steam package boiler of capacity 1251 kg hr

Heating many users will choose two or more sets of hot water steam package boiler of capacity 1251 kg hr, together with the use of the benefits of doing so are threefold. 1, when the heating is in the peak period of three boilers can be operated at high load conditions, to meet the heating needs. 2, when the heating temperature is less demanding, which can initiate one or two boilers, while satisfying the need of heating, to reduce fuel consumption. 3, when a boiler regular maintenance, the other two can high-load operation, to meet the heating needs, not to delay the construction period. Second, the gas consumption of gas pressure hot water boiler runtime

Low nitrogen steam package boiler of capacity 1251 kg hr revolution to lead the industry in fact so much importance to the APEC summit in nitrogen oxide emissions from the boiler is not accidental. Nitrogen oxide emissions into the atmosphere dissolved in water will generate nitric acid rain, caused extensive harm to the environment, causing huge losses to the economy. For the boiler, fuel combustion is the main part of the nitrogen oxides generated. However, in most cities, nitrogen oxide emissions from the boiler still remain at a high level, or simply just to reach deeper coal to gas demand, low nitrogen, low dust and other environmental requirements far not on the agenda.

In production, there are often some thorny problems in steam package boiler of capacity 1251 kg hr operation. Needless to say, the editor for you to sort out the boiler operation common problems and solutions, after learning, do not forget to share with your friends oh. In the process of manufacture, transportation, installation and maintenance of boiler, it is inevitable that some impurities such as dirt, iron chips, welding slag, iron oxide and so on will be produced and glued to the pressure parts of the steam and water system in the process of manufacture, transportation, installation and maintenance. As soon as these impurities enter the steam-water system in operation, they will do great harm to the boilers and steam turbines. Therefore, the boilers before they are installed and overhauled must be chemically cleaned to remove them. Feed-in speed of boiler before start-up Degrees should not be too fast, generally no less than 4 hours in winter, other seasons 2 to 3 hours, especially in the initial stage of water should be slow. The inlet water temperature of a cold boiler is generally at 50 ℃ 90 ℃, so that the difference between the feed water temperature entering the drum and the wall temperature of the drum is less than 40 ℃. If the boiler is not fully cooled, the inlet water temperature can be compared with the drum wall temperature, otherwise, the inlet water speed should be slowed down. The reason is! (1) because the drum wall is thicker and the expansion is slow, the tube wall connected to the drum wall is thinner and the expansion is faster. If the inlet temperature is too high or the inlet speed is too fast, it will cause unevenness of expansion, crack of welding joint and damage of equipment. (2) when water supply enters When the drum is in contact with the lower wall of the drum, if the difference between the feed temperature and the wall temperature of the drum is too large, the speed of entering the water is fast, the upper and lower walls of the drum, the inner and outer walls of the drum will produce a larger expansion difference, resulting in a larger additional stress to the drum. Causes the steam drum to deform, produces the crack when serious. When the temperature of the heated surface is lower than the dew point of the flue gas, when the temperature of the heating surface is lower than the dew point of the flue gas, the steam in the flue gas is combined with the SO2,SO2 to form the sulphuric acid steam, which condenses on the heated surface. The boiler always causes low temperature corrosion of the heating surface first. The cold end of air preheater is prone to low temperature corrosion.

Electric hot water steam package boiler of capacity 1251 kg hr in which hot water heating: according to the requirements of the construction side, and taking into account the system utilization and lower initial investment and operating costs savings, the original designers chose a heat output for the project is the electric boiler 175KW ( h is calculated by the system heat consumption of 285KW), prepared as set capacity of 10m3 water tanks, pools, much lower cost and in an electrically heated steam boiler. Two circulating pumps, boiler heating flow 4m3 / h, head of 20m. And prior systems use low water peak (e.g. at night), a large amount of hot water storage tank water (design temperature of 55 deg.] C), to prepare for a continuous supply of hot water peak. The system boiler room and accommodation building is located about 160m, boiler room lying eight meters higher than the ground outside residential buildings; supply and return pipes are steel pipes DN80, where the hot water circulation return pipe is adapted from the original pipeline, when there are leaks It occurs; cold water replenishment system of the present self reservoir unit is supplied by a constant pressure to enhance the frequency of water supply device 0.35MPa, the apparatus 5 lying lower than the boiler room.

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