The automatic temperature control energy-saving volumetric heat exchanger makes full use of steam energy, high efficiency and energy saving, and is a new type of water heater. Ordinary water heaters generally need to be equipped with water-to-water heat exchangers to reduce the temperature of steam condensate for reuse. The energy-saving heat exchanger condensate outlet temperature is around 45 ℃, or directly back to the boiler room for repeated use. This reduces the equipment investment, saves the area of the heat exchanger machine room, and thus reduces the basic construction cost. Therefore, the energy-saving volumetric heat exchanger is very popular among the majority of design and user units.
Steel-lined copper heat exchangers are more economical than stainless steel heat exchangers and are technically guaranteed. It takes advantage of the strength of steel and the corrosion resistance of copper. It ensures that the heat exchanger can withstand a certain working pressure, and makes the water quality of the heat exchanger good. The thickness of the steel shell lining copper is generally 1.0mm. The steel-lined copper heat exchanger must prevent partial vacuum from forming in the tank, so the products are equipped with anti-vacuum valves when they leave the factory. This valve cannot be cancelled unless it is regularly inspected. The cause of the partial vacuum may be improper discharge, low heat level from the heat exchanger, or poor drainage system. Water hammer or sudden pressure drop is also the cause of negative pressure.