The Hulun Buir City, Inner Mongolia, due to its special geographical location, well into the cold season, heating boilers put into use. Safe use of district heating boiler equipment, Hulunbeir special inspection carried out the inspection work to ensure the operation of heating boilers for the Evenki Autonomous Banner Dayan Town, tie Nihe mine, Bayan hematoxylin lofty Kong and other regions.
Inspectors checked one by one aspect of the boiler, safety accessories, ancillary equipment, water quality management and data review and so on; and the verification process in all corporate communications using the boiler should pay attention to regulatory knowledge and safety knowledge, urged business executives to issue timely corrective to ensure the safe use of heating boilers.
Common thermal efficiency of gas-fired at about 80% -90%, since the exhaust gas temperature at the boiler more than 100 deg.] C, with a lot of heat loss of exhaust gas, it is a waste. Condensing gas boiler is to improve the thermal efficiency of the boiler by reducing the exhaust gas temperature, flue gas dew point of 55 ℃ -60 ℃, and the main component of natural gas is methane, a large amount of water when burned above the dew point of the gas, If the exhaust gas temperature is reduced to below the dew point, water vapor in the flue gas will be liquefied in the heat, this part can be recycled heat, it again increases the thermal efficiency of the boiler (flue gases into the cooling water will condense boiler corrosion , requires special corrosion-resistant materials). Usually calculated boiler thermal efficiency is used in the low calorific value, i.e. no latent heat in the flue gas condensing boilers while absorbing sensible heat and latent heat in the flue gas, calculated condensing boiler by Equation thermal efficiency reached 100%, the current maximum thermal efficiency of 108.9%.
Xi'an, Baoji, Xianyang, Weinan what type of boiler is better: Recently, Xiao Bian fast boiler discovery, both for counseling or purchases of gas boiler has been a significant improvement in Shaanxi Province, through the depth of excavation , small doubts have been answered. The advent of winter, mostly in Shaanxi around mid-November for heating, reached a peak of use of the boiler. According to China's introduction of the latest air pollutant emission standards, Shaanxi Province has been a significant amount of emission limits for new boilers and boiler construction in nitrogen oxide (referred to as NOx). According to the FIG see, Xi'an, Baoji, Xianyang, Weinan, Tongchuan etc. implement air pollution emissions of less than 30 mg / m (inclusive) for new boilers, boilers for the implementation of less than 80 mg / m ( containing) air pollution emissions.
Atmospheric pressure difference between the boiler and the boiler pressure hot water boiler is 1. pressure equipment, with a risk of explosion. The boiler pressure hot water boiler heating system is not under pressure, always open to the atmosphere so that the boiler will not explode in any case, good safety performance. 2, pressure hot water boiler is full of water, there is no level control problem. Pressure hot water boiler is not full, the water level control problems. 3, pressure hot water boiler to be fitted with a pressure gauge, safety valve and thermometer, because the boiler always is full of water, so no water level gauge. The only pressure hot water boiler water level gauge and thermometer. 4, pressure hot water boiler circulating pump heating system, is sent to the boiler return pumping system, generally used water pump. It has to overcome the resistance of the systemic circulation, but also to maintain a certain pressure boilers, boiler water at high temperature to ensure that no vaporization. The boiler circulating pump water heating system pressure is pumped from the boiler, hot water pump pumps should be, in addition to its role in the resistance against the external system, mainly to overcome the resistance of the backwater control valve. 5, pressure hot water boiler can not only supply low-temperature water, but also to supply high-temperature water. The pressure hot water boiler can only supply low-temperature water is less than 100 degrees Celsius. Boiler operating pressure to atmospheric pressure when the internal pressure equal to or slightly lower than the atmospheric pressure, the pressure in the boiler operation when the internal pressure above atmospheric pressure.
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