circulating fluidized bed boiler energy efficiency

Before steam circulating fluidized bed boiler energy efficiencys need to be warm tube steam boiler pipes with boost heating and booster heating up, so not only eliminates the need for time to warm the pipe, but also safe and convenient. Single boiler operation. The steam pipe is not long, this method may also be employed for heating pipes. When heating pipe, such as pipe expansion and found to support and hanger has not normal, or large shock sound, indicates that the temperature rise is too fast heating pipe, the steam supply to be slow speed, i.e., slow down steam valve opening speed, to extend the warm-time. If the sound is too large earthquake, steam valve should be closed immediately stopped and opened the big trap to warm the pipe, to be carried out to identify the cause and then eliminate the fault. After heating pipe, closing the trap on the pipe. After preheating steam pipe, the steam supply can be carried out, and the furnace. Warm steam tube suddenly send inner steam pipe freezes, forming a localized low pressure steam condensate entrained impact to a lower pressure, water hammer can hammer water pipe deformed bad shock, damage to insulation, the pipe can be severe shattered. Thus the steam must be sent before the heating pipes. Before heating pipe, the first open all traps on main steam line discharging condensate accumulated in the steam pipe, and then slowly open the steam boiler main steam valve to about half a turn (or slowly opens the bypass valve), so that a small amount of steam into the duct, its temperature gradually increased, until the pipeline is fully warmed up and then the main boiler steam valve fully open.

2, different heat loss

In order to maintain sufficient coal-fired boilers burning efforts require the use of human or other device to stop adding coal-fired furnace, when the need intermittent operation, it takes a long time to start again to increase the furnace temperature, pressure fire will produce great heat loss, and very easy to start and stop the gas boiler can quickly heat up the intermittent operation, thereby reducing heat loss in this process.

5. Substantial regulatory challenges in securing grid connection and electricity payments

The biomass fuel characteristics play a major role in horizontalboiler technology selection. Parameters of particular importance are the moisture content, particle size, the ash melting temperature and the presence of corrosive elements such as chlorine or sulphur.

Inner Mongolia Autonomous Region Development and Reform Commission issued a notice publicity Inner Mongolia clean heating in winter embodiment (hereinafter referred to as "Notice"), "notice" mentioned that in 2019 the region to achieve clean heating rate of 50% in 2021 to reach 705; urban built New forbidden zone 35 tons of steam / hour and below the coal-fired circulating fluidized bed boiler energy efficiencys, which Hohhot, Baotou, Wuhai city urban area will phase out 35 tons of steam / hour and below the coal-fired boilers, all new buildings to achieve clean heating.

The region's total heating area of ​​about one billion square meters of urban heating an area of ​​about 750 million square meters, of which: decentralized heating an area of ​​about 090 million square meters; central heating an area of ​​about 660 million square meters, heating rural area of ​​about 250 million square meters, of which central heating an area of ​​about 027 million square meters, the rest are dispersed heating.

Urban areas mainly in the CHP and district heating central heating boiler room mainly to gas, industrial waste heat, wind power, solar and other energy sources to supplement heating. Rural areas with decentralized heating the main heating source mainly scattered coal-fired boilers, conventional coal-fired furnace or straw.

Urban district heating cogeneration accounted for 51.5%, the proportion of area of ​​43.6% heating boiler, gas heating accounted for 4.5%, the proportion of the heat pump in other ways, electric heating and the like about 0.4%.

To clean as the goal, in ensuring the safety of people's livelihood heating premise, overall thermodynamic equilibrium between supply and demand, either alone or using a combination of various cleaning heating mode, alternative urban area and would like to keep burning coal for heating casual, less warm air pollutants areas emission. Adhere to safety bottom line, build a reasonable size, safety and reliability of heat supply systems.

2, according to local conditions, the residents can afford. Based on natural resources, economic strength, infrastructure around such as regulation and install air pollution control requirements, scientific assessment, depending on the region to its own characteristics, full old people's consumption capacity, adhere to both energy security and clean development, should power the electricity, should be coal is coal, the gas should be air, clean heating strategy adopted XI, to promote its low cost and low pollutant emission cleaning combination heating under the same conditions.

Considering the urgency of the air pollution control, affordability, work to promote the difficulty and other factors, co-ordinate the work of promoting cleaner heating city, county and urban-rural.

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