Deep peak regulation heat supply method based on CFB heat supply unit
A deep peak regulation heat supply method based on CFB heat supply units comprises the following steps that two coal feeders corresponding to a coal inlet in the middle of a boiler hearth are stopped, the output of other coal feeders is increased, the total coal feeding amount is kept unchanged, NOx...
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| creator | ZHANG ZHENHUA XU FENGCHEN GUO SHUGUANG ZHOU LIBO REN DAWEI TONG LAGA HAN XURUI TIAN ZHENGBIN GAO JIANWEN GOU XUMING WANG YONGSHENG LI YANG MA GUANGHUI YUAN XUEYIN SUN HAIYING ZHENG WEI DING YUSHUANG |
| description | A deep peak regulation heat supply method based on CFB heat supply units comprises the following steps that two coal feeders corresponding to a coal inlet in the middle of a boiler hearth are stopped, the output of other coal feeders is increased, the total coal feeding amount is kept unchanged, NOx emission can be reduced, and meanwhile the electric load of each unit can be reduced by 1 MW; on the basis that a unit enters deep peak regulation, the enthalpy value of steam entering a high-pressure cylinder and a medium-pressure cylinder of a steam turbine is reduced by increasing the desuperheating water amount of a superheater and a reheater, and then the purposes of reducing the power generation output of the unit and achieving ultra-deep peak regulation are achieved. After a unit enters deep peak regulation, the electrical load is stabilized at about 30MW, the bed temperature of a CFB boiler is reduced through coal conveying combustion adjustment, and the main reheat steam temperature is further reduced by |
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on the basis that a unit enters deep peak regulation, the enthalpy value of steam entering a high-pressure cylinder and a medium-pressure cylinder of a steam turbine is reduced by increasing the desuperheating water amount of a superheater and a reheater, and then the purposes of reducing the power generation output of the unit and achieving ultra-deep peak regulation are achieved. After a unit enters deep peak regulation, the electrical load is stabilized at about 30MW, the bed temperature of a CFB boiler is reduced through coal conveying combustion adjustment, and the main reheat steam temperature is further reduced by</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | AIR AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHINBOILERS BLASTING COMBUSTION APPARATUS COMBUSTION PROCESSES CONTROLLING WATER LEVEL DOMESTIC HOT-WATER SUPPLY SYSTEMS DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATINGSYSTEMS ELEMENTS OR COMPONENTS THEREFOR FEED-WATER SUPPLY FEEDING FUEL TO COMBUSTION APPARATUS HEATING LIGHTING MECHANICAL ENGINEERING METHODS OF STEAM GENERATION METHODSOR APPARATUS FOR COMBUSTION USING FLUID FUELOR SOLID FUEL SUSPENDED IN PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER RANGES STEAM BOILERS STEAM GENERATION VENTILATING WEAPONS |
| title | Deep peak regulation heat supply method based on CFB heat supply unit |
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