Water Softener Equipment

The water softening equipment, centered on sodium ion exchange technology, operates through three main steps: "normal water softening production → resin regeneration and restoration → rinsing and resetting cycle," enabling a stable output of qualified soft water 24 hours a day. The entire process is precisely controlled by an automatic control valve, requiring no manual supervision.

• Step 1: Normal Water Production – Hard Water Softening (Core Operating Stage)
  Raw water inlet: Hard water (tap water/well water/industrial raw water) containing high concentrations of calcium and magnesium ions enters the resin tank through pipelines and the control valve, flowing uniformly from top to bottom through the sodium-type cation exchange resin layer.
  Ion exchange: Sodium ions (Na⁺) on the resin surface undergo a displacement reaction with calcium (Ca²⁺) and magnesium (Mg²⁺) ions in the water. The hardness ions are adsorbed and retained by the resin, while sodium ions are released into the water. The hard water is thus converted into low-hardness soft water, which is directly supplied to boilers, circulating water systems, domestic water, and other applications.
  Saturation trigger: When the resin becomes saturated with adsorbed calcium and magnesium ions, its softening capacity decreases. The equipment automatically initiates the regeneration process and moves to the next stage.
• Step 2: Resin Regeneration – Restoring Exchange Capacity (Key Stage of the Cycle)
  Backwash loosening: The control valve reverses the water flow direction. Raw water flushes the resin layer from bottom to top, loosening compacted resin and flushing away trapped sediment and impurities to prepare for regeneration.
  Brine regeneration: Saturated brine (prepared by dissolving industrial softening salt in water) from the brine tank is drawn into the resin tank. The high concentration of sodium ions displaces the calcium and magnesium ions adsorbed on the resin. The resin is restored to its sodium form, regaining its softening capacity.
  Slow rinse displacement: The resin layer is further rinsed with low-flow clean water to thoroughly displace any remaining hardness ions. This makes full use of the regeneration fluid, reduces salt consumption, and ensures effective regeneration.
  Brine tank refill: After regeneration is complete, clean water is automatically added to the brine tank to dissolve solid salt and re-prepare saturated brine for the next regeneration cycle.
• Step 3: Rinse and Reset – Resuming Water Production (Final Stage of the Cycle)
  Positive rinse purification: The water flow direction is restored to normal production mode (top to bottom). The resin layer is rinsed at the rated flow rate to thoroughly remove any residual regeneration waste liquid (containing salt and displaced hardness ions) from the tank, preventing any impact on subsequent effluent water quality.
  Water quality: Rinsing continues until the effluent is clear and tasteless, with hardness measured at ≤0.03 mmol/L, meeting the required standard.
  Cycle reset: After rinsing is complete, the equipment automatically switches back to the "normal water production" stage, starting a new softening cycle and continuously supplying qualified soft water stably.

Typical Applications