Hot water boiler in the school dormitory and classroom building are generally used for central heating, drinking water and bathing water aspects of teachers and students and so on. Shanxi Linxian County high school is an important educational school personnel training for the community. 2017, the school responded positively to national coal to gas and other environmental policies, but also to provide students with a more favorable living and learning environment, the school decided to phase out conventional coal-fired boilers, clean and environmentally friendly replacement for the gas boiler. After getting to know and choose the boiler industry, major companies, determined cooperation with professional production of clean fuel boiler fast boiler-by-side to provide a fast 4.2MW integrated condensing gas hot water boiler (WNS4.2-1.0 / 115 / 70-YQ).
The scaling of gas-fired wns series oil steam boiler not only reduces the thermal efficiency of the boiler, but also increases the temperature of the heating surface of the boiler, causes damage to the heating surface, and even causes the explosion accident of the boiler. Therefore, the use of soft water treatment equipment, strictly according to the process operation of boiler feed water softening treatment equipment, control boiler feed water quality, can delay the formation of the scale. At the same time, it is very important to control the boiler scale in real time, master the boiler scale and clean the scale if necessary. Because the temperature of the gas-steam boiler body and the steam-water heat pipe system is higher than the air temperature in the boiler room, some of the heat is emitted through radiation and convection into the surrounding air. This becomes a loss of heat. Boiler Therefore, the heat loss should be reduced when the heat insulation and heat pipe system of the boiler are damaged or leakage is discovered. The increase in noise from gas-fired steam boiler burners is mainly due to the closure of the valve or insufficient oil intake in the oil path, blockage of the oil filter, or because of low inlet temperature, high viscosity or oil on the pump. Too high temperature; oil pump failure; fan motor bearing damage; due to dirty turbine impeller, the equipment is too loud. This failure occurs when a gas-fired boiler is in use and is not easy to atomize (heavy oil) because of the high viscosity of the oil; it is also due to cyclone and jet The distance between the nozzles is inappropriate; in addition, because the burner is worn or dirty; it is also due to the excessive heating temperature of the spare fuel tank, resulting in steam pumping the oil pump out of the oil pump; or because the oil in the oil boiler is hydrated. Gas steam boiler feed water contains a variety of impurities and calcium, magnesium and other scaling substances, the boiler will inevitably expand. The thermal conductivity of the scale is very low, so once the surface is polluted by the hot surface, the exhaust temperature of the boiler will increase, and the heat loss of the exhaust gas will increase due to the increase of the thermal resistance. The experimental data show that the heat loss of waste gas will be increased by about 2%-4% when 1mm oxide is formed on the heating surface of boiler. The thicker the scale on the heating surface of the boiler, the greater the thermal resistance, and the lower the thermal efficiency of the boiler.
Fuel gas-fired boiler fuel gas-fired boiler product presentation is different from coal-fired boilers, which requires the use of a burner fuel is injected into the boiler furnace using a combustion chamber without the use of fire grate facilities. Because not produce fuel ash after burning fuel gas-fired boiler, fuel gas-fired boiler so without slagging facilities. Oil injected into the furnace, if the gas and air mixture within a certain range, or turned off, it is easy to explode. Therefore, fuel gas-fired boiler combustion required to adopt automation and control systems. Fuel gas boiler compact, small boiler and ventilation, water supply, control and auxiliary equipment are arranged on a distribution box, it may also be assembled and medium-sized factory. Fuel gas-fired boiler safety valve installation points introduce fuel gas-fired boiler safety valve needs to be installed in the correct installation steps, in order to avoid mistakes, resulting in what needs to pay attention to danger, fuel gas-fired boiler safety valve installed it? Here, I introduce: 1 fuel gas boiler safety valve should prevent the lever means and movement of the self-weight limit leverage deviant guide tube, a spring safety valve should lift and handle means for preventing movement of the adjustment screw is screwed lightly . 2. Rated to 0.5t h evaporation boiler fuel gas /, at least two safety valves installed; Rated evaporation 0.5t h or less fuel gas boiler /, mounted on at least a safety valve. The separable exit of the economizer, steam superheater outlet of the safety valve must be installed. 3. Fuel gas-fired boiler safety valve to the boiler tubes, cross-sectional area should not be less than the import safety valve cross-sectional area. If several valves installed together with a short tube directly connected to the drum, short tube passage area not less than 1.25 times the area of all the exhaust valve. 4. Fuel gas boiler safety valve should be installed vertically in the boiler drum, header high position. Between the valve and the drum or header, not equipped with access to the steam outlet pipe and the valve. 5. For rated steam pressure less than or equal to 3.82MPa boiler safety valve throat diameter of not less than 25mm; the rated steam pressure is greater than 3.82MPa boiler safety valve throat diameter of not less than 20mm. 6. Fuel gas-fired boiler safety valve should normally be installed exhaust pipe, exhaust pipe should be through a safe place, and there is sufficient cross-sectional area to ensure the smooth flow of exhaust. Safety valve exhaust pipe at the bottom should be fitted to the safe location of drainage pipe, the exhaust pipe and drainage pipe not allow the installation of the valve.
