July 26, 2016, Beijing, China Everbright Paper Co., Ltd. and the company signed a "split 6 tons of steam condensing gas steam qualified brown coal hot water szl boiler contract" by the company responsible for the WNS6-1.25-YQ split condensing gas boiler steam to all production, installation and commissioning work. The product is the use of condensing technology, effective emission of harmful substances SOx, NOx, COx, is industrial boilers efficient and environmentally friendly solutions.
How much gas steam qualified brown coal hot water szl boiler power and water consumption about? One ton of steam coal boiler is about 85 kilograms, a ton of steam consumption of natural gas is about 80 square. I do not know the local fuel prices. Meanwhile, steam boiler tons of gas consumption to about 7 degrees, and tons of gas boiler steam power was insufficient. This is the cost of consumption, you can according to the local point, calculate the cost of coal. Other aspects of superior gas or gas, such as environmental protection, operating environment, repair and maintenance.
First, they use coal-fired qualified brown coal hot water szl boiler combustion grate firing combustion, coal by coal conveyor chain grate plane, complete the combustion process in the furnace. They use the gas boiler fuel combustion chamber, the gas is mixed with air in advance is set in proportion to the burner, injected into the furnace through a nozzle, the torch was complete combustion state in the furnace. Second, the automatic control of the force due to coal-fired boilers factors coal, coal seam thickness, the amount of blowing, the wind amount, and the air volume distribution grate speed limit, to be difficult to automatically adjust the operating parameters of the boiler according to the load. And high-quality gas boilers less impact on factors, may be adjusted only according to a load size of the fire burner, easy to achieve automatic control of three, mainly by the combustion products of coal C, H, O, N and other elements, the composition of the ash and water , but not the surface of the mixed ingredients, but a more complex compounds. After the heat released by combustion of coal, oxygen and other sulfide generation by the flue gas into the atmosphere, these gases are very polluting the environment, on human harm. While natural gas used in the gas boiler, the main component is methane gas, and a small amount of non-hydrocarbon gas, generally free of moisture and ash, and thus produce mainly carbon dioxide and water upon combustion emit a lot of heat, compared to coal, hazardous substances is significantly reduced.
The reason you need to know the qualified brown coal hot water szl boiler energy consumption (reheat steam temperature) reheat steam temperature problems 1. Circumstances reheat temperature rises 1.1 Move boiler furnace flame center, furnace outlet temperature increases (see main economic indicators No. 5 boiler exhaust gas temperature). 1.2 coal increased too fast. 1.3 Excess air amount is increased. 1.4 pulverizing system start-stop. 1.5 Automatic control of the reheater desuperheating water improper adjustment. 1.6 reheater sootblowing time poor choice. 1.7 feed water temperature is low. 1.8 the high pressure turbine exhaust temperature is high. Next to the 1.9 high leakage, high reheater inlet temperature. Hot and cold extraction section greater then 1.10. 1.11 boiler heating surface design is unreasonable, over-temperature reheater tube wall, forced cooling operation. 2. Reheat the following partial flame temperature is lowered center 2.1: burner tilt deviation, hem; burner is switched from the upper to the lower layer, the lower layer or to an excessive amount of the powder; volatile coal fraction is increased, the pulverized coal thinning, water reduction. 2.2 reheater heating surface fouling, slagging, fouling the interior. 2.3 Save reheat the heated drain valve. 2.4 automatic adjustment inappropriate, excessive reheater desuperheating water. 2.5 feedwater temperature. 2.6 economizer and water wall sootblowing time poor choice. 2.7 reduce the amount of coal too fast. 2.8 # 1, # 2 high pressure heater is disabled, increasing the reheated steam flow.
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