Cause of abnormal gas steam boiler stall phenomenon gas steam boiler and treatment of non-normal stalling reason, phenomena and treatment 2013-1-139: 17: 30 to cause a flameout: 1, or the operation of the auxiliary trip power outage. 2, boiler combustion instability. 3, the load is too low, so that the load sharply mill automatic ignition energy loss or failure of combustion. 4, mutant coal, volatile or low calorific value gas. 5, the automatic combustion flame detector failure or failure caused by tripping mill. 6, or blast furnace wall tubes serious improper boiler soot-blowing operation, a large amount of water vapor into the combustion chamber. 7, coal pulverizing system, fuel system failure, resulting in a significant amount of fuel reduction or interruption. Or with a large amount of water in the fuel oil gun blocked too many impurities, low pressure steam or atomized. Second, the phenomenon: 1, a significant increase in furnace pressure, furnace flame monitoring flameless CRT display. See the fire no fire hole, BTG warning window MFT warning lights. 2, the unit load decrease, the steam flow drops rapidly, each segment working medium temperature, the vapor pressure decreases, the value of oxygen surge. Third, the method of treatment: 1, if the MFT tripping protection, should an emergency shutdown processing, stop the supply of fuel. 2, identify the cause flameout, and try to eliminate, to conduct a comprehensive inspection of the boiler, after confirming the device properly, can restart.
Gas-fired steam boilers are also more convenient to use in operation, so they will be favored by users of all enterprises. All natural gas pipelines are just as convenient as tap water for domestic use, and there are no problems with sustainable use. It eliminates the cumbersome work of using coal to transport or stack and clean coal cinder.
Talk about the overall structure of the furnace boiler boiler boiler and auxiliary equipment, including two parts. Boiler furnace, drum, burner, water wall superheater, economizer, air preheater, and the furnace wall, etc. The main frame member constituting the core part of the steam production, called boiler. Boiler body is in two main parts and drum furnace. Today, we are concerned that the furnace boiler. Also known as boiler furnace combustion chamber, fuel combustion for space. It solid fuel on to the grate, referred to as a fire bed combustion furnace Stoker, also known as the fire-bed furnace. Solid fuel liquid, gas or pulverized, is injected into the furnace fire chamber may be referred to as a combustion chamber of the burner, also known as the furnace fire chamber. The coal particles and air hold it was boiling point of combustion, the furnace and adapted called inferior fuel combustion fluidized bed furnace, known as a fluidized bed furnace. An air flow so that the coal particles rotated at high speed, and strong burning furnace called cylindrical cyclone furnace. Boiler furnace cross-section is generally square or rectangular. Combustion fuel to form a flame in the furnace and high temperature flue gas, so the hearth around the furnace wall is made of refractory material and insulation material. On the inner surface of the wall of the furnace waterwall tubes often laid, it will not burn both protect the furnace wall, and absorb a large amount of radiation heat of the flame and the high temperature flue gas. In addition, the furnace design needs to fully consider the characteristics of the fuel used. Each boiler should be fueled with the original design of the fuel. Boilers running economy and reliability are likely to vary greatly reduced when using the characteristics of fuel combustion.
To increase the pollution control efforts of industrial boilers, Guangdong Province, by focusing on advancing heating, coal gas and other projects, Xinsha Port Zone, Dongguan City, do not meet the emission standards for industrial boilers and chimneys have size "off the shelf"; there are 26 companies mentioned standard complete renovation work, out of a total of 82 sets of industrial boilers, another 16 companies to complete remediation goals before the end of this year.
Paper and other industries 26 key enterprises mentioned standard transformation, out of 82 sets of industrial boiler
Xinsha Port perimeter around the paper, grain, feed processing enterprises, industrial boilers, grain and oil processing, volatile oil and gas, will have some involving VOCs gas. In recent years, nearby residents have been repeatedly complained unpleasant smell in the air.
To this end, the Dongguan municipal government attaches great importance to air pollution problems Xinsha Port Zone, the development of air quality Xinsha Port Zone in December 2018 to enhance the action. The municipal environment department lead, together with territorial ecological environment, urban management, water supply, public security, Food and Drug Administration and other departments to form joint municipal law enforcement inspection teams to go to Area carpet investigation involving air polluters.
Meanwhile, with the third party monitoring techniques to determine the 42 polluters. This 42 companies were included to enhance the focus of regulation directory, according to the state of production and operation of enterprises, the development of personalized remediation timetable and roadmap.
Currently, there are 26 to complete the renovation work mentioned standard, out of a total of 82 sets of industrial boilers. Another 16 companies to complete remediation goals before the end of this year.
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