dual fuel gas fired hot water boiler
Off state of the oil-fired boiler and approach the customer Q: oil-fired boiler flameout what state? How to determine whether the fuel gas boiler flameout it? Henan A fast boiler Company: Table fuel gas boiler furnace pressure instruction value suddenly increases; the furnace black, can not see the flame hole to see the fire; sound disappears combustion furnace; issued extinguishing the flame monitor signal; temperature, pressure abruptly fall, after the water level decreased and then increased, and so are flameout phenomenon. Auxiliary flame caused by an accident, such as a fan, blower power interruption, there is an accident signal emitted; fuel supply is interrupted as a result, oil-fired boiler fuel pressure is reduced to zero. If only a single burner flame, the furnace may also occur flame center deflected off the burner pressure changes; fuel supply is interrupted as a result, the extinguished burner pressure or hydraulic indication may drop to zero, while the other run burner fuel, gas pressure. After this occurs, must be timely treatment to ensure safe boiler. Customer Q: oil-fired boiler flameout, how can I deal with? Boiler Company Zhoukou City lofty Answer: Once a flameout must immediately cut off the fuel supply to the furnace, close the solenoid valve supply (supply and return oil), and then close the fuel supply valve in each operation of the burner. Operation action to be fast, so as not to continue or resume the supply of fuel, causing a risk of malignancy. At the same time, to identify the cause of the boiler flame, troubleshooting discovered, and then start doing the preparatory work. Before starting, we should strengthen boiler ventilation, purge, purge time is more than 5min, then procedures ignition. When the ignition is prohibited sent directly to the high temperature furnace fuel ignition without using an ignition device, in order to prevent dangerous accidents furnace. If due to fan failure caused when the flame, should quickly close the fuel supply line valves each, paying particular attention to the valve not tightly closed due cause fuel leakage. Meanwhile, according to emergency shutdown processing method for ventilating and purging of the furnace and the flue. After the fan resume operation, then step ignition. If only the burner flame, simply close the fuel supply valve to the burner, off throttle small oil-fired boiler, to identify and troubleshoot, and then re-ignition process the ignition. Be sure to quickly deal with properly in order to ensure the safe operation of the boiler.
After the gas-steam circulation pump approach failed for some time to use gas steam oven, it will produce a precipitate. At this point, we need to clean heat transfer oil furnace, but before cleaning, we need to know what kind of sediment, and then cleaned the right way, if the heat transfer oil, grease appears very easy to make the wall thermal resistance increases, will increase the production of energy, gas steam liquidity will deteriorate, production will be reduced, the operating cycle will shorten the life of the device will be. Shorten, which in turn affect production. Some of the more common gas steam boiler deposits are: sulfate, carbonate, silicon and iron. Acid sulfate does not bubbling, since relatively hard sulfates, carbonates decompose at high temperatures, the bicarbonate will dissolve, but the release of carbon dioxide will form an insoluble carbonate salt. When the temperature reaches 300 ~ 400 ℃, hot oil furnace thermally cracking occurs. It will produce carbon deposits on the inner wall and an inner wall, it affects the heat transfer efficiency. Easy to produce oil furnace heat transfer in high temperature environments. Thermal cracking, thermal polycondensation, and its kinematic viscosity increases, the fluidity deteriorates internal oxidation of the oil pipeline, oil conductive accelerated failure, the machine will be damaged, endanger human will be high. Steam oven gas processing cycle pump failure: (1) When the current is below the normal circulating pump, the circulating pump efficiency is lowered, the flow rate is reduced, the fouling of the heating pipe may be blocked, it should be cleaned. (2) circulating pump pressure constant, the current increases, flow decreases. Bad heat transfer fluid, the viscosity increased, should be replaced or regenerated. If the system does not remove water or aqueous decomposition newly heated conductive liquid should be immediately opened exhaust valve to the exhaust gas. (3) circulating pump current is reduced, the pump outlet pressure back to zero, indicating that the pump is not idle. It may be vaporized oil, gas and steam oven measures to find the cause vaporization; if the filter is clogged, the circulation pump should be evacuated and cleaned immediately opens the bypass filter; if the heating fluid contained in the new water or heated water, the system does not exclude the decomposition gas, the exhaust valves should be opened immediately exhausted.
Boiler water treatment analysis of safety issues: the problem of boiler water treatment is an important part of the process of the safe use of boilers in general we all know that the market is now using more coal-fired steam boiler, steam boiler fuel ratio or gas accounts for a large steam boiler most, especially in the current market share of imports of fuel gas-fired boiler in the market constantly rising, mainly due to fuel gas-fired boiler of compact, small size, high water quality requirements, at the same time, due to the oil and gas combustion temperature itself relatively high, therefore, be able to do is very important for boiler water treatment, boiler water treatment, if done well it will cause boiler fouling, corrosion, which not only wastes fuel and it can lead to blocked pipes, burst pipes and other accidents, and more there will also be scrapped boiler caused severe economic losses ***. Therefore, fuel oil and natural gas boilers must strictly check boiler water treatment problem seriously.
In mid-June, Yingtan City, Jiangxi Province issued a "Yingtan City People's Government Office on the issuance of three-year action plan to win Yingtan City Blue Sky Battle (2018-2020 years)", Yingtan City Market Supervisory Authority proposed by file stringent targets execution, to carry out a three-year coal-fired boiler special work within the city.
The special rectification, on the basis of thorough investigations within the jurisdiction of coal-fired boilers, the high standard, high-efficiency coal-fired boilers to complete the rectification work to ensure that by the end of 2018 as required successfully completed. 10 out of 21 local stations steam tons / hour and coal-fired boilers and started to build the city and out of the city of 35 tons of steam coal-fired boilers of work; involving the transformation of coal-fired boilers, technical testing organizations should strictly follow the relevant safety technical specifications strict technical clearance, and the overdue completion of the rectification of the enterprise be severely punished according to relevant laws and regulations. Coal-fired boilers by special campaigns, effectively reduce pollutant emissions, improve air quality, help Yingtan beautiful building.
Up to now, the council investigation of coal-fired boiler unit 16, a total of 21 Mopai boiler units, 12 units have been removed, and the rest are in the boiler rectification. Next, the council will further strengthen the regulation of coal-fired boiler follow-up supervision, to ensure that regulation effect.