Water for the boiler
A steam boiler plant must operate safely, with maximum combustion and heat transfer efficiency. To help achieve this and a long, low-maintenance life, the boiler water can be chemically treated.
The operating objectives for steam boiler plant include:
Safe operation.
Maximum combustion and heat transfer efficiency.
Minimum maintenance.
Long working life.
The quality of the water used to produce the steam in the boiler will have a profound effect on meeting these objectives.
There is a need for the boiler to operate under the following criteria:
Freedom from scale - If hardness is present in the feedwater and not controlled chemically, then scaling of the heat transfer surfaces will occur, reducing heat transfer and efficiency - making frequent cleaning of the boiler necessary. In extreme cases, local hot spots can occur, leading to mechanical damage or even tube failure.
Freedom from corrosion and chemical attack - If the water contains dissolved gases, particularly oxygen, corrosion of the boiler surfaces, piping and other equipment is likely to occur.
If the pH value of the water is too low, the acidic solution will attack metal surfaces. If the pH value is too high, and the water is alkaline, other problems such as foaming may occur.
Caustic embrittlement or caustic cracking must also be prevented in order to avoid metal failure. Cracking and embrittlement are caused by too high a concentration of sodium hydroxide. Older riveted boilers are more susceptible to this kind of attack; however, care is still necessary on modern welded boilers at the tube ends.kind of attack; however, care is still necessary on modern welded boilers at the tube ends.
-
SZL series coal-fired hot water boilerLive Chat4.2-17.5 MW1-1.25 MPa
-
DZL series biomass-fired hot water boilerLive Chat1.4-7 MW1-1.6 MPa
-
QXX coal-fired CFB (circulating fluidized bed) hot water boilerLive Chat14-58 MW1-1.25 MPa
-
Email us
-
WhatsApp: +86 18861589035
WeChat: +86 13506150756
Live Chat
-
In recent years, Venezuela's food processing sector has experienced rapid growth alongside gradual economic recovery, with meat processing as a vital component of its food industry undergoing continuous expansion. Meat processing imposes stringent requirements on equipment performance, particularly steam boilers as core production facilities, whose efficiency, stability, and environmental compliance directly impact product quality and operational costs. This context has driven increasing demand ...25 Mar 2025
-
Luxshare Precision Technology Co., Ltd., established in 2017 with a total investment of 18 billion RMB, is a globally renowned manufacturer of precision structural components. It serves major brands in fields such as information technology, automotive, and consumer electronics. As an important overseas branch, Luxshare Precision (Vietnam) Co., Ltd. has been rooted in Bac Giang Province, Vietnam, since 2019, focusing on providing high-quality products to the global market. With rapidly growing ma...18 Mar 2025
-
In the context of the global energy transition and the ongoing advancement of carbon neutrality goals, ZOZEN Boiler’s R&D team achieved multiple industry breakthroughs in 2024. With systematic technological upgrades, the company is laying a solid foundation for high-quality development in 2025. As a leading enterprise in the industrial boiler sector, ZOZEN Boiler is showcasing the strength of Chinese manufacturing to the world through continuous innovation and product advancements. &n...11 Mar 2025