioning compressors are all volumetric, which can be divided into reciprocating and rotary. Reciprocating compressors use pistons, cranks, connecting rod mechanisms or pistons, cranks, and sliding mechanisms, and mostly rotary rotor compressors. In commercial air conditioners, most of them are centrifugal, vortex, and screw.
According to the different scope of application, it can be divided into low back pressure type, medium back pressure type, and high back pressure type. Low back pressure type (evaporation temperature -35 ° C~ -15 ° C), generally used in home refrigerators, food freezers, etc. Medium back pressure type (evaporation temperature -20 ° C~ 0 ° C), generally used in cold drink cabinets, milk refrigerators, etc. High back pressure type (evaporation temperature -5 ° C~ 15 ° C), generally used in room air conditioners, dehumidifiers, heat pumps, etc.
What is the working principle of water ring compressor?
Mainly used for air compressors is to adjust the stop state of the air compressor, adjust the pressure of the air tank to make the air compressor stop resting, and maintain the machine. During commissioning in the air compressor factory, the specified pressure is adjusted according to customer requirements and the differential pressure is set. For example, the compressor starts to run and injects air into the air tank. When the pressure reaches 10 kg, the air compressor stops or unloads.
The motor directly drives the water ring compressor to make the crankshaft rotate and drive the connecting rod to make the piston reciprocate, causing the cylinder volume to change. Due to the pressure change inside the cylinder, the air flows into the cylinder through the intake valve through the air filter (muffler), and the cylinder volume decreases during the compression stroke. Therefore, the compressed air works through the exhaust valve and enters the gas tank through the exhaust pipe and one-way valve (check valve). When the exhaust pressure reaches the rated pressure of 0.7MPa, the pressure switch will automatically stop. When the gas tank pressure drops to 0.5 - 0.6MPa, the pressure switch will automatically connect.
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