Oil or Gas Fired 4200 Kw Hot Water Boiler Price for Hotel

Gas steam boiler load changes in the water level of air pressure adjustment What happens next: load fluctuation gas steam boiler water level of the air pressure regulating what impact the boiler load refers to the amount of steam is supplied outside?. When the variation amount of steam needed outside world, boiler pressure, temperature, level crossing will move. When the load increases, the pressure drop in the water level is low, the air supply should be increased and the amount of coal. While enhanced combustion, and gradually increase the amount of water to maintain normal air pressure and water level. When reducing the load, the air pressure is high the water level rises, the amount of coal should be reduced and the air volume, reduce combustion, then the appropriate amount of water to reduce or suspend the water supply, the air pressure and water level in the stable nominal range, then press normally combustion and to adjust the amount of water. When reducing the load, the pressure rise when the water level is low, to increase the amount of water should be, until the water level returns to normal, then the need for air pressure changes and the load situation, and to adjust the combustion water.

At present several common boiler energy-saving technologies: usually for boiler manufacturers, it means that you are saving boiler to maximize the interests of customers, providing customers with unlimited fuel savings, the electricity consumption, water consumption and so on. But the wide range of energy-saving, does not refer to an aspect of optimization can save energy boilers, here's a look now common boiler energy-saving technologies: 1 furnace arch. Industrial boiler furnace arch is very important. Arch role is to cause the furnace hearth and the organization of the mixed gas and the radiation hot flue gas flow, ignition and combustion of the fuel in a timely manner. At present, the actual amount of industrial steam boiler with its rated load often do not match, the use of coal varies widely, but often with the design coal are quite different, so in actual use, often as necessary for the furnace arch modified to meet the needs of coals. Heteroaryl coal used by the inferior design coal, the boiler furnace exit gas temperature occurs is low (about 700 degrees), lower than 200 degrees design.

Water temperature increase impact on the thermal efficiency of the boiler? A: The water temperature to improve thermal efficiency of the boiler can be divided into two cases to discuss. The first case, assuming constant evaporation boiler. When the water temperature increase, due to the economizer heat transfer temperature difference is reduced, reducing heat absorption, enhance the tobacco temperature economizer, air preheater temperature and pressure increase, increase heat transfer, the hot air temperature increased slightly, smoke the temperature rises, so that boiler efficiency is lowered. However, after the water temperature increase, increase in the heat for evaporating the evaporation increases. In order to maintain unchanged the amount of evaporation, it is necessary to reduce the amount of fuel, which makes the exhaust gas temperature is lowered to improve the thermal efficiency of the boiler. Because of these two factors on the thermal efficiency of the boiler roughly, therefore, when the constant holding evaporation boiler, the thermal efficiency of the boiler feed water temperature increase substantially unchanged. The second case, assuming that the same amount of fuel. After the water temperature increase, decrease temperature and pressure economizer, economizer flue gas temperature, increasing the air preheater heat absorption, the exhaust gas temperature rises, reduce the heat efficiency of the boiler. Since the hot air temperature is increased, the furnace temperature increases, water wall heat absorption increases. After the water temperature increase, the heat for increasing the temperature is reduced, while increasing the amount of heat for evaporation. Therefore, the water temperature increase, if the fuel quantity constant, the increased evaporation, but the thermal efficiency is lowered. To sum up, raise water temperature, evaporation is kept constant regardless of the amount of fuel still remains the same, we can not improve boiler efficiency. However, to improve the water temperature, it does improve the thermal efficiency of the plant cycle, thereby reducing the coal consumption.

To continue to improve urban air quality, to ensure the safety of winter heating, heating Dalian Municipal Construction Committee Office will strictly enforce the "Clean northern winter heating plan (2017-2021 years)" (the "Plan"), and strive to achieve clean heating.

"Plan" put forward, Dalian will gradually increase clean heating rate, adhere to clean coal-fired central heating, local conditions of use of electricity, natural gas, solar energy (3.250,0.04,1.25%), biomass and other clean energy heating, heat storage are encouraged to promote electric heating type and other ways; the existing thermal power plant, waste heat of industrial enterprises depth potential, priority use of heat source heating to achieve ultra-low emissions; research to develop clean energy heating pricing policies; supporting natural gas pipeline network to speed up urban construction, in the implementation of the gas source, guarantee under the premise of residents to use gas, natural gas heating in an orderly way.

Continue to optimize heat distribution. Speed ​​up the construction of heating pipe network, out of network coverage and bulk coal fired boilers within range. In areas do not have the cogeneration district heating conditions, the existing multiple small coal-fired boilers, alternative construction of large-capacity coal-fired boilers in accordance with the principle of equal volume.

2018, the city built-up area basically integrated heating. 2019, the county level and above the basic integration of urban built-up area of ​​heating. Before the end of 2020, according to the special plan for urban heating requirements, the county level and above in urban built-up area within the range of 300,000 kilowatts and heating cogeneration power plant over a radius of 15 kilometers, coal-fired boiler and does not meet the ultra-low emissions of coal-fired power plants all closed down integration.

2018, above the level of removal of industrial parks and 10 tons of small coal-fired boilers 49 units, 265 units and 10 tons of banned coal-fired boilers since 2014, new registrations. 2019, to improve the standard phase-out of coal-fired boiler, expand the scope to promote the elimination of urban built-up area of ​​20 steam tons / hour (or 14 MW) and coal-fired boilers. 2020, except in accordance with urban heating heating boiler special plans need to retain outside built-up areas at the county level and above cities 20 steam tons / hour (or 14 MW) and coal-fired boilers to be eliminated.

Gradual development of ultra-low emission ultra-low emission coal-fired power plant renovation, started in 2018 and the North Sea thermoelectric thermoelectric Taishan ultra-low emissions renovation, completed in 2019 Heung Hoi coal-fired thermoelectric power plants and other enterprises reform, in 2020 to complete a full ultra-low emission coal-fired plant transformation .

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