types of natural gas boilers
This standard at age requirement types of boilers flue soot, sulfur dioxide and nitrogen oxides emission concentration maximum permissible emission limits, and the blackness. This standard applies to coal-fired capacity and intended use of the fuel and emissions of air pollutants manage outside gas boiler boiler, and construction project environment (65t / h) In addition to power generation boilers and pulverized coal is greater than a single output 45.5MW impact assessment, design, final acceptance and after the completion of the sewage management.
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 types of boilerss, 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.
Temperature protection device during the fuel steam types of boilers over temperature to regulate protective effect of temperature protection is an important procedure fuel steam boiler safe operation is particularly important for the regulation and protection of the boiler temperature of the fuel vapor; at the same time to regulate in the fuel steam boiler overtemperature Protective effects. Conventional boiler temperature protection means is a bimetallic temperature controller. Flame protection: prevent explosion of the furnace, steam boiler fuel flame protection means must be provided, is a function of combustion (including ignition, combustion or misfires when halfway off, typically within five seconds reignition monitoring the furnace, a second the run off into the oil (gas) solenoid valve, and turns on and audible alarm signal, when the blower continues to operate, the residual gas was purged of combustible furnace, after 20 to 30 seconds purge, automatically cut off and various auxiliary blowers supply the boiler operation stops. role is to monitor the flame signal the presence of a flame or an interrupt control apparatus mainly using a photomultiplier tube, a photovoltaic cell and photosensitive resistance, they have an infrared type or ultraviolet type a photoelectric conversion element, the working principle of the light converted to the corresponding strength of the radiation strength of current and the linear output state, sometimes weak induction current, through amplification, in order to have an effect on the controller.
As the price of rice husk biomass fuels becomes more competitive, compared with traditional fuels such as coal, oil and gas, the demand for rice husk biomass power plant types of boilerss is steadily increasing. Subsequently, this has created a growing need for the manufacturing of boilers for these cleaner and more sustainable fuels. It is also widely used to handle the chaff, sawdust, wood wastes, bagasse and crushed straw, is a large rice mills, furniture factories, plywood factories, paper mills and vast rural areas agroforestry waste treatment, energy recovery, protection an energy-efficient boiler environment.