Gas and coal-fired wns series oil steam boiler steam boiler compare what are the advantages of (1) from the traditional economic point of view and our energy structure, coal-fired boilers due to the low one-time investment costs of popular people favored, especially in the rich coal resources , green area less demanding people prefer to select it. But in resource-poor coal, coal prices are not low areas of oil, gas and coal compared to a certain competitiveness. Another reason people like coal stove is easy to operate. But coal-fired boiler pollution: waste, emissions, waste water, "three wastes" and taste, governance Yijiao difficult (especially desulfurization, coal-fired boiler desulfurization technology currently has achieved some results, but the high investment costs, complex operation, covers an area of large), from the social perspective should limit the use of coal-fired boilers. Soot emissions (2) oil-fired boilers, although lower, but its emissions of harmful NOX, SOX gases are causing "photochemical smog" and acid rain culprit, you want to be like governance as coal-fired boiler soot emissions control. (3) gas boiler has a small footprint, less pollution emissions advantages, but also the cost of the boiler room is not set up, the use of natural gas fuel prices, operating costs lower than oil-fired boiler. (4) not only set in three furnaces comparison, gas boiler lower costs and operating costs, and its social benefits are incomparable. Natural gas is the cleanest fuel, is the least polluting fuel emissions, gas-fired boilers will be the development trend of boiler final.
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2019-10-29 · Wns series gas-fired(oil-fired) steam boiler is a boiler shell type 3 passes wetback oil/gas fired boiler. After fuel is being atomized by burner, flame is full of the wave furnace and transfer heat via furnace wall, this is 1st pass; the high temperature smoke is collected in reversal chamber and then enters 2nd pass which is grooved tubesGet a Quote
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2020-6-1 · Boiler: Steam boiler, hot water boiler, thermal oil boiler Capacity: 0.1t/h-50t/h; 100kw-35000kw; 10hp-3000hp Aavailable fuel: Natural gas, lpg, oil, diesel, heavy oil, exhaust gas, dual fuel WNS series Gas-fired (Oil-fired) boilers are horizontal wet back fire-tube boilers with three pass design. It use threaded flue tube for heat transfer and manages to achieve thermal efficiency up to 98%.Get a Quote
2020-3-27 · WNS Series Oil Gas Fire Tube Steam Boiler-----WNS Series steam boiler is a kind of high thermal efficiency (98%) boiler with the full automatic control system. It is three-return packaged fired tube steam boiler with wet back structure. Compared wGet a Quote
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2019-11-28 · WNS series gas and oil fired boiler is the sub-project of high efficiency (up to 95% thermal efficiency) and eco-friendly boiler under the World Banks GEF Program. Each technical indicator of boiler parts can be advanced in world. This is a kind of fast-assembly installation boiler which consists of boiler proper, interconnecting flue, burner, steam & water system, economizer, etc.Get a Quote
2020-3-18 · wns boiler - kuurnsezichten.be. wns hot water boiler Steam Boiler In India. Steam boiler, electric heating steam boilers, hot water 2018-10-24 · Sitong boiler manufacture and export variety industrial boilers, various fuels can be fired, coal biomass oil gas steam and hot water boilers, thermal oil boiler and electric steam boiler are innovative designed.WUXI BOILER CO.,LTD-steam boilerGet a Quote
2018-10-19 · 0.5-20ton Oil&Gas Fired Steam Boiler with pressure 0.7mpa-2.5mpa(7bar-25bar)) WNS Series Oil&Gas Fired Hot Water Boiler 1ton-6ton oil gasGet a Quote
2020-3-14 · WNS series 13 bar pressure 1-10 ton gas fired steam boiler for food industry. 28 / Mar . WNS series 13 bar pressure 1 ton 2 ton 4 ton 6 ton 8 ton 10 ton gas fired steam boiler for food industry Henan yuanda boiler equipment co., LTD., specializing in the production of boiler, gas boiler and oil-fired boiler, coal boiler, biomass boiler, richGet a Quote
2020-3-14 · The Gas/Oil Fired Steam Boiler can be used for the following business:Chemical plant,Textile plant,Food & Beverage,Garment manufacturing,Paper Plant,Printing and dyeing mill,Cement Plant,Fertilizer plant,Feed mills,Rubber factory.Schools,Hotel,Bath Center,Swimming Pool,Hospital,Hotel,etc.Get a Quote
2014-7-9 · WNS Oil and Gas Steam Boiler Product Range Offerings Rated Steam Pressure (MPa) 1.0 1.25 1.6 Rated Steam Capacity [t/h] Saturation 1 2 4 6 8 10 15 20 Other capacities and pressures can be supplied on demand.Get a Quote
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