Pressure rise, affecting the unit in the boiler even after the treatment of water also contains a variety of dissolved salts, gases and a variety of suspended matter, the existence of these substances will cause problems such as deposition, corrosion and so on. After a period of operation, the boiler will have a large number of calcium and magnesium scale and rust, these dirt firmly attached to the surface of the tube, resulting in deterioration of heat transfer, cycle operation efficiency, resulting in greater economic losses, while causing harm to the safe operation of equipment.

"Boiler descaling powder" overcomes the shortcomings and shortcomings of the previous cleaning methods, and provides a reliable technical guarantee for the safety, stability, economy and long cycle operation of all kinds of units.

A, the use of products 

This product can quickly and thoroughly remove all kinds of drinking water boilers, industrial boilers in the knot of a variety of dirt, and ultimately make the boiler clean and clean, while saving a lot of coal, reduce environmental pollution, extend the life of the boiler, applicable materials: steel, stainless steel, copper, aluminum and titanium and other metal materials and a variety of plastics, rubber, cement, Ceramics and other non-metallic materials.

B, the performance characteristics

1. This product takes full account of the user's specific situation, will clean the main agent, sterilization algae, disperse osmosis agent and high-efficiency corrosion inhibitor and other organic combination of organic acid cleaning agent, the use of the need to add any additives, simplify and facilitate the installation and operation of the cleaning site. 

2.Corrosion inhibition effectHigh rate, fast cleaning speed, etc., cleaning waste liquid treatment is simple and convenient, is conducive to the pre-film after cleaning. 

3. Can effectively inhibit the copper pipe in the pickling process of copper alloy-carbon steel composite parts of the puppet corrosion, anti-Fe3+, Cu2+ accelerated corrosion ability. 

4. This product selects the cleaning descaling main agent for the Organic series, the equipment safety, the descaling is thorough, the corrosion rate is low; to the operator basically no corrosive, the toxicity, the operation is simple, safe and reliable, at the same time, this product does not contain toxic and harmful substances, after simple medium and treatment can discharge, safe and environmental protection. Products using solid components, safe and simple to use, no damage to the human body, no corrosion to the equipment, no impact on the environment.

5. Reduce labor intensity, conducive to the direct use of users and regular cleaning and maintenance of boilers, saving equipment maintenance expenses.

6. In the cleaning process, H+ will produce corrosion to the metal body, and hydrogen embrittlement phenomenon, so the cleaning agent to add the corresponding corrosion inhibitor, dissolved Fe3+, Cu2+ and other oxidizing ions will cause the metal body pitting, copper plating and other phenomena, so the cleaning liquid also need to add masking agent.

C, Physical and chemical indicators

Project indicatos

State powder solid density: >1.5

Color White orLight red acid and alkaliSex: Acidic

Odor tasteless corrosion: slightly corrosive

Flammability, non-combustible, toxic, non-toxic

Cleaning performance, excellent, Corrosion inhibitionCan, excellent

D, How to use

Disconnect other systems that are not related to the boiler and will clean the tank,Cleaning pumps and potsThe furnace is connected into a cleaning and closing loop.

Chemical cleaning process: 

Water flushing → pickling and descaling → water flushing → passivation treatment 

4.1 Water flushing (leak detection) 

The purpose of water flushing is to check the leakage of the cleaning system in the simulated cleaning state, and to remove the loose dirt in the coil, when the outlet flushing Water visual no large particulate impurities exist, the water rinse ends. 

4.2 Pickling and descaling 

After the water rinse, in the cleaning tank cycle to add "Yunqing brand-boiler descaling powder", control cleaning main agent concentration in 3~6%, temperature in the range of 50~80℃, in the system for circulating cleaning decontamination, cleaning time of about 2-3 hours. Regularly use pH test paper to measure the pH value of the acid, so that it remains below 1, when the pH value in half an hour tends toStable valueAnd when there is no gas release in the cleaning system, the pickling process ends. 

Monitoring projects: 

PH value 1 times/20 minutes; 

4.3 Water rinse 

After the cleaning process is completed, rinse the water and rinse the residual silt and residue. When the exit of the visual impurities is not much, and the pH value is greater than 6 o'clock end of water flushing, pH value with a wide range of pH test paper detection.

Monitoring projects: 

Water rinse pH value 1 times/10 minutes 

4.4 Passivation Treatment 

After water flushing is qualified, the "Yunqing brand-passivation pre-membrane agent" is added to the passivation treatment to improve the corrosion resistance of the boiler. After mixing the whole system solution concentration evenly, heat the temperature to 60 ℃ and soak for 2-3 hours. Finally, the passivation solution eliminates the system and the cleaning process ends.

Monitoring projects: 

Circulating batching process pH value 1 times/10 minutes 

4.5 Cleaning effect 

After cleaning, open the cleaning system, from the cooling coil mouth to observe, the surface of the pipe should be clean, no residual dirt, no pitting and other phenomena.

E, Precautions 

Store in a cool place, sealed and preserved for a long time.