Low-cost multiple-circulation heat exchange industry water zero-discharge treatment system

The invention provides a low-cost multiple-circulation heat exchange industry water zero-discharge treatment system. According to the low-cost multiple-circulation heat exchange industry water zero-discharge treatment system, a heat source of a technical heat exchanger is fully utilized to carry out evaporative concentration on industry water by the way in the multiple-circulation heat exchange process, and finally, salts in the industry water are separated by using a descaling system, a filter system and a crystalline salt collecting system, thereby implementing the overall water equilibrium and ionic equilibrium of the factory, and achieving the goal of zero discharge at low cost. 本发明提供了种低成本多次循环换热工业水零排放处理系统。该低成本多次循环换热工业水零排放处理系统是通过充分利用工艺换热器的热源在多次循环换热过程中顺便对工业水进行蒸发浓缩，最后通过除垢系统、过滤系统以及结晶盐收集系统完成工业水中盐的分离，从而实现工厂整体水平衡和离子平衡、低成本实现零排放目标。