Condensate Water Preheater, Condenser, Single or Double Circuit Hot and Cold Alternation, Stainless Steel Material, Yichen Customized. For example, the shell-and-tube preheater operates as follows: Raw water enters the shell of the preheater through one port, flows inside the shell, and simultaneously passes through the air preheater in the piping, then enters the constant pressure vessel via the through-flow tube of the preheater, where it reaches a constant pressure before flowing into the boiler. Simultaneously, steam enters the other port of the shell from the boiler and passes through the air preheater between the shell and tubes, condenses into water, and returns to the boiler. Its advantages include: 1. Heat recovery to improve the efficiency of the boiler. 2. Preheating condensate water reduces the heat and moisture emissions from the boiler. 3. Reduces the energy consumption and operating costs of the boiler. In summary, the working principle of the condensate water preheater is to transfer heat from the steam to the condensate water through heat exchange, achieving the purpose of energy recovery and efficiency improvement. In actual use, different preheaters should be selected based on specific conditions to achieve energy-saving effects.