The difference between spiral plate condenser and tube condenser
The spiral plate condenser is a part of the refrigeration system, which is a kind of heat exchanger, which can convert gas or vapor into liquid, and transfer the heat in the tube to the air near the tube in a very fast manner. The working process is an exothermic process, so the condenser temperature is higher.
The difference between spiral plate condenser and tube condenser
1. The heat exchange tubes are different (condensing tube, evaporating tube).
2. The working temperature is different (35℃, generally lower than 5℃).
3. Different forms of heat exchange (bead-like condensation, nucleate boiling).
4. The working pressure is different (high pressure above 10bar, low pressure below 3bar).
5. The internal structure is different (cooling water inside the pipe, steam outside the pipe, chilled water inside the pipe, refrigerant outside the pipe, or refrigerant inside the pipe outside the pipe).
The spiral plate condenser has a compact structure and provides a large heat transfer surface per unit volume. For example, the heat transfer surface of a spiral plate heat exchanger with a diameter of ￠1500mm and a height of 1200mm can reach 130m2. The fluid in the spiral plate allows a high flow rate, and the fluid flows along The flow in the spiral direction, the stagnant layer is thin, so the heat transfer coefficient is large, and the heat transfer efficiency is high. In addition, due to the high flow rate, the dirt is not easy to stay.
Production practice has proved that the spiral plate condenser is not easy to be blocked compared with the general tubular heat exchanger, especially the suspended particle impurities such as sediment and small shells are not easy to deposit in the spiral channel, and the reasons are analyzed; one is because of it It is the deposition of single-channel impurities in the channel that once the turnover flow is formed, it will be increased to wash it away.Second, because there are no dead corners in the spiral channel, the impurities are easily washed out.
