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Boiler shutdown furnace protection agent SGR 1912

Name: Boiler shutdown protective agent (amine emulsion)

Model number: SGR 1912

performance index:

 Performance use: the furnace stop protection agent SGR1912 is used for the stop protection of the unit maintenance period, and can also be used for the long-term stop (standby) protection of the unit. Add the furnace shutdown protective agent to the water vapor system before the unit furnace shutdown, which has a long-term rust prevention and protection effect on the unit for more than two years. The agent also shows a certain ability to remove the surface metal oxide scale, can reduce the boiler scale and clean the steam turbine blade surface, and stop the furnace protective agent has no adverse impact on the water quality when the unit is restarted.

Use method: when conditions permit, a special dosing system for stopping rust prevention agent (equipped with a large dosing pump and solution box can be added). When the special dosing system is added unconditionally, the original water feeding system and phosphate feeding system can be used.

Specific use of operating procedures:

① Stop adding phosphate to the furnace water and stop adding the ammonia to the feed water before the sliding stop operation of the unit;

② After determining the sliding stop operation of the unit, the sliding stop to the appropriate thermal parameters, such as the drum pressure of 8-9MPa, the corresponding saturation temperature is about 300℃, the superheated steam temperature is not higher than 500℃, start the relevant dosing pump or related valve, add the shutdown protective agent to the supply water and furnace water at the same time, and add the drug liquid within the predetermined time;

③ After adding the liquid, wash the solution box and the dosing system pipeline with desalinated water, and run stably for two hours under the secondary thermal parameters as far as possible. Stop the unit according to the normal shutdown process, and discharge the furnace water from the furnace;

④ According to the water volume of the water vapor system, 150-250 mg/L (calculated by effective concentration).

 Packaging and storage:

25kg or 50kg plastic barrels; store in a cool, dry place and stay away from oxidants and acid. In the process of transportation and storage, the furnace stop protective agent must be strictly prevented from contamination and mixed with impurities, and must be stored at room temperature within 12 months.

Safety and Protection:

Pay attention to labor protection during operation, avoid contact with the skin and eyes, and rinse with a lot of water immediately after contact.