The working principle of waste heat recovery heat exchanger can achieve the energy conservation and consumption reduction by heating the discharged smoke and steam with some temperature and pressure according to the condition of user’s equipment and then recovering their heat energy.

With higher-level development of our country’s economy, energy conservation, consumption reduction, safety and environmental protection have become the basic requirements for industrial development. Each industry puts more attention to the energy conservation and consumption reduction in order to lower the enterprise cost and enhance the enterprise competitiveness. In several industries, we have popularized and applied the preheater using the low-pressure (middle-pressure) air (nitrogen and so on) heat, regenerative preheater using the low-pressure and low-temperature steam of enterprise and smoke heater used in the chemical industry. As a result, they have been highly appraised by the users because of their more benefits.