With economic development and serious environmental pollution, the country's requirements for environmental protection are becoming more and more stringent. Heat pumps will gradually replace boilers in the leisure and entertainment industries, such as sauna pools, hot spring pools, bathing pools, and constant temperature swimming pools in the heating.Chloride ions and free carbon ions in corrosive water are corrosive, and the presence of dissolved oxygen ions greatly enhances the corrosion and destruction of metal pipelines.Some water sources of plate heat exchangers have high salinity and are also very corrosive to metals. If they enter the system directly, their corrosive effect will greatly reduce the service life of the unit.If the degree of salinity is reduced by water treatment, the cost will be very high.Usually, a plate heat exchanger is installed to exchange heat in the middle to isolate the water source water from the unit system, so that the unit system contacts the source water as little as possible and reduces its corrosiveness.
For corrosive water sources in the heat pump system, it is necessary to add corrosive stainless steel heat exchangers or titanium plate heat exchangers to the system. Otherwise, if the heat pump system is scaled and corroded, the cleaning and maintenance of the heat pump system will be greatly enhanced.When the salinity of the source water is 150-500mg/L, a stainless steel plate heat exchanger can be installed. When the salinity of the source water is greater than 500mg/L, a corrosion-resistant titanium alloy plate heat exchanger should be used. The plate heat exchanger has a small footprint, small size, high heat exchange efficiency, simple maintenance and low cost.