A method for determining the energy saving of a thermal power plant circulating water source absorption heat pump

Abstract

The invention relates to a power plant circulating water source absorption-type heat pump energy saving amount determination method. The method comprises the following steps: a basic energy saving amount of a heat pump is determined; a correction amount for the basic energy saving amount of the heat pump is determined; and according to the basic energy saving amount of the heat pump and the correction amount for the basic energy saving amount of the heat pump, the energy saving amount of the heat pump is determined. On the basis of considering the basic energy saving amount of the heat pump, the method considers bad influences on power plant energy efficiency by the heat pump, and power plant generation reduction amount conversion energy is adopted to correct the basic energy saving amount. A steam turbine heat consumption test can be adopted for determining the power plant generation reduction amount caused by a heat pump system, but the expense is high; the difficulty of adopting a traditional calculation method lies in that as exhaust of the steam turbine is in a wet steam area, enthalpy can not be measured; and the method of the invention adopts an ideal enthalpy reduction and steam turbine relative inner efficiency method, and the above problems can be solved.

Description

Technical field: [0001] The invention relates to a method for measuring and verifying energy saving, in particular to a method for determining energy saving of a circulating water source absorption heat pump in a thermal power plant. Background technique: [0002] The thermal power plant circulating water source absorption heat pump is driven by high-temperature steam from the power plant, lithium bromide solution is used as the absorbent, and water is used as the refrigerant to recover the waste heat in the circulating cooling water of the power plant and provide high-temperature hot water for heating to the outside world to realize low-temperature to high-temperature transmission Thermal equipment. At present, as the whole society pays more and more attention to energy saving and emission reduction, the circulating water source absorption heat pump of thermal power plants, as a typical energy-saving technology with remarkable energy-saving effect and mature and reliable te...

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Problems solved by technology

At present, the heat consumption test of the steam turbine can be used to determine the reduction in power generation of thermal power plants caused by the heat pump system, but the cost is expensive. The difficulty of using the traditional calculation method is that the exhaust steam of the steam turbine is in the wet steam area, and its enthalpy cannot be measured

Although the country has formulated technical general rules for energy saving measurement and verification, there is no operable method for calculating the energy saving of circulating water source absorption heat pumps in thermal power plants, so a method for determining the energy saving of circulating water source absorption heat pumps in thermal power plants is proposed

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