Electric china heating boiler factory winter maintenance methods: cold winter approaching, north and south part of the city has gradually begun heating engineering. Boilers for its environmentally friendly, clean, no pollution, no noise, automatic and other effects electricity won the user favorite. So, how to maintain electric boiler should work to ensure the normal winter heating and other purposes?
When the gas hot water china heating boiler factory blowdown discharge techniques good compared to low load when the load of the boiler water level slightly higher vapor pressure boiler water circulating slowly, resulting in easy accumulation of dirt in the drum, the bottom of the collection tank, and the high vapor pressure high blowdown flow, to facilitate the discharge of dirt. Further, when the boiler blowdown must be provided for hand operation, the water level to be closely monitored to prevent the water preferably should be operated to maintain the sewage level again at around 60%. Drain valve open should be short intermittently every sewage quick-closing speed of the opening, causing the slag scale disturbances, thus repeated several times, the precipitate was suction rely possible to quickly meet at outfall, then concentrated discharge. To control the right time, not too long, usually once a sewage must be in the 30s of the time. If the discharge time is too long, the water content of soil furnace will be gradually reduced, so the effect of variation not only sewage, emissions have increased, not only a waste of energy, but also affect the boiler water circulation, and even burst pipe failure may occur. Observation of the given row after the flash tank vapor emission mouth, must touch the outfall temperature, and view given row Expander air outlet, in order to determine whether or not to confirm the drain valve is fully closed. Ruoyin debris stuck in the spool of the leak can be re-opened after a rapid close, if the issues shutting the valve wear and difficult, should strengthen surveillance, arrange repair or replacement as soon as possible, at the same time, should be prepared to shift on the record corresponding record, for subsequent inspection. In summary, the work of boiler blowdown, we must try to do a good job, both to ensure the smooth operation of the boiler, also can guarantee the life of the boiler.
Heilongjiang provincial government to respond positively to win the Battle of Blue Sky policy action plan issued by the Ministry of ecology and environmental protection, recently issued "on the issuance of Heilongjiang Province to win the Battle of the sky three-year action plan" (hereinafter referred to as "Plan").
"Plan" requirements, as of 2020, the province of sulfur dioxide, nitrogen oxide emissions are decreased year on year in 2015 to more than 11%; PM2.5 did not meet the concentration level and above cities fell year on year in 2015 to more than 15% , and above the level of urban air quality days ratio reaches 88%, and more heavily polluted year 2015 the number of days decreased the ratio of 15% or more.
"Plan" put forward 47 specific measures from nine aspects, namely: to adjust and optimize the industrial structure, promote the formation of green development; speed up the adjustment of energy structure, build clean energy systems; actively adjust the transport structure, the development of green transportation system; optimal adjustment of land structure, promote urban and rural non-point source pollution control; strengthening regional joint prevention and control, to effectively deal with heavy pollution weather; sound regulations and standards, improve environmental economic policies; for strengthening the infrastructure, strict environmental enforcement inspectors; clear responsibility for implementation of the parties, strict accountability assessment ; strengthen information disclosure, mobilize the whole society to participate.
"Plan" requirements, strictly control the total coal consumption.
1, in accordance with the focus on the use of coal and clean use of principles, focusing on reduction of non-coal for electricity, coal and oil to promote alternative energy by 2020, cities (prefectures) Coal accounts for the proportion of energy consumption fell by 1.5% compared with 2015.
2, bulk coal strengthening control, adjustment and optimization of high-pollution fuel combustion zone ban, the use of high-pollution fuel control, bulk coal alternative strengthening. Clean steadily heating, promoting the use of clean coal and clean energy.
3, to carry out comprehensive improvement of coal-fired boilers, to carry out level and above urban area 10 steam tons / hour coal-fired boilers and "clear" action. Improve energy efficiency, we continue to implement the dual-control operations total energy consumption and intensity.
4, accelerate the development of clean energy, and orderly development of wind power, biomass power generation and actively promote the construction of hydropower development focus on the promotion of river basins, and strengthen the development and utilization of geothermal energy exploration, increase renewable energy consumptive efforts.
Henan gas china heating boiler factory disabled corrosion prevention, mitigation methods in order to prevent or mitigate disabled corrosion protection measures should be adopted shutdown. Many Henan method gas boiler shutdown protection, mainly divided into two categories: wet and dry protection protection. Wet disable protection commonly used in the short time, for example within one month. Wet protection common method is to fill in the other peroxygen Henan gas boiler water or aqueous alkali, the holding pressure 0.3 ~ 0.5Mpa, to prevent air from leaking into the. If a longer shutdown, or cold weather, in order to prevent freezing equipment, should be protected by a dry method. After shutdown method, the temperature dropped to 70 ~ 80 ℃, the furnace was let go all the water, using waste heat of the gas boiler Henan the water in the heating surface all evaporated to dryness, and dried with compressed air without water vapor furnace all blown off, and then placed in the container-contained anhydrous calcium chloride to the drum. Per cubic meter of water volume ratio 0.5 ~ 1.0L of calcium chloride was placed (e.g., with lime according to 2kg / m3 basis), then the manhole is closed, periodically checked and found to be replaced when the desiccant into powder. Henan gas boiler can also be charged to charge ammonia or nitrogen is protected, its preparation and use as a desiccant. Since ammonia is lighter than air, so protection during charging and ammonia, the ammonia gas should enter the upper exhaust air from the lower portion. Nitrogen is slightly lighter than air, can enter the upper portion of nitrogen from the exhaust air from the lower portion. To prevent air from leaking into, the pressure should be maintained to 0.3 ~ 0.5Mpa, the pressure should be reduced to replenish ammonia or nitrogen.[email protected]
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