Recently, Guangdong Province issued a "Boiler Air Pollutants Emission Standards" (DB44 / 765-2019) (hereinafter referred to as the "standard").
A "standard" in the context of the implementation province domain for coal, oil, 65 tons of steam per hour and the material forming steam boiler burning fuel gas and raw, hot water boilers of various capacities and organic heat carrier boiler; stoker of various capacities, stoker furnace.
Second, the implementation of the emission limits of air pollutants specified in Table 1 of the boiler since July 1, 2019, since 2020 July 1 implementation of air pollutant emission limits specified in Table 2.
Third, the new boiler since April 1, 2019 (the date of the present embodiment standard) executed from air pollutants emission limits specified in Table 2.
Fourth, not the implementation of clean energy transformation of 35 tons of steam per hour and higher coal-fired boiler from January 1, 2021, implementation of the provisions of air pollutants emission limits in Table 3 in particular.
With the increasing development of the domestic economy and the continuous improvement of the people's living standards, energy consumption is increasing day by day, environmental pollution is deteriorating day by day, and people's awareness of environmental protection is constantly strengthening, as well as calls for improving the environment, Urges the government to step up efforts to guide the energy consumption structure to clean and energy-saving energy transition with mandatory policies. Affected by the above factors, fuel oil, as an efficient and clean energy source, is more and more favored by enterprises. In view of the rapid explosion of fuel used in fuel-fired boilers and the variability of load, the oil-fired furnace should be automatically controlled. The main task of automatic control of oil-fired boiler is to maintain the water level, temperature, pressure and smoke of the boiler. The physical parameters, such as oxygen content of gas, are within the prescribed range and can automatically adapt to the change of load, thus making the boiler run safely, reliably and economically.
WNS series of horizontal three-pass fire tube boiler combustion WNS series of horizontal three-pass fire tube boiler combustion wns three horizontal boiler return main contents are as follows: 1) the flue gas flow arrangement of three recirculation zone, wet-back structure is completely welded, wavy hearth tube, the convection zone and optimized combination of light pipe threaded pipe, long flue gas flow, heat transfer effect. 2) the use of advanced burner with domestic burners, burner and abroad can be. The burner advanced technology perfect, fast start and stop speed, less fuel consumption, high thermal efficiency, soot and NOx emissions can reach the national standard. 3) equipped automatic control devices, to achieve water level of boiler operating pressure and combustion automatic control and protection to ensure the safe and stable operation of the boiler. 4) boiler with modular quick installation structure, compact layout reasonable, light weight, small footprint, simple and quick installation, easy maintenance. 5) Complete auxiliary boiler, in addition to the additional burner, control cabinet, chimney, according to the needs of the user can configure and assist the engine oil system. 6) According to user requirements, the boiler using the fuel such as light oil, heavy oil or diesel oil, can also be used a variety of gases, such as natural gas, synthetic gas, LPG, methane cleaning. Two fuels may be used interchangeably, or both fuels. Different burners can be configured according to different requirements.
Oil-fired boilers are more convenient than traditional boilers in environmental protection, but their fire protection system is indispensable because of the particularity of oil, and its fire protection is mainly as follows:
1. There should be a reliable anti-static and safe grounding device in oil tank area and discharge pipeline, and the grounding resistance value (less than 0.5 ohms) should be tested regularly. 2. It is forbidden to store combustible materials in oil area and temporary buildings which are easy to catch fire should be dismantled in time. 3, it is prohibited to do welding work in the running or off-standby state of the oil pipeline. When welding must be carried out on an oil pipeline, before welding, the oil pipe that needs to be welded must be disconnected from the oil system in operation or standstill status (such as removing the welded oil pipeline or home plug) and then flushing the pipeline, Ensure that its interior is oil-free, oil and gas to prevent welding operations are oil and gas deflagration . 4. When open fire operation in oil area, must handle fire work ticket, and should be reliable safety measures. 5. We must strictly implement the oil zone management system. The foam fire fighting system and fire extinguishing equipment of the oil system of the oil fired boiler must be inspected and tested regularly according to the regulations. 7. Hose for fuel system should be periodically checked for replacement. To prevent fuel leakage due to hose aging. If oil leakage is found in insulation material during maintenance, oil leakage point should be eliminated and heat preservation material should be replaced. 9. Monitor the oil temperature of the oil tank. If the oil temperature exceeds 50 ℃, the spray water should be put into the oil tank. That's all the fuel. Boiler fire code, I hope everyone for their own safety please strictly abide by.(119) Preparedness of fuel-fired boilers before ignition
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