A start-up system for auxiliary steam heating boilers adjacent to thermal power plants
A technology for heating boilers and starting systems, which is used in engine starting, machine/engine, mechanical equipment, etc., can solve the problems of high fuel consumption and high cost, and achieve the effect of reducing fuel consumption and operating costs.
Active Publication Date: 2015-11-18
SOUTHWEST ELECTRIC POWER DESIGN INST OF CHINA POWER ENG CONSULTING GROUP CORP
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Problems solved by technology
[0010] However, in the actual use process, it is found that the boiler starting system with this structure consumes a lot of fuel, and the cost is high, and it needs to be improved from an economic point of view.
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Embodiment
[0017] Example: such as figure 1 As shown, a thermal power plant adjacent machine auxiliary steam heating boiler start-up system includes two steam turbine auxiliary steam headers and two deaerators, each deaerator is connected to an auxiliary steam header of a steam turbine through a steam pipeline and A regulating valve station is connected, and the auxiliary steam headers of the two steam turbines are connected through the auxiliary steam connection main pipe. The specification of the road is Φ530*13, and the specification of the auxiliary steam connecting main pipe between the auxiliary steam headers of the two steam turbines is Φ377*9.
[0018] The valve set on the steam pipeline between the deaerator and the auxiliary steam header of the steam turbine is an electric valve, and the valve set on the bypass of the regulating valve station between the deaerator and the auxiliary steam header of the steam turbine is an adjustable electric valve. valve.
[0019] After such a...
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The invention discloses a starting system for a thermal power plant adjacent machine auxiliary steam heating boiler. The starting system for the thermal power plant adjacent machine auxiliary steam heating boiler comprises two steam turbine auxiliary steam headers and two deaerators, wherein the two deaerators are connected with the two steam turbine auxiliary steam headers through steam pipelines and adjusting valve stations respectively, the two steam turbine auxiliary steam headers are connected through an auxiliary steam connecting mother tube, the specification of the steam pipelines between the deaerators and the steam turbine auxiliary steam headers is Phi720*14, the specification of each adjusting valve bypass is Phi530*13, and the specification of the auxiliary steam connecting mother tube between the two steam turbine auxiliary steam headers is Phi377*9. The starting system has the advantages that due to the fact that the steam pipelines between the deaerators and the steam turbine auxiliary steam headers and the auxiliary steam connecting mother tube between the two steam turbine auxiliary steam headers are enlarged and improved in specification, a heating method also correspondingly changes, oil consumption can be reduced, and operating cost is reduced.
Description
technical field [0001] The invention relates to the technical field of boilers, in particular to a start-up system for an adjacent auxiliary steam heating boiler of a thermal power plant. Background technique [0002] When the 600MW unit starts for the first time, it will have about 75 hours of cold cleaning and about 50 hours of hot cleaning. After the unit is put into operation, if the boiler has been in operation for a long time and the shutdown time exceeds 150 hours, it also needs to be cleaned, and the hot cleaning time is about 20 hours. [0003] When performing hot cleaning, the boiler will start to ignite and burn oil. The conventional unit is equipped with a steam pipeline from the auxiliary steam header to the deaerator and a regulating valve bypass. The specification of the steam pipeline is Φ720*14, and the specification of the regulating valve bypass is Φ377*8. Used for heating or voltage stabilization during unit startup. The specification of the steam conn...
Claims
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IPC IPC(8): F01D19/00
Inventor 付焕兴陈卫国江剑杨强李良川陈波朱瑾胡毅
Owner SOUTHWEST ELECTRIC POWER DESIGN INST OF CHINA POWER ENG CONSULTING GROUP CORP