What's the three pipe of the refrigerator compressor for? Which one is cooling and which is refrigeration?
Three in the pipeline has a fixed (high pressure exhaust pipe connected with the condenser pipe) the rest is low, two low pressure pipeline, a gas pipeline is 21, the root is maintenance when used, can through the pipeline external pressure, valve repair, evacuation, and refrigerant. Refrigerator repaired after the pipeline is sealed with sealing clamp, and welding, the formation of the blind pipe.
Respectively, the refrigerator compressor back air pipe, the exhaust pipe, fluorine tube (process tube), the exhaust pipe is cooling, and fluorine tube is refrigeration:1, small diameter (relatively fine) is the trachea, the diameter of large (relatively thick) is the trachea, fluoride tube (also known as process tube);2, the trachea is usually marked, "SUCTION" arrow pointing to the trachea;3, efficient compressor, air return pipe and fluorine pipe can not be confused, and the reverse will affect the work, if the inefficient R134a compressor (COP for 1 up and down) less affected.The above three compressor pipe, a connecting pipe is a relatively thin high pressure pipe (exhaust pipe), refrigerant through the compressor and the discharge temperature is relatively high; a connection diameter is about 8mm copper pipe for low pressure pipe (tube), refrigerant pressure change after flowing into the compressor, the relative the temperature is low, and about the same ambient temperature (refrigerant return pipe partial much hangs a cream); a welding pipe by welding or ultrasonic welding sealing plug, compressed pipe, pipe and gas pipe to process the same size. In addition, the compressor nameplate is clearly marked, the pipe for the trachea, you can observe. The smallest of the pipes is the high pressure pipe. Welding must pay attention to the process tube and return pipe can not be reversed, will affect the efficiency of the compressor.
1, the general refrigerator compressor has three pipe ports;2, the exhaust port, the compressed refrigerant discharged into the condenser, and then heat, the work of this tube temperature is relatively high;3, return air port, the condenser will absorb the heat of the refrigerant back to the compressor, recycling, the work of this tube cooler;4, the craft mouth, this is a blind tube. Refrigerant used in the production or maintenance of refrigerant, after welding ends are closed.
High pressure heat, low pressure cooling, process tube dead head
