What are the common boiler maintenance methods for Suzhou Taxing Boiler
When the shutdown time does not exceed one week, pressure maintenance can be used. That is, before the shutdown process is completed, the soda system is filled with water, the residual pressure is maintained at (0.05 ~ 0.1) MPa, and the temperature of the boiler water is above 100 ° C, which can prevent air from entering the boiler. The measures to maintain the temperature of the pressure in the boiler are: heating by steam from the adjacent furnace, or regular heating by the furnace.
When the boiler is not used for more than one month, wet maintenance can be used. Wet maintenance is to fill the boiler soda system with soft water containing lye, leaving no steam space. Because an aqueous solution with proper alkalinity can form a stable oxide film with the metal surface, preventing corrosion from continuing. During the wet maintenance process, a micro-fired oven should be used regularly to keep the heated surface externally dry. Turn on the pump periodically to circulate the water. Regularly test the alkalinity of the water. If the alkalinity decreases, the alkali should be added appropriately.
3. Dry maintenance
When the boiler is out of service for a long time, dry maintenance can be used. Dry maintenance refers to the method of placing desiccants in the pot and furnace for protection. The specific method is: drain the boiler water after stopping the furnace, use the remaining temperature of the furnace to dry the boiler, remove the scale and slag in the boiler in time, then put the tray containing the desiccant into the drum and the grate, and finally close all Valves and manhole, hand hole doors. Check the maintenance regularly and replace the desiccant in time.
4, inflatable maintenance
Inflatable maintenance can be used for long-term furnace shutdown maintenance. After the boiler is shut down, do not put water in to keep the water level at the high water level. Take measures to deoxidize the boiler and then isolate the boiler water from the outside world. Pass in nitrogen or ammonia to keep the pressure after inflation to (0.2 ~ 0.3) MPa. Since nitrogen can generate oxygen oxide with oxygen, it cannot contact the steel plate. Ammonia dissolves in water and makes the water alkaline, which can effectively prevent oxygen corrosion. Therefore, nitrogen and ammonia are good preservatives. Inflatable maintenance effect is better, to ensure that it requires a good tightness of the boiler soda system.
Suzhou boiler, Suzhou water heater, Suzhou commercial water heater, Suzhou electric water heater, Suzhou heat pump
Suzhou Tayuan Boiler Co., Ltd.
Contact: Manager Wu
Address: No. 188 Wanchen Road, Wangting Town, Xiangcheng District, Suzhou City, Jiangsu Province