China Power Plant: No Hard Scale, Chemicals Eliminated

Home 9 Case Studies and Results 9 China Power Plant: No Hard Scale, Chemicals Eliminated
Key results
0 Chemical dosing
1 kPa Vacuum pressure increase
1.5°C transit temperature drop

Case Study from Hydropath Asia

The Challenge

  • Heavy reliance on anti-scaling and biocide chemicals to control hard scale
  • Seasonal river water quality and high turbidity in the rainy season
  • Chemical dosing contaminated discharge water, preventing reuse on site
  • Steam condensation efficiency needed improvement

The Solution

Two HydroFLOW® Multihead 72″ units were fitted to the 1,800mm pipes feeding the steam condensers in November 2016, with no shutdown required. The signal disrupts the conditions that bond scale to surfaces, so existing limescale loosens and washes through while new hard scale doesn’t form.

Key Outcomes

R

Chemical dosing stopped 1 week after install

R

Condenser vacuum pressure rose by 1 kPa

R

Transit temperature dropped from 5–6°C to 4–5°C

R

No hard scale found at 3-month inspection

Independent Verification

All results in this study were measured and verified by third-party facilities managers and technical staff.

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