Method for calculating thermoelectric peak shaving capacity of solar gas combined cycle unit
A combined cycle unit and calculation method technology