The sum of the concentrations of Ca2 and Mg2 in water is called the hardness of water. It is clearly stipulated in the regulation of boiler supervision that the hardness of boiler water is ≤ 0.03mmol/L.Ca2 and the Mg2 is distributed in water in the form of ions, even if the water is softened, there are still some sulfate ion and bicarbonate ion in the water. Because bicarbonate ions are always dissociated in water, i.e.: HCO3-A→H++CO32-(1). Although the dissociation is very weak in this process, the dissociation is strengthened due to the (2), (3) reaction. Then, in boiler operation, there are always conditions for the formation of insoluble substances: Ca2++CO32--CaCO3(2). Mg2++CO32-→MgCO3+(3)
Oil-fired boiler blowdown several aspects of oil-fired boiler blowdown required, which to me is clear to everyone, but the sewage discharge are several aspects which I think a lot of people are not very clear. The main purpose of sewage in the following areas: (1) exclusion of salt and alkali excess boiler water, boiler water quality indicators, always controlled within national standards requirements. (2) within the junction to exclude dirt green boiler. (3) oil and foam surface water boiler blowdown. Secondly, the significance of the oil-fired boiler blowdown are 2 points: an important part of the water treatment works (1) boiler blowdown is an important measure to ensure that the boiler water concentration meet the required standards. (2) the implementation of planned and scientifically sewage, to ensure good water quality boiler is slow or prevent scale knot students to ensure the quality of the steam boiler and an important measure to prevent metal corrosion. These are the main purpose of oil-fired boiler on the following aspects of sewage and sewage sense of hope that we all have to help.
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The quality of low nitrogen gas boiler quality assessment of four indicators in recent years, low nitrogen gas boiler was welcomed and the use of more and more enterprises, which is the main reason for our emphasis for green energy saving significantly improved, low nitrogen gas boiler and in this direction our country is in line. Considering that many users are new to a low nitrogen gas boilers, boilers for selection, not know where to start, fast boiler summarize the following four points, quality assessment of the quality of a low nitrogen gas boiler four indicators. 1, if there is a good control system boiler control system is equivalent to the "brain" has a good brain is stable operation of the gas condensing boiler, burning effectively ensure security, the main control object includes a burner, circulation pump, water supply pump, etc., a good control system to achieve its manual / automatic switching control, condition monitoring, recording history data, fault self-test functions. 2, if there is a stable output power to ensure stable output power source is a gas condensing boiler efficient operation, but the output power is not always better, but the user is determined according to their own needs, such as gas processing enterprises low nitrogen vapor boiler, steam output is generally the amount of production scale and decided according to demand. 3, security features are complete low nitrogen gas boilers are industrial special equipment, if the safety features do not, will cause leakage within the combustor, combustion is not sufficient, dry and other security risks, will occur in severe danger of explosion. Good security system should meet the following requirements: the boiler temperature display, temperature control, over-temperature alarm systems provided independently of each other; level, temperature, pressure protection; abnormal power protection. 4, brand service is perfect when the boiler manufacturers to build low nitrogen gas boiler brand, not only to obtain benefits, but also peace of mind for the user. But there are many small boiler plant just look at the immediate, do one-shot deal for the user to purchase aftermarket incomplete or no, this is for users, will lose a lot of interest. Reach users are generally large boiler manufacturers with the ultimate goal of long-term business, from pre-sale to after-sales, has established a perfect line of work, there is a problem when using the boiler once the user, they will quickly send technical personnel on-site guidance, treatment is very timely. A gas boiler is still low nitrogen innovation, the fast boiler just the status quo, summarizes these four major factors, users also need to select key consideration boiler equipment, such as industrial applications need to focus on the output power according to their actual needs, the home pay more attention to brand the service and security protection, so we need to do a good job of trade-offs.
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