best small gas fired steam boiler

Gas boiler which has few parts of the main gas boiler: the enclosed pipe chimney pipe tube sheet base gas outlet steam dryer Confining the majority of the peripheral tubes to form a complete gas boiler. The main effect of gas boiler: the combustion of the fuel is heated by the feedwater temperature and the exothermic heat of the flue gas with a heated surface, so that a final water into superheated steam having a quality of qualified certain parameters. The water in the boiler to go through preheating, evaporation, overheating in three stages in order to become superheated steam. In fact, in order to improve the efficiency of the steam power cycle, there is a fourth stage, i.e. re-superheating stage, soon after the high pressure turbine expansion work to reduce the pressure and temperature of the steam back to the boiler is heated and then sent to the low pressure turbine cylinder continues to work. In order to meet these four phases change, the boiler must be arranged in the respective heating surface, i.e. the economizer, water wall, superheater and reheater. Superheater and reheater disposed in an upper horizontal flue backpass and functions of the fuel system is to ensure the desired fuel burner. The fuel oil burner system are: tubing and fittings, pumps, solenoid valves, nozzles, heavy oil preheater. The gas burner mainly a filter, pressure regulator, solenoid valve, and then firing solenoid valve, the fuel valve. Economizer disposed in the lower back pass. In order to utilize flue gas heat of heated air required for combustion, usually air preheater arranged after the economizer. Some additional preheating large boiler superheater heating surface or in the furnace, and then heat-receiving surface.

Since the beginning of 2017, Qingdao City, Shandong Province to carry out the transformation of governance coal-fired boiler, as of today, has a total payment of coal-fired boiler exhaust gas treatment and transformation subsidies of 240 million yuan in 2014 to 2016 for the sum of the total grant funds, the city this year We will continue to invest 350 million yuan for the renovation subsidy ultra-low emission coal-fired boilers.

Statistics show that January-October 2017, Qingdao City, "blue sky, starry" increased by 16 days the number of days year on year, totaling 289 days, accounting for more than 95% of the total number of days throughout the year, fine particulate matter (PM2.5), respirable The average concentration of particulate matter (PM10) reached 35 micrograms / cubic meter, 70 micrograms / cubic meter, an improvement of 16.7%, 14.6%, the highest in the province for the past five years, the highest level in the same period, the air quality in the first half to get the provincial government incentive funds 16.77 million yuan.

2014-2016, municipal finance coal-fired boilers and efficient treatment and transformation project grants 230 million yuan, began to be 100,000 yuan subsidy per ton of steam coal-fired boiler exhaust governance 2016 (Note: in 2016 began to carry out boiler subsidies, continues to the present is still the case).

Corner tube best small fired steam boiler is one type of chain grate steam boiler. ZG manufactured corner tube biomass fired steam boiler’s power is among 6 to 15 MW. This biomass fired steam boiler adopts corner tube pattern, self-supporting structure. The furnace and the descending fuel gas duct adopts total welding membrane water cool tubes wall structure, which has benefits of good sealing, lower heat reducing. Both air pre-heater and economizer adopt case pattern structure which is convenient to transport and install. As a top steam boiler manufacturer in China, our single drum corner tube biomass fired steam boiler made in China is both eco-friendly and high efficiency.

Boiler precipitator technical principles of environmental protection and the development trend in recent years, the rapid development of gas power plant boiler in the direction of large-capacity, high-parameter, either manufacturing or operations management have been close to the advanced level. Boiler and gas industry to maintain large, widely distributed, high energy consumption, heavy pollution, energy efficiency and pollution control the overall level compared with foreign countries have a certain gap, a huge energy saving potential. By the end of 2012, China's use of gas in industrial boilers 467 000 units, with a total capacity of 1.78 million tons of steam, the annual consumption of about 700 million tons of coal, accounting for over 18% of the country's total coal consumption. China's gas lower overall energy efficiency of industrial boilers, about 15 percent of its actual operating efficiency lower than the international advanced level, with great potential for energy savings. In recent years the rapid development of technology the dust bag, in particular accessory bag filter (dust bag, dust bag cage pulse valve, control of the PLC technology, etc.) to improve quickly, while baghouse 10% desulfurization efficiency can be improved It is dry boiler flue gas desulfurization one of the major thermal power plant equipment. Boiler precipitator dust is the most effective pollution control equipment. It has a high dust removal efficiency, after the flue gas-containing filter baghouse dust concentrations below 50mg / m3, even at 10mg / m3 or less, and can efficiently remove the fine dust particles. Boiler boiler precipitator not just in the production of which use can also be used in other fields of thermal power. During use of the boiler generating the flue gas and dust is inevitable, the boiler boiler precipitator dust is separated out from the flue gas, thus reducing the dust pollution and facilitate further flue gas desulfurization, denitrification process. Spark arrestor smoke dust is mainly used in some high temperature and flue gas containing process Mars. For example, the flue gas cupola, intermediate frequency furnace flue gas, a furnace flue gas and so on. The main role is to eliminate smoke sparks, to avoid burning dust bag. Spark arrestor has a variety of structural forms, cyclone, louvered like. The most effective way of collecting cyclone is, the guide vanes guide the flue gas using a cyclone-type rotational flow, after the dust and large particles Mars cylindrical guide vane duct wall collision or off. When the smelting furnace flue gas containing spark large particles, dust bag will cause damage. Mars trap can effectively trap particles Mars in the flue gas, the protection of the bag filter. The entire device by the PLC control unit, automatic cleaning, discharging and automatic temperature control and over-temperature announcer.

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