wns horizontal oil gas fired steam boiler
The need for paper industry paper industry conversion of coal-fired boilers to gas boiler is a boiler equipment industry needs is more important, because a lot of links to the papermaking process requires a lot of steam drying, stereotypes and so on. However, along with the national policy of environmental protection departments to ban coal-fired boilers, and now more and more manufacturers have to use coal-fired boilers to coal-fired boilers upgrading or purchasing a new low - NOx emissions. Paper mill boilers from coal to gas fired boiler is an important direction of current reform, is one more type of enterprise transformation, especially in the area more natural gas, coal into gas boiler is the main way. 1, in order to transform mechanization layered fired boiler gas boiler, you should first remove the front arch and a rear arch, while increasing the bottom heating surface, instead grate, grate to prevent overheating, combustion; 2, through the furnace heat transfer calculation methods determining the size of the boiler, furnace flame center position, and then pouring furnace work. In order to avoid the center position after arch boiler tubes, based on the original slope of the original arch made pipe. 3, the furnace in order to prevent an explosion, when the coal-fired boiler furnace gas is substituted, or when fuel not atomized combustion gases in the furnace incomplete combustion or heating surface of the end of the furnace, a fire or explosion occurs, should be mounting the appropriate parts of the boiler explosion vent, and to increase the ignition and flame failure protection program control to automatic control means, to ensure safe operation of the boiler. 4, is closely related to the selection and arrangement of the burner and furnace, the filling degree of the flame in the furnace should preferably not to form a dead air. Gas burner arrangement considered reasonable and piping layout, easy operation, maintenance and inspection.
How to observe whether wns horizontal oil fired steam boiler is short of water and how to deal with itSteam boiler is a kind of energy conversion equipment. The energy input to the boiler is chemical energy in fuel, electric energy, heat energy of high temperature flue gas and so on. After boiler conversion, steam, high temperature water or organic heat carrier with certain heat energy is outputted out. Water level below the minimum safe water level, or invisible water level, water table glass tube (plate) appears white. The two-color water level meter shows all the gas-phase indication colors. Low water level alarm signals occur in high and low water level alarms. Low water level interlock device, water level below the specified value should stop the operation of fan, induced fan, grate reducer motor. There is also a sharp rise in superheater steam temperature above the normal outlet Steam temperature. The exhaust temperature of the boiler rises. The feed water flow rate is smaller than the steam flow rate, if the furnace tube or coal economizer tube rupture cause water shortage, the opposite phenomenon will occur. When the water shortage is serious, you can smell the scorching smell. When water shortage is serious, red water wall tube can be seen from the furnace door. When the water shortage is severe, the furnace tube may break, and a burst can be heard, steam and smoke will be ejected from the furnace door and the fire door. By calling water; for severe water shortage, it is necessary to stop the furnace urgently, and blindly feed water to the boiler. Reduce fuel, blast, draw wind, and supply water slowly when water is classified as a slight water shortage.
Why hot water boiler heating more energy efficient, more environmentally friendly: generally used for heating hot water boilers, but the need to use less steam production process. Biomass boiler categories: biomass boilers Horizontal, vertical biomass boilers. Biomass gas thermal oil heaters, biomass wns horizontal oil fired steam boiler, biomass hot water boiler, biomass oil furnace. Steam boiler is an energy conversion device, the energy input to the boiler fuel chemical energy, electrical energy, thermal energy and other forms of high temperature flue gas, and after converting the boiler, the steam output having a certain outside thermal energy, high-temperature hot water or an organic carrier. Because it is more energy efficient than steam boiler, more environmentally friendly. First of all, in terms of fuel consumption, hot water heating than the steam boiler heating savings of 20% to 40% of fuel, this amount is very impressive. Summed up for two reasons: First, it does not condensate and heat loss due to evaporation of the secondary, two hot water heating pipe is heated by the use of special materials, as thin as possible to meet pipeline needs, heat loss is small. Heat loss due to the steam heating pipe caused by steam leakage large.
In mid-April, Hohhot, Inner Mongolia issued a notice (hereinafter referred to as the "Program"), "Hohhot tackling air pollution control plan" (2018-2020), the "plan" to win tough fight pollution prevention, to promote air pollution control, as the city to create a pleasant living environment for the development of the measures.
For air pollution control, "plan" set goals. As of 2020, Hohhot air quality more than two days ratio reached 83.8%, fine particles (of PM2.5) concentration of 35 micrograms / cubic meter. Wherein, 2018 Hohhot air quality objectives: good percentage of days to reach 79.5%, fine particles (of PM2.5) concentration of 39.2 micrograms / cubic meter.
Since 2017 to enter the heating season, Hohhot is the air quality continues to improve, has introduced the autumn and winter air pollution in Hohhot comprehensive reform program "," Hohhot 2017--2018 autumn and winter special inspection of comprehensive air pollution control program of work of law enforcement. " "Hohhot 2017--2018 autumn and winter air pollution in the comprehensive management of supervision and inspection plan", "Hohhot environmental Protection Agency checks on the issuance of the work program of the winter heating enterprises notification", "Hohhot City people's government on the issuance of residential heating clean alternative , "and other series of notifications. Key measures to coal-fired boilers for heating and bulk coal governance.
Second, the city's coal-fired boiler coal yard, residue field to achieve full closure transformation; more than 20 tons of steam / h coal-fired boilers have been installed pollution-line monitoring equipment, and networking with the Municipal Environmental Protection Bureau, established a 24-hour monitoring system.
Through the above measures, Hohhot air quality improved significantly compared to the same period. January 1, 2018 --3 17, good days Hohhot total 66 days, an increase of 4 days last year. Sulfur dioxide concentrations decreased 40.7% over last year, PM2.5 concentration decreased by 20% over the same period last year.
According to (2018-2020) spiritual requirements "Hohhot tackling air pollution control plan", 2018, the Board will eliminate 35 tons of steam utility / h coal-fired boiler room 11 - 15, involves heating an area of 3.872 million square meters. Currently the demolition and integration of clean energy and the transformation is complete, out of the task have been put in place, we have been completed out of eight coal-fired boilers and boiler room of the grid work, removal of nine coal-fired boilers (grid yet dismantled three, to electricity yet dismantled three), and has been able to "break two three clear", the remaining boilers will be completed by the end eliminated.