Answer: High-temperature, high-pressure refrigerant vapor enters the condenser shell from the upper part of the condenser, and conducts convection heat exchange with the cooling water. The refrigerant gas absorbs the cold and condenses into refrigerant liquid, which flows out from the outlet pipe at the lower part of the shell. The cooling water flows through the tube. In order to enhance the heat exchange effect, the condenser copper tube usually adopts low-fin tubes. The inlet and outlet of the cooling water are set on the end cover on the same side, with the inlet at the bottom and the outlet at the top. Water-dividing ribs are set on the end plates on both sides to force the cooling water to flow from bottom to top and back and forth (generally four-way round trip). The condenser shell bears a high refrigerant condensation pressure. Especially when the cooling water is insufficient, the condensation pressure will reach the highest possible pressure, so a fusible safety plug should be set on the water condenser.
The condenser can be cleaned with a compressed air spray gun. If it is severely blocked, it can be cleaned with a cleaning agent, but solvents that may corrode the copper tubes and fins must not be used.
