building heating boiler

Processing gas building heating boiler maintenance which issue large scale potential harm to the boiler should be noted that, while it can be achieved by two methods outside the boiler water treatment and boiler water treatment, to reduce the scale of production and removal of scale, reduce boiler scale potential hazards. 1, the outer pot + water ---- lime soda softening of this method for a variety of boiler. Currently a reliable treatment effect of the outer pot + soda lime softening, lime is added an appropriate amount of soda ash and the softening has been clarified water to the object. There are two kinds of hot and cold process methods lime and soda softening. Cold process is carried out at room temperature, the residue in water hardness to 1.5 to 2 mEq / l. Calorimetry is heated to a temperature of 20 ~ 80 ℃, residual water hardness to 0.3 to 0.4 meq / liter. Thus, thermal method should be adopted to improve the softening effect. Ion exchange softening mainly by sodium ion exchange exchange resin softening treatment. Due to the strong exchange resin adsorption capacity, capable of free water in the calcium and magnesium ion adsorption, so that the hardness of the boiler feed water meet the eligibility criteria. Ion exchange agents are inorganic and organic two categories. Inorganic surface exchange exchange resin only, a softening effect is poor, less use. Characteristics of the organic-exchange resin is a particulate core loose structure, while the exchange reaction may be carried out on the particle surface and an interior, good softening effect, it is used more. 2, the pot water added Chemicals ---- This method is mainly added to the boiler water chemicals, calcium scale formation in boiler water, magnesium loose sediment formed, then the method will sediment discharge sewage out of the furnace, serve to prevent boiler scaling effect (or decrease). The syrup furnace process generally used for compact low fire tube boiler. Pot of water treatment commonly used drugs are: trisodium phosphate, sodium carbonate (soda ash), sodium hydroxide (caustic soda, also known as caustic soda) and organic colloids (tannin) and so on. When dosing, the various drugs will first be formulated as a solution, and then added to the boiler. Trisodium phosphate concentration of the solution is usually 5 to 8% concentration of the solution is less than 5% of sodium carbonate, sodium hydroxide concentration of not more than 1 to 2%. Dosing methods have regular and continuous dosing two kinds. Dosing regularly performed mainly by gallipot dosing; continuous dosing of the water supply device before the drug is added to the water continuously. For steam boiler, preferably a continuous dosing method, so that the furnace can maintain a uniform drug solution. Where the use of pot for water treatment, boiler blowdown should be strengthened, so that sludge, dirt and other baked row already formed outside, receive better results. Zheng pot is equipped with a computer-controlled automatic boiler water softener (e.g. Tuzu, Fleck). Its advantage is the high degree of automation exchange of large capacity, low salt consumption, low power consumption, reasonable structure, easy to install, reliable performance, completely avoid human interference, lightweight package of equipment structure, strong corrosion, also possible to control part of a conventional manual device with automated to be modified.

Low nitrogen gas building heating boiler by what the cause is recognized by consumers: low nitrogen gas boiler is the boiler industry of environmental protection and energy development path towards a major innovative products, good quality high quality low nitrogen gas into the boiler and low in production technology nitrogen processing technology, to get more energy use, and thus recognized by consumers. The low nitrogen boiler sought after by consumers, there are many reasons, not limited to the above-mentioned contents. 1, self-heating boiler performance is good, small heat loss. The reason for consumers to buy high-quality low-nitrogen gas boiler, mainly due to a low nitrogen gas boiler in use, air and flue gas heat treated separately, thus the thermal efficiency of the boiler can be achieved several times normal, fast heating rate to meet the needs of ; and low nitrogen gas boiler also added more measures high temperature, so that it is longer life than ordinary boiler, and this device can be used to meet during a stable heat supply, by means ensures secondary air and fuel gas the full combustion. 2, to meet the trend of environmental protection in China. Two of the country this year, the same green or hot topic, not only by the government's support and guidance, but also allow consumers to form a concept of sustainable development. Low nitrogen gas boiler is to meet the environmental policies of the mainstream products. By reducing nitrogen emissions, reduce environmental pollution, lead to better development of China's environmental protection cause.

Harbin Ecological Environment Agency announced plans to complete this year, Harbin more than 65 tons of steam coal-fired building heating boiler soot ultra-low emissions and transform 140 units, ultra-low emissions of sulfur dioxide coordination to complete the transformation of 51 units, ultra-low emissions of nitrogen oxide transformation 20. Currently, the transformation plan has been, is being gradually start building renovation project.

Harbin nine districts built-up area and more than 65 tons of steam coal-fired boilers totaling 156 units, according to the national, provincial requirements, before the end of 2020 to complete the transformation of ultra-low emission. By the end of 2018, it has completed the transformation of ultra-low emissions to 16, and the remaining 140 units planned to complete the 2020 pre-season heating. This year's program priorities ultra-low emissions of soot complete transformation of 140 units, ultra-low emissions of sulfur dioxide coordination to complete the transformation of 51 units, ultra-low emissions of nitrogen oxide transformation 20; completed 2020 pre-season heating boilers remaining sulfur dioxide, nitrogen oxide pollutants over low-emission transformation. Up to now, the district had been held property unit boiler promotion meeting, 28 companies have 140 boiler by one to clear a specific time frame for completion and responsible persons, are gradually start building renovation project, planned before the end of September to complete the transformation of building construction; the end of October front, complete run debugging; before the end of December to complete the project acceptance.

It is understood, Harbin source of ambient air particulate matter analysis result display, the largest contribution to the PM10 and PM2.5 pollution sources are fired, share ratio of 31% and 36%, respectively. Ultra-low emissions of coal-fired boilers is mainly transformation soot particulate matter reducing emissions to the atmosphere, thereby reducing the concentration PM2.5, effectively improve air quality.

Boiler shutdown within the first 6h, need to close all the smoke, because wind baffles and the door: the normal cooling and building heating boiler shutdown after emergency cooling, in the first 6h after shutdown are identical, are required to close all smoke, wind, and the bezel door. When the difference is that the normal cooling, can be opened after shutdown 6h cited blower baffle natural ventilation, while emergency cooling, allowing 6h after shutdown and start the induced draft fan ventilation Sheung strengthening, accelerated cooling to turn on the water .

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