7 mw central heating boiler

Hazard radius of 7 mw central heating boiler explosion how

During the Chinese New Year this year, Harbin City, Heilongjiang Province, Zhangjiakou City, Hebei Province due to boiler problems are a heavy accident occurred, whether it is personal security or the economy, have caused serious damage.

Boiler equipment belongs to special, complicated structure design, operating environment is more severe, during use, is often influenced by temperature and pressure stresses and alternating. If long-term use down, inspection and maintenance neglect 7 mw central heating boilers, boiler operation will likely cause reduced efficiency and security risks. Once accidents, often fatal. But many companies and personal security awareness is not strong, it is still a long time to run the boiler inspection, inability to control the operation of the law of the boiler, there is a big security risk.

Recently, Gaoyou City, Jiangsu Province for coal-fired boilers Market Authority has embarked on a comprehensive inspection operations, according to "comprehensive coverage, thorough investigation, replicability, results-oriented" principle, the use of coal-fired boiler business diagnostic investigation, and effectively eliminate security risks.

City Supervisor Bureau focus on verification of the actual use of coal-fired boiler units, using the address, use, heating, technical parameters, test status, filing one by one, do on-site inspection records strict accordance with relevant provisions, retained image data. To phase out coal-fired boilers to be found in the inspection, and urge the relevant units to implement the safety responsibility, and return in time for retirement procedures using the registration certificate. So far, the council has issued eight safety supervision instructions to complete the verification of the use of 14 units of 45 coal-fired boilers and filing, of which three units have been deregistered 15 piece of equipment.

What is the reason of galvanizing oil-fired gas 7 mw central heating boiler?What is the reason of galvanizing oil-fired gas boiler? The burner of oil-fired gas-fired boiler is the key component of the boiler. It is very important to select the type of burner and whether the boiler is fit, and the control and regulation of combustion are very important. The function of the burner is to organize the good combustion of fuel equipment. Therefore, the fuel should be atomized into fine particles and the oxygen needed for fuel combustion should be supplied at the same time. Therefore, the burner consists of two parts: the fuel supply equipment and the oxygen supply equipment. The computer control system is another main component of the oil-gas boiler, which is equivalent to the brain of the human body, to achieve the uploading of all kinds of commands. If used properly, there are few hardware problems. The furnace body is subjected to high temperature drying The intermediate of baking, transferring heat and producing the necessary heat medium, its working condition is bad, its output is large, its quality determines the length of the whole boiler's life, the material chosen should have greater corrosion resistance and better tensile strength. And good thermal conductivity. More customers will require galvanizing treatment on the furnace body, which will have the following advantages. Zinc is a very active metal that is extremely easy to oxidize, but zinc oxide is not a loose powder like iron oxide, but a dense surface layer. This layer of zinc oxide prevents further oxidation of zinc inside. When the surface of galvanized steel sheet is damaged, dew When it comes to the internal surface of iron, zinc is more active than iron, so according to chemical battery principles, zinc is oxidized prior to iron, thus protecting the iron layer from damage. Therefore, the service life of galvanized boiler will be extended. Secondly, it can prevent the boiler from producing yellow water and affect the water quality. Boiler in the factory pressure test, testing the welding quality of the boiler, in this process there will be part of the residual moisture, the internal relatively wet, will have a slight oxidation. If used in areas of slightly poor water quality, a layer of scale will be attached to the wall of the furnace and pipe wall during use, and the rusty part of the original steel plate will be covered, so there will be no yellow water, if the water quality is less than that of the water. Good area use, in the process of boiler use will not produce scale, the original steel plate rust will not be covered, so yellow water will be generated. There are two sides to the existence of things. Where the quality of water is good, the life of the boiler is much longer than that of the area where the quality of the water is worse than that of the area where the water does not produce yellow water.

Design requirements for flue of fuel gas 7 mw central heating boiler roomThe flue should be straight, airtight, less accessories and less resistance, horizontal flue should be laid to maintain more than 1% of the head-up arrangement, as far as possible to avoid the layout along the slope. 2. The flue and chimney of the fuel gas boiler room shall be constructed of steel or reinforced concrete, and the lowest point of the flue and chimney shall be provided with water sealed air and water drainage pipes. 3. The steel plate thickness of metal flue is generally 4-6 mm. When designing the flue, it should be equipped with sufficient reinforcement ribs to ensure the strength and stiffness requirements. 4. The thermal expansion of the flue should be compensated, the compensation amount should be calculated and the correct selection should be made. 5. Heat preservation measures and reliability of steel flue The fixation of the. 6. A boiler corresponding to a chimney should be used in a fuel-fired boiler room. When several boilers are required to share a flue or chimney, the ventilation and suction force of each boiler should be balanced. 7. The necessary thermal and environmental measurement points should be installed in the proper location when the flue is arranged. A single oil-fired boiler with a rated evaporation capacity greater than or equal to 20t/h or a single rated thermal power greater than or equal to 14MW must be fitted with a fixed instrument for continuous monitoring of smoke and SO2 emission concentrations in flue gas. 8. Where smoke easily gathers, and when multiple boilers share a chimney or a total flue, each fuel gas Explosion-proof doors shall be installed on the flue after the boiler, and the position of the explosion-proof doors shall be conducive to pressure relief, and shall be located in a proper position not to endanger the safety of personnel and before turning, when the explosion gas may endanger the safety of the operator. Pressure relief guide tubes should be installed on the explosion-proof device. 9. For some boiler rooms with long flue, the resistance should be calculated and the corresponding blower and induced fan (when there are induced fans) should be selected in order to ensure the smokeless flow. 10. The chimney should consider the corresponding anti-corrosion measures, the flue gas temperature at the outlet of the chimney should be 15 ℃ higher than the dew point temperature of the flue gas, and when the exhaust temperature is lower than the dew point temperature of the flue gas, effective measures should be taken to prevent it. The smoke is poured upside down.

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