Weak current College】 【hot water boiler and heating system preservation --- Power By】 【China power house network.

For years, people always have hot water boiler and mining warm anticorrosion and oxygen directly. As long as a reference to corrosion, it must in addition to oxygen. And hot water boilers and heating systems and without a good oxygen method, so that this problem has been around for many years. In fact, this is precisely the hot-water boilers and heating systems for corrosion protection of a misunderstanding, and misunderstanding that came out this will be a new land.

1 hot water boiler and heating system preservation--GB1576 in: pot-chemical treatment of water supply should be control of dissolved oxygen is less than or equal to 0.1mg/L. Since China's most hot water boiler and heating system of water supply are based outside of the pot, so the chemical processing to water quality, it must in addition to oxygen, design departments in designing boiler house is also designed the oxygen equipment, this is causing people to enter the direct cause of the corrosion misunderstandings. In addition to the applicable to evaporation is greater than or equal to 10t/h of steam boiler heat deaerator can ensure the effectiveness of oxygen, for hot water boilers and heating systems are not very good oxygen.

2. the current use of oxygen corrosion protection method of defects:

A) sulfite deoxidization

B) analysis of oxygen

C) resin deoxidization

D) sponge iron deaerating regardless of the deaerator method, even if make-up water of dissolved oxygen is less than or equal to 0.1mg/L, cannot keep hot water boiler and heating system fundamentally antiseptic.

It has two aspects: one is the circulating water of dissolved oxygen concentration (in circulating water without oxygen measures) depends on the make-up pumps and water circulating pump for leaks. If the pump leak, the runtime has a large number of air from the pump's suction inhaled water system, causing the system seriously oxygen corrosion; the second is due to the hot water boiler and heating system in operation is not dominated by oxygen corrosion; therefore light oxygen cannot be fully preserved.

3, hot water boiler and heating system corrosion mechanism, hot water boiler and heating system, running to CO2 corrosion and fouling of corrosion, corrosion as a supplement to oxygen, stopping to oxygen corrosion, scaling down corrosion.