Energy Saving Horizontal Steam Boiler
School project uses hot water boiler which type is better? As China increasingly improve the ecological environment protection, air emissions requirements become more stringent, the boiler must be innovative aspects of the lower row, the major boiler manufacturers have engaged in a more environmentally clean fuel gas boiler market.
Direct contact condensing heat exchanger flue gas purification effect Test: flue gas condensation may reduce harmful substances in exhaust gas, but the purifying effect is affected by many factors. These factors include the amount of condensate, fuel type, temperature heat exchange medium. Studies have found that : NOx flue gas condensation and purification effect of the presence or absence of SO2 in the flue gas related. When no presence of SO2 in the flue gas, flue gas condensation is better purification effect on NOx, the NOx absorption rate generally can reach 10% to 20%; presence of flue gas with a SO2, NOx purification efficiency of the flue gas condensation decreased, the NOx absorption rate is generally 10% or less. SO2 due to the more hydrophilic than NOx, SO2 present in the flue gas there is, the role of SO2 and NOx water inhibits the action of the water, so that the flue gas condensation to reduce the NOx purification effect. For the system shown, the system described herein the exhaust gas temperature is lower than the conventional gas boiler, a greater amount of condensate, which requires purification effect experimental study. Experimental system used in direct contact with the flue gas condensing heat exchanger, the advantages of this approach is that: the contact area greatly increased flue gas two-phase flow of water, instantaneous heat and mass transfer to achieve enhanced heat transfer effect .
To proceed from reality, should be in accordance with the electric power, gas should the gas, the coal should be coal, should be hot the thermal principle, promote the use of all kinds of clean energy for winter heating cleaning. In order to reduce air pollution and protect people's warm winter as a foothold to enterprises, government promotion, residents can withstand the principle of gas after the first change to gas will change in gas assurance, the price is acceptable on the basis of sound promote the "coal to gas" and central heating engineering, in district heating supply pipe network can not cover, vigorously implement the replacement of coal-fired power heating project.
Good job of marketing system storage capacity for natural gas. Accelerate the construction of natural gas transmission and distribution network, the new natural gas volume priority for life and severe winter areas of urban air pollution and coal for heating alternative. In principle, to new natural gas cogeneration and gas chemical projects.
Accelerate agricultural and pastoral areas "coal to electricity," the process of upgrading the power grid. Coordinate development of power transmission project construction, etc. are encouraged to promote the regenerative electric heating. Around on the "coal to electricity" project supporting grid should be given support, coordination "of coal to electricity," "coal to gas" land for construction.
In accordance with national requirements, shutting down environmental protection, energy consumption, safety and other 300,000 kilowatts coal-fired units of non-compliance. For shutting down the unit's capacity, coal consumption and emissions targets, allowed to trade or replacement, can co-ordinate arrangements for building the capacity of ultra-low emission coal-fired units.
According to air quality improvement requirements to accelerate the delineation of high-pollution fuel combustion zone ban and to expand the scope of, and actively promote the elimination of small coal-fired boilers. The county level and above urban area basically eliminated 10 tons of steam per hour and coal-fired boilers and tea furnace, stove and other operating coal-fired facilities, in principle, to 35 tons of steam per hour, the new coal-fired boilers, in principle, other areas on no new 10 tons of steam per hour of coal-fired boilers. While banned out of coal-fired boilers, pressure boilers market regulators cancellation of registration certificate to use.
Industrial gas condensing boiler works and the core technology of industrial gas condensing boiler, by definition, it is a condensing gas boiler. Currently, condensing gas boiler can be divided into commercial gas condensing boiler and condensing gas boiler industry. Products are also different from the horizontal condensing boiler and condensing boiler vertical. The most important is to realize the nature of condensing boilers condensing technology. The key industrial condensing gas boiler condensing boiler key point is to use the condensing technology, which is a relatively new type of energy-saving and environmental protection technology. In fact, the principle is not complicated, the simple conclusion is that to recover the heat energy of the flue gas through the flue gas condensation. In general, the traditional boiler thermal efficiency of only 85% or 91%. The exhaust gas boiler condenser temperature was lowered to 35-60 ℃, full recovery of latent heat and sensible heat in the flue gas water vapor. Maximum thermal efficiency of up to 108.9%. Industrial works condensing gas boiler works condensation gas boiler is the hot flue gas discharged from the combustion boiler (typically from about 140 deg.] C) recovering the energy, the temperature of the exhaust gas after recovering only about 60 ℃. Thus, the thermal efficiency is improved about 10%, about 10% gas savings. Meanwhile, in the process of energy recovery, it is also possible to reduce harmful emissions, reduce environmental pollution.