Recently, Binzhou City, Shandong Province High-tech District Supervisor Bureau to carry out special rectification actions fired boilers hot water plants within the region, mainly to effectively prevent and resolutely curb special equipment accidents from happening again, strengthen security principal responsibility.
Inspectors use of "without warning, went straight to the scene" way of checking for nine boiler units within the region conducted a comprehensive inspection, focusing on aspects of boiler operation, the operator of personal responsibility, troubleshooting, safety test accessories, etc. a comprehensive investigation. Long-term idle boiler, supervise the use of units in time for deactivation procedures; management is not in place, there are security risks of the use of units, ordered deadline to complete the hidden rectification. The campaigns, check out a total of more than 30 people, to identify risks at 8, at the completion of the rectification 8.
Next, Binzhou City High-tech Zone Market Authority will continue to strengthen law enforcement and inspection efforts, compacted layers of responsibility, and strengthen security consciousness, special equipment to protect the region's security situation continues to stabilize, escort for the economic development of high-tech zones.
Maintenance of the fired boilers hot water plant and burner maintenance 1, boiler maintenance and deactivation of backup boiler, should take anti-corrosion measures. 1) maintenance Calorimetry: maintaining the furnace pressure 0.05 ~ 0.09MPa, the water temperature of about 100 deg.] C, to prevent air entering the boiler, this method is suitable within a boiler shutdown week. 2) Wet maintenance: After disabling the boiler, put the water came out, the interior completely remove the dirt and cleaned, refilled been handled well demineralized water, softened water filled boiler. Then adding alkali to the boiler, when added with sodium hydroxide aqueous 5 kg per ton to 6 kg, per ton of sodium carbonate was added if the water 18 kg to 20 kg per ton of water when trisodium phosphate is added 10 kg to 12 kg, maintaining the PH value above 10. The furnace was then heated to 100 deg.] C water, the safety valve is opened, air is discharged in the furnace, and then closed. During maintenance should always check and found that leak that is to be cleared. When the boiler is enabled, it should be drained alkaline solution, and rinse with water, especially when the plot scale boiler must deactivate more clean, because the scale can be soaked in lye and fall off, clog pipes. The method is suitable for longer-term disabled boiler. 2, the burner maintenance: 1) cleaning and maintenance of the burner: Open the combustion head, with a cleaning wipe member or combustion gas, a flame detector wipe with a clean soft cloth, carefully clean the duct and the fan wheel. 2) maintenance of the oil (gas) passage system: Remove fuel (gas) pipeline, cleaning fuel (gas) each filter and nozzle, the drain valve is opened daily oil tank, with exclusion of moisture and impurities in the waste oil. 3) maintenance circuitry: Check whether each wiring is connected firmly assembly is intact and the like.
Boiler ignition How hard? Preparatory work must be done in place! We see, out of sight, the fired boilers hot water plant provides a steady stream of power, supporting all aspects of our daily life and industrial production needs, making great contributions to urban development and social progress of civilization. When you buy the right to their own businesses boiler equipment, how to properly operate the boiler operation becomes very important. In order to ensure the normal operation of the boiler, before ignition must be strictly checked and fully prepared; to do the following seven steps before you can begin to start the ignition. A, check and adjust the water level in the boiler water level adjusting on the display of digital boiler water gauge, when the boiler water level below the normal level required, when the water level above the normal water level will have to open the drain valve timing drainage, the water level reaches a predetermined. The water level should not exceed the normal water line when the boiler for the first time (cold oven) Sheung Shui. This is because the boiler ignition, water boiler thermal expansion is likely to exceed safe water line. Once this happens, the water level should be adjusted by sewage. If the water table level and table column is connected, to check whether the valve opening meter column connected tube. If the water table glass contamination, poor resolution, and must be cleaned or replaced with new equipment. Second, the former boiler blowdown test run, the test should be done on the sewage discharge valve, the valve is fully closed after confirming good, be careful not to have leakage. Third, check the pressure gauge to check the position of the pressure gauge; boiler no pressure gauge pointer should be limited stop limiting, the staple of the staple, the pointer value from zero gauge should not exceed the predetermined allowable error. When the gauge does not meet the requirements should be promptly replaced. Note that the header gauge cock in the open position. Fourth, check the water supply system of water storage tank to check the adequacy of whether the water supply piping and valves open. Manual and automatic water supply for the test, to confirm its good performance, the correct action. Fifth, check the furnace flue damper open ventilation will begin ventilation, have induced draft fan should start induced draft fan for ventilation. If the natural ventilation flue long and winding, ventilation time is generally less than 10 minutes; the wind if mechanical ventilation, generally less than 5 minutes. Six, ventilation equipment inspection and inspection of all fuel grate transmission section condition, to remain intact, normal rotation job. Reserves the liquid fuel tank should be checked, the gas fuel check gas reserves, and while confirming the oil pressure is normal. Fuel lines, filters, fuel pumps, the valve opening and closing the pipeline should be checked to ensure that no exception. Start oil heater, oil maintaining an appropriate temperature. Check the opening and closing of the control valve to meet the requirements. Confirm alarms work properly. Check flame monitor light-receiving surface and protects the lens is clear and transparent. Restrict the chain system is normal. Seven check automatic control device close the power switch, the power indicator confirmed by the control panel is turned on. Check the medium (air) and the fuel line for each valve opening and closing state of the pipeline, which confirmed that no leakage, no abnormal. Check the water level detection device, the specified maximum and minimum water level at the limit, the ability to correctly stop the pump and start pumping. Check the opening and closing of the control valve to meet the requirements. Low water level alarm can confirm correct operation. Check flame monitor light-receiving surface and protects the lens is clear and transparent
How to use gas-fired fired boilers hot water plants can improve the thermal efficiency of the gas boiler is also bad choice will directly affect its thermal efficiency, so we are in the process of buying, be sure to choose good quality. In fact, the factors affecting it improves the thermal efficiency of many, so we regularly thermal conductivity of the gas boiler for cleaning and maintenance, etc., so as to extend its service life. Selection of good thermal and oxidative stability, strong anti-coking. Be careful not to choose odor and color depth of the election furnace. Life with carbon residue, an acid value, flash point, viscosity 4 measure. Make semiannual oil testing, in order to grasp the good quality operation. Identify problems and timely replacement, and find out the reasons and preventive measures in advance deterioration. At the same time it must strictly do not mix different product numbers to use. When used in strict accordance with the rules furnace, to avoid emergency fire heating (temperature rise rate which should be controlled at l0 ~ 40 ℃, h), over-temperature, over-pressure, to take emergency shutdown measures quickly and decisively, always observe the oil level and the oil expansion tank temperature. Such as the lack of oil should be added. Prevent air and water into the oil circulation system. It will accelerate the reaction (the oxidation rate at two-fold increase for each increase in L0 deg.] C temperature) after direct contact with air because of high temperature, high temperature oil to prevent direct contact with air. A better approach is inflated with nitrogen gas to the upper space of the sealed tank. Forming a protective gas layer, sealed under nitrogen unconditionally. To header tank temperature generally does not exceed 60 ℃, header tank is not directly connected in series within the circulatory system. Improve the thermal efficiency of the furnace hot oil boiler, timely removal of the inner wall of the furnace, plate line grime on the walls, in order to ensure good heat transfer, and should use a better quality of gas as far as possible, so that the heat generated by the combustion of coal in time, fully passed to it.
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