about us sitong boiler manufacturer sitong steam
Besides, as to internal cfb about us sitong boiler manufacturer sitong steam, it has submerged tubes in chamber. And commonly, those submerged tubes serve for 1 to 5 years.
Fangkuai about us sitong boiler manufacturer sitong steam for you to sort out 30 boiler operation common problems and solutions, after learning, do not forget to share with your friends oh. 1, why chemical cleaning of newly installed and overhauled boilers? 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. 2. What are the rules for the time and temperature of water supply before boiler start-up? Why? The inlet speed of boiler before start-up should not be too fast, usually no less than 4 hours in winter, 2-3 hours in other seasons, especially in the initial stage of water intake. 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 ℃. The inlet water temperature of the uncooled boiler can be compared with the drum wall temperature, and the general difference should be controlled within 40 ℃, otherwise the inlet water speed should be slowed down. The main reasons are as follows: (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 the feed water enters the drum, it always contacts the lower wall of the drum first. If the difference between the feed water temperature and the drum wall temperature is too large, the speed of entering water is fast, the upper and lower walls of the drum and the inner and outer walls will produce a larger expansion difference. Cause large additional stress to steam drum, cause steam drum deformation, produce crack 3 when serious, how does the low temperature corrosion of tail heated surface produce? Formation of SO2,SO2 from sulfur Combustion in fuel combined with oxygen in flue Gas to form SO3, when the temperature of the heating surface is lower than the dew point of the flue gas The steam in flue gas is combined with SO3 to form sulphuric acid steam, which condenses on the heated surface and results in low temperature corrosion of the heated surface. The cold end of air preheater is prone to low temperature corrosion. 4, when the emergency shutdown? (1) when the drum water level exceeds the limit. (2) when all water level gauges of the boiler are damaged. (3) explosion of superheated steam pipeline, reheated steam pipeline and main water supply pipeline. (4) when reburning occurs at the end of the boiler. (5) all suction, fan and air preheater stop operation. (6) when reheating steam is interrupted. (7) Boiler pressure rises to safe door operating pressure, and all When the safety door refuses to move. (8) when an explosion occurs in the furnace or in the flue causing serious damage to the equipment. (9) when a boiler extinguishes a fire. (10) when a fire breaks out in the boiler room, it will directly affect the safe operation of the boiler. (11) when the furnace tube blasting cannot maintain the normal water level of the drum. (12) when all operator stations are blackscreen or crash at the same time and the main parameters are out of control. 5, how do I flush the drum water level meter? There are three processes for flushing the water level gauge: water side flushing: opening the drain gate, closing the steam side door, opening the water side door; steam side flushing: opening the discharge door, closing the water side door, opening the steam side door; Open the discharge door, open the steam side door, open the water side door. Rinse and close the drain door.
It will be the use of low-quality parts, and there is no good or processes, etc. on the body of the about us sitong boiler manufacturer sitong steam. Although such boiler can also be used, but it's difficult when used to enhance the quality. Moreover, the production of gas boilers, it also has different strengths. The quality of any product are also affected by the strength, and if the user selects the strength of manufacturers of boilers, from the outside and then have a better performance, not only has higher thermal efficiency, but also has good energy-saving advantages, is because it is technically in all aspects it was better deal.
Coal-fired about us sitong boiler manufacturer sitong steam to carry out a comprehensive investigation and remediation work, Luohe City, Henan Province, Li Jizhen provincial, city and town each environmental supervision departments centralized call the relevant personnel, three-pronged approach to work.
First, a comprehensive investigation to find out the base.
Li Jizhen town for all industrial enterprises, restaurants, vermicelli processing plants, farms and other coal-fired boiler with a boiler units diagnostic investigation, the establishment of coal-fired boilers ledger, so base-clear, the situation is clear.
Second, clear standards, conducting pressure.
Town leaders organized the renovation work conference of coal-fired boilers, the boiler so that the user's overall reform and the dismantling of scheduling, the town must be eliminated in the formation of boiler upgrade, you do not need to be removed out of shutting down consensus.
Third, actively coordinate, and assign responsibilities.
Natural gas is being implemented in conjunction with the "double substitution", and actively coordinate the gas boiler equipment suppliers in collaboration with the local gas company, entered into a collaboration, timely completion of "substitution of gas for coal" upgrade tasks.
As of now, the town has shut down six coal-fired boilers, the implementation of "substitution of gas for coal" boiler upgrade eight, effectively promote the prevention and control of air pollution.