Recently, the Government Office of Hebei Province issued the "Hebei province coal investment projects coal alternative management approach", mainly to strengthen air pollution control, the implementation of total coal consumption control target. The new "management approach" referred to new construction, renovation, expansion project of coal, coal should carry out the same amount of reduction or substitution (hereinafter referred to as a substitute for coal). Coal substitute coal should be completed before the project goes into operation.
These measures apply to administrative areas in Hebei coal for direct consumption of fixed asset investment projects. It refers to the direct consumption of coal raw coal, washed coal, other coal washing, coal slurry, coal, coal and other raw materials or fuels production and processing or combustion, its coal facilities (facilities, tools) including boilers, furnaces , gasification, blast furnace and so on.
Coal alternative pathway includes the following four aspects: the elimination of backward production capacity, excess capacity and Yajian enterprises closed down, converting reduce coal consumption; the implementation of central heating, reduce coal consumption saving technological transformation or removal of equipment out of coal-fired boilers and other equipment coal consumption; use of renewable energy, natural gas, electricity and other clean energy alternative to coal consumption; the other to meet the requirements of coal consumption reduction approach. Replacement of coal coal project supervision and management, energy conservation authorities responsible for co-ordination at all levels.
Problematic fired boiler industry discount (1) Henan small boiler gas boiler should be noted, by the Henan coal into gas boiler, i.e. the original becomes a negative pressure is now slightly positive pressure combustion burner, the furnace must be noted that the structure and the sealing wall problem; (2) prevent explosion of the furnace, a gas fired boiler furnace to Henan, when defective or incomplete combustion of fuel atomization gas in the furnace or heating surface of the end aggregate, fire or explosion occurs, and therefore, in appropriate sites shall boiler explosion vent means, while the control program should be added to the ignition and flame protection device of automatic control, to ensure safe operation of the boiler; (3) the selection and arrangement of the burner close to the furnace in the form of, should the flame in the furnace better fullness without forming dead air; adjacent flame of the burner to avoid mutual interference; low load flame holding in the furnace central position, offset from the center of the furnace to avoid the flame center of symmetry; unburned gas-air mixture is not in contact with the heated surface , to avoid the formation of incomplete combustion gases; hot flame to avoid high-speed heating surface erosion, in order to avoid excessive heating surface so that the wall strength of overheating. Burner arrangement also consider the gas pipe and duct arrangement, easy to operate, inspection and maintenance; (4) Mechanized layered coal-fired boiler, gas boiler to change Henan, first removing its longitudinal arch, taking into account the increase in the bottom heating surface to replace the grate, grate to prevent overheating burn; (5) gas velocity Henan convection heating surface is not limited by the gas boiler ash abrasion conditions, gas velocity can be increased properly, so the convection heat transfer heating surface coefficient increases, without increasing the heating surface of the boiler, can increase the pressure of the boiler, steam-water separation capability should be noted that at this time means the pot to ensure the quality of steam, hot air for the boiler had particularly important.
Boiler then its on concrete steps are as follows: First, look at the boiler industry discount is oil or gas or coal-burning type, then, for auxiliary boilers, valves, instrumentation and safety accessories, check whether it is intact . Thereafter, the induced draft fan is open for ventilation, and then, for ovens and oven cooking operation. Meanwhile, combustion, a small fire after the first fire, and the first open to open the induced draft fan blower. In this way, the entire process can be completed well in Boiler.
Check the gas boiler industry discount fuel oil boiler before ignition gas development to today, can be described as advanced technology, but in order to safe fuel gas-fired boiler must be assured, fuel gas-fired boiler before ignition still have to check, and I'll tell below we pre-ignition of fuel gas boiler should pay attention to those aspects: first: fuel gas-fired boiler fuel can be gas, fuel oil if it is, will have to check whether normal pump and filter into the oil; if it is a gas, will have to check the gas pressure is normal , should not be too high or too low. Then open the supply valve of the second oil or gas: a gas oil-fired boiler smoke flue valve, it must look is smooth, not clear if there is a security risk must be excluded. Third: to look at fuel gas-fired boiler control cabinet knob is not in the normal position. Fourth: I have a good job cleaning fuel gas-fired boiler. For our own lives and property in the operation of a gas fired boiler think we must strictly abide by its code of practice for safe operation.
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