Industrial waste water and heat recovery-Direct heat unit

Direct heating unit
The direct heat machine is a heat exchange unit, which is used for waste heat recovery and utilization of industrial waste water above 70℃, and can be widely used for waste heat recovery of wastewater in petrochemical, coal, electric power, steel, metallurgy, textile, paper and other industries to provide industrial and domestic hot water or heating for buildings. At present, it has been successfully used in many industrial waste heat heating projects such as steel mills and chemical plants.

Main characteristics of direct heating unit
* Due to the principle of vacuum phase change, a large number of inorganic salts and other easily crystallized substances dissolved in water, because there is no cold wall, completely eliminate the problem of crystallization scale on the wall of the inter-wall heat exchanger;
* The two units are made of epoxy glass steel tank, and all other parts in contact with sewage are made of glass steel or polytetrafluoroethylene material, without worrying about heat transfer efficiency, and the service life is not less than 15 years under the condition of slag washing water;
* The condenser side adopts special plate negative pressure vapor condenser, which has high heat transfer coefficient and small heat transfer temperature difference; It is a low-voltage operation equipment, safe and reliable, less moving parts, stable operation, long maintenance cycle;
* Equipped with advanced automatic system, can be one-click start, automatically record the operation of the equipment, save the user's management cost;
The operating cost is low, and the power cost is about 2 yuan /GJ