methane gas fired high pressure small steam boiler

What if there is wear and tear in the natural gas boiler? Detailed inspection is the key, as is fuel management. According to the operation condition and time of natural gas boiler, we can plan reasonable wear inspection. When using fuel, we strictly control the granularity of coal and limestone. The size of bed material should be strictly controlled. Boiler waste should be disposed of. The waste residue of the boiler must be treated before it can be discharged. Natural gas boilers should be installed where heat is used, easy to install. The hot pipe should not be too long. It should have a good insulation. The pipe shall be tilted properly from the hot water outlet to the end. The water supply source shall be equipped with a control valve. To discharge exhaust gases, the chimney of the natural gas boiler should extend to the outside and the outlet should be 1.5 to 2M higher than that of the boiler. If we want to reduce the influence on the water wall tube, we can adjust the air pressure and air volume properly, and effectively reduce the wear of the water wall. Check time is usually standby or downtime. Items to be examined include wall wear, furnace sealing and smoke leakage. In case of wear and tear, repair and welding are required to ensure the normal operation of methane fired high pressure small steam boiler. Generally speaking, before combustion of natural gas boilers, fossil fuels, fossil fuels and bed and circulating materials should be filled in the combustion chamber at wind speed and strength. And stiffness of the air convection under full integration. Furnace bottom air device, inner core area upward. The movement in the outer ring region flows downwards along the water wall of the furnace, thus prolonging the residence time of the coal particles in the furnace. Mineral particles, a large number of ash powder and smoke contain a large number of fly ash particles, these continue to lead to rapid wear of water-cooled wall tube, make wall thickness wear thin, resulting in wear.

Coal-fired boiler to carry out a comprehensive investigation and remediation work, Luohe City, Henan Province, Li Jizhen provincial, city and town each environmental supervision departments centralized call the relevant personnel, three-pronged approach to work.

First, a comprehensive investigation to find out the base.

Li Jizhen town for all industrial enterprises, restaurants, vermicelli processing plants, farms and other coal-fired boiler with a boiler units diagnostic investigation, the establishment of coal-fired boilers ledger, so base-clear, the situation is clear.

Second, clear standards, conducting pressure.

Town leaders organized the renovation work conference of coal-fired boilers, the boiler so that the user's overall reform and the dismantling of scheduling, the town must be eliminated in the formation of boiler upgrade, you do not need to be removed out of shutting down consensus.

Third, actively coordinate, and assign responsibilities.

Natural gas is being implemented in conjunction with the "double substitution", and actively coordinate the gas boiler equipment suppliers in collaboration with the local gas company, entered into a collaboration, timely completion of "substitution of gas for coal" upgrade tasks.

As of now, the town has shut down six coal-fired boilers, the implementation of "substitution of gas for coal" boiler upgrade eight, effectively promote the prevention and control of air pollution.

What works and characteristics of natural gas boilers are? Gas-fired, the main structure of a shell boiler, furnace, turning smoke chamber, and other components of the smoke tube boiler is suitable for light oil, heavy oil, natural gas, gas and other fuels, the boiler reasonable structure, double-layer anti-burn, facilitate flue gas is fully utilized, and also has a small footprint, easy installation, high steam quality and so on. Works natural gas boilers are: water through the inlet into the boiler, heating boiler after heating meet the water quality standards, into the interior through the radiator circulating pump to heating by radiation and convection heat transfer, water flowing through the radiator, back inside the boiler is heated, and then again into the radiator, so the cycle is carried out. And the system of gas-fired, can also provide hot water to meet their basic needs, the boiler water temperature and the indoor temperature, a temperature sensor after the treatment, the temperature signal is transmitted to the microcontroller, through the corresponding drive circuits to adjust corresponding pipe size valve, and further by controlling the temperature of water, heating to achieve the purpose, the user according to the size of the heating range, select the appropriate circulating pumps, to do so is also more economical and convenient.

2. Oxygen corrosion

For the biomass fuel boiler pressure parts,the water side is mainly electro chemical corrosion,the fire side (or flue gas side) is mainly chemical corrosion.The oxygen corrosion belongs to electrochemical corrosion, it is mainly caused by the dissolved oxygen in water.At room temperature,the dissolved oxygen concentration is about 9.1mg / L,according to the GB1576-2001 “industrial boiler water quality” requirement ,the rated steam pressure should not be more than 1.0MPa,the dissolved oxygen concentration should not be more than 0.1mg / L,otherwise,it is likely to lead to metal corrosion.

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