Gas-steam combined cycle heat supply system and cost allocation method
A combined cycle and heating system technology, applied in steam generation, steam generation devices, combined combustion mitigation, etc., can solve problems such as short commissioning time and lack of operating experience in power generation enterprises, so as to achieve the best operating economic benefits and realize repeated Effective use of the effect
Pending Publication Date: 2022-08-02
XIAN THERMAL POWER RES INST CO LTD
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Problems solved by technology
At present, the operation time of large gas turbines and their combined cycle units is relatively short, and the operation experience of power generation enterprises is relatively lacking
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[0054] In order to make those skilled in the art better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only Embodiments are part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0055] It should be noted that the terms "first", "second" and the like in the description and claims of the present invention and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used may be interchanged under appropriate ...
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The invention discloses a gas-steam combined cycle heat supply system and a cost allocation method. The method comprises the following steps: fitting a plurality of real-time measurement point data of unit power supply power and natural gas flow during pure condensing operation to obtain a pure condensing power supply power consumption curve; determining real-time power supply consumption according to the real-time power of unit operation in combination with the fitted power supply consumption rate curve; the heat supply gas consumption is determined according to the real-time natural gas flow and the power supply gas consumption; the real-time unit power supply cost, the real-time heat supply cost, the power supply income, the heat supply income and the total income are determined by combining the natural gas price, the heat price and the power supply price; through operation optimization, the power supply and heat supply profit balance point is calculated in real time with profit maximization of the gas-steam combined cycle unit as the target, and the power supply and heat supply proportion of the unit is adjusted. The cost of the natural gas is shared to power supply and heat supply in combination with the real-time condition of unit operation.
Description
technical field [0001] The invention belongs to the technical field of gas-steam combined cycle power generation, and in particular relates to a gas-steam combined cycle heating system and a cost sharing method. Background technique [0002] The gas-steam combined cycle system is based on the principle of energy cascade utilization, with high energy utilization and low pollution. In the process of gas-steam combined cycle power generation, the waste heat boiler is required to recover the high temperature exhaust gas of the gas turbine, and use this part of the waste heat to reduce heat loss. At the same time, in the process of steam cycle, the steam must first enter the steam turbine to do work to ensure the power supply, and then part of the steam is extracted to provide heat users. Therefore, in the gas-steam combined cycle cogeneration unit, the two energy products of electricity and heat are different in energy grade; The grade of heat contained in the working fluid st...
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IPC IPC(8): G06Q10/04G06Q10/06G06Q50/06F22B33/18
CPCG06Q10/04G06Q10/06313G06Q50/06F22B33/18Y02P80/15
Inventor 郑少雄何欣欣薛志恒张朋飞赵杰吴涛孟勇王伟锋赵永坚
Owner XIAN THERMAL POWER RES INST CO LTD