
XHY-EQC005 Scale Inhibitor for Boilers
Principle of Scale Prevention
The XHY-EQC005 boiler scale inhibitor is a blend of alkaline substances and organic compounds. The alkaline components in the inhibitor cause calcium and magnesium salts in the boiler water to form sludge, which is then removed through blowdown. This process eliminates the calcium and magnesium ions, preventing them from forming hard scale. The organic compounds in the inhibitor enhance the fluidity of the sludge, making it easier to discharge, and also form a protective layer on the metal surface to prevent scale buildup. This combination of chemical and physical actions prevents scale formation.
Usage
XHY-EQC005 boiler scale inhibitor should be dosed according to the hardness of the feedwater. Generally, the following dosage requirements should be followed:
1. For water hardness ≤ 2 milligrams equivalent per liter, use 40 grams of scale inhibitor per ton of water.
2. For every 2 milliequivalents per liter increase in water hardness, the dosage of the chemical should be increased by 35 grams per ton.
3. In case of uncertainty regarding the water hardness, add a bit more according to the aforementioned principles.
Usage Instructions
The XHY-EQC005 boiler scale inhibitor offers two dosing methods: one for boilers with a water tank or reservoir but no economizer, where the chemical can be directly added to the tank or reservoir and then delivered to the boiler with the water supply. The other method involves using a dosing funnel to pour the chemical directly into the boiler. Before dosing, the chemical should be diluted with 80℃ hot water and filtered. You can opt for intermittent dosing, dosing once per shift, or a single, full dose.
After adding the medication, pay attention to controlling the boiler water pH, keeping it no more than 10-20. Also, regularly drain the water, maintaining a drainage rate of 5%-10% typically. Drain at least once per shift, with each drainage lasting between 30-60 seconds.
If there is no change in water level after effluent, check if the fallen old scale has blocked the pipeline. If the pipeline is blocked, take timely measures to unblock it.
Important Notes
1. In-oven processing is simple and easy to master, but operators must be responsible and thorough, regularly conducting inspections and analyses to achieve the desired results.
2. Prior to water treatment inside the furnace, it is advisable to remove scale first to prevent large amounts of old scale from detaching and blocking the piping. Flush once after extinguishing the fire and shutting down the furnace. Also, pay attention to changes in water level.
3. Regular Inspections: Conduct an inspection after one month of adding chemicals, then shut down the boiler to clear old scale and accumulated sediment, and check the anti-scaling effect. Subsequent inspections should be scheduled accordingly.
4. Conduct strict supervision and frequently monitor changes in water level and quality.
5. Drinking water is temporarily not in use.































