Waste heat increasing type integrated heat exchanger working principle

　　The integrated heat exchanger of waste heat and temperature increase type adopts the integrated technology of gradient heat exchange and heat pump. Heat pump technology is a kind of energy utilization way to recover medium and high-grade waste heat efficiently by consuming a small amount of electric energy, and this technology can extract more than 75% of waste heat energy in process wastewater. In addition, the cold volume discharged by the unit can also be used for cooling the production workshop and processes that require cooling, and to meet the process requirements that the temperature of the wastewater mixed into the wastewater treatment plant from multiple processes is not higher than 38℃. The wastewater pump sends the treated wastewater to the front and rear effect heat recovery heat exchanger to transfer most of the heat to the new water, and the cooled down wastewater then passes through the intermediate medium to release the heat to the heat pump for the second time to cool down, and the final temperature of the discharged water can be lowered to 20-25℃. At the same time, the released heat is absorbed by the refrigerant, the refrigerant through the heat pump unit to do work to the heat through the intermediate medium to the new water, the new water secondary warming final temperature can reach 60-75 ℃. The unit has a cooling function, through the function key switch can realize the cold output, when needed, can be directly accessed to the cooling system heat exchange, to the need to cool the process to achieve cooling or improve the working environment of the workshop, at this time, the wastewater discharge temperature will be increased, but the hot water production is not affected.