water heating system by boiler exhaust

Steam water heating system by boiler exhaust normal operation and normal operation of steam boilers and Management Working To do: strengthen the inspection of various equipment and instruments, to maintain the normal water level in the boiler, steam pressure stable, keeping the boiler room tidy, do shift work. 1, boiler feed water and requirements: In order to extend the life of the boiler, fuel economy, to ensure the quality of steam, to prevent scale boilers to cause slag corrosion damage and accidents member, the unit should use "industrial boiler water quality" in accordance with GB / T1576-2008 of provisions, the selected water treatment and oxygen equipment based on water quality and production requirements in the region, did not take reliable water treatment measures, the boiler must not be used. 2, the pot water level: always pay attention to the pot water level changes, to keep the water level within the normal range of ± 15mm can not be below the minimum level or above the highest water level in the water table generally slightly shaking phenomena, such as stationary water , the blockage may have a water table, should be cleaned immediately. 3, water table: class rinse water gauge at least once, to ensure that the water level legible, found glass washer leaking steam leakage when tightening the packing, there are two boiler water table, if one of them is damaged immediately shutdown until the repair can continue to run. 4, water supply equipment: Driving in the shift to check whether normal pump, if fault, repair or replace it immediately. 5, gauge: gauge bend should be cleaned once per shift, to view pressure gauge is normally found immediately shutdown to repair or replace damaged. 6, valve Note: a safety valve is normal, lever handle should be regularly carried out exhaust testing, the valve seat to prevent adhesions. 7, shift: To ensure safe and reliable economy class, fireman really good job following work should shift: (1) take over the boiler room fireman to arrive within the specified time, do succession prepare. (2) the shift fireman to do: boiler steam pressure and the water level is normal. Stable combustion in the furnace. Each device is operating normally. Each boiler accessories (including piping, valves, meters) safe, sensitive and reliable. Boiler room clean, tidy and well-lit. (3) To fireman serious and responsible to do the work and make shift operation records.

The importance of harm and water heating system by boiler exhaust water quality test of the importance of chemical hazards and inspection of boiler water chemical plant 1, the main hazards of chemical plant boiler boiler water quality chemical analysis forehead in actual operation, there will be many problems, including water quality chemical factory boiler operation have serious injuries. Water can be divided into dissolved substances, suspended solids and colloidal material. If the water quality is not timely and effective treatment, the normal operation of the boiler will be seriously affected. Boiler equipment suspended solids precipitation can reduce the capacity of the device, Yield and product water quality of water, burst pipes and clog. The gel content will lead to the normal operation of the scale, water quality impacts of the boiler in the boiler will be due to the thick scale, will produce metal overheat, causing the accident. 2. The importance of chemical analysis of boiler water quality testing water quality testing chemical plant boiler foundation is to ensure safe and stable operation of the boiler. Since the detection of the heavy workload of industrial boilers, and boiler safety inspection based, it is particularly important. According to state regulations, only for chemical plant boiler testing, to ensure the safety of the boiler, check one of the indicators of water quality and safety of the boiler boiler has a great relationship, and water quality and safety of the boiler and the boiler has a great relationship. If the scale is too thick, heat transfer performance will be greatly reduced, resulting in waste of resources.

Further, with respect to a conventional water heating system by boiler exhaust, the combustion furnace is a more condensed closed, easily discharged flue gas and dust particles, are particularly prone to the phenomenon of gray block. Ash fouling early form of fluff, viscous connection block will occur after absorbing a large amount of acid, to further influence flue gas emissions, to promote the formation of acid, both affect each other, a vicious cycle. So, latent heat recovery boiler is not difficult, how rare is the solution to corrosion and plugging ash. 1, a secondary heat exchanger described formula: in such a conventional smoke vents installed fireplace plus a secondary heat exchanger device, also known as "false condensate." In fact, it is also a way of condensing the late 1980s and early 1990s was the development and use, Europe has been basically eliminated. While there are indeed condensation effect, but the premix and condensing technology currently on the market compared to vary greatly. At present, China and South Korea is part of the manufacturers. Advantages: low cost, rapid business transformation. Disadvantages: the acidic substance and the content of nitrogen oxides, corrosion resistance is poor. Mainly because it does not do a particular aspect of a combustion process in the main heat exchanger, too much excess air may promote the production of a large amount of an acidic solution, severe corrosion member. Therefore, such a condensing boiler even with increased corrosion of stainless steel, but the cost also determines the cost of his resistance to corrosion is very limited, short two condensing heat exchanger life. Which the non-air premix gas ratio, but also allows part of the heat loss. 2, cast aluminum finned coil description:

To further promote the comprehensive management of coal-fired water heating system by boiler exhausts, Jincheng City, Shanxi Province, according to "Jincheng Blue win the Battle of three-year action plan" requirements, plans to complete 109 units of 10-20 tons of steam "small coal-fired boilers" within this year the phase-out, at the same time, Jincheng will start working out of 35 tons of steam coal-fired boilers.

This year, Jincheng counties (cities, districts) the environmental sector will urge the relevant enterprises and institutions to eliminate the basis of 10 tons of steam and coal-fired boilers on in 2018 to accelerate the phase-out and 20 tons of steam coal-fired boilers. This year, the city to complete 109 units (10-20 tons of steam boilers) working out of a total of 589.5 tons of steam boilers; at the same time, Jincheng will also speed up the foundation and 20 tons of steam coal-fired boiler out, start 35 tons of steam phase out coal-fired boilers, in principle, within the city's new domain-wide 35 tons of steam coal-fired boilers.

In addition, Jincheng will accelerate the transformation of ultra-low emission. Before the end of September this year, the city will complete 52 units (65 tons of steam per hour and higher coal-fired boilers) coal-fired heating boilers ultra-low total of 4530 tons of steam boilers transformation, and the county (city) built-up area, biomass boilers emissions transformation. After transformation, under condition of the reference oxygen content of 6%, soot, sulfur dioxide, nitrogen oxides emission concentration of these boilers respectively not higher than 10 mg / m, 35 mg / m and 50 mg / m.

Transformation of low nitrogen in the combustion aspect, before the end of October, Jincheng station 610 will complete the transformation of low-nitrogen combustion Total 1940.15 tons of steam gas boiler, after completion of the transformation, the boiler NOx emission will not exceed 50 mg / m.

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