Air-conditioning refrigerant pipe refers to the main re […]
Air-conditioning refrigerant pipe refers to the main refrigeration components such as heat exchangers, valves, compressors and other main refrigeration components in the air-conditioning system through which the refrigerant flows are usually made of copper pipes.
The air-conditioning system transports cold or heat to the end. There are several ways to divide it from the transported medium. One is direct air supply, the other is cold/hot water, and the other is direct refrigerant.
1. Take refrigerant
For systems that directly take the refrigerant, such as the R410 refrigerant tube, the refrigerant pipeline will directly enter the air-conditioned space to connect the outdoor host and the indoor unit.
2. Air supply and hot and cold water
For systems with direct air supply and cold and hot water delivery, refrigerant pipelines are generally concentrated near the host.
For the dual-supply system, the refrigerant pipeline is in the outdoor host, and the indoor and outdoor connections are the water pipes carrying the cooling effect.
If the refrigerant pipeline is too long, the expansion valve should generally adopt the external balance view mode to cope with the pressure drop from the inlet of the evaporator to the suction port of the compressor.
Why use copper pipes for air conditioners?
01. The connection between the indoor unit and the outdoor unit of the general split type air conditioner requires connecting materials for connection. Commonly used materials for connecting the indoor unit and outdoor unit of the air conditioner are copper pipes and aluminum pipes.
At present, air-conditioning copper pipes are commonly used as air-conditioning connecting materials. why? Because the refrigerant eventually absorbs heat in the evaporator, and then releases the heat in the condenser, the outside of the copper pipe of the air conditioner is connected to the heat sink, and the refrigerant (freon) passes through the connecting pipe.
02. Copper pipes have high pressure resistance, are not easy to corrode, and have a longer service life than aluminum pipes; the thermal conductivity of refrigeration copper pipes is much better than aluminum pipes, and the welding performance and mechanical strength are much better than aluminum. The price will also be more expensive than aluminum tubes.
Therefore, the quality of the copper tube used for this refrigerant directly affects the cooling effect of the air conditioner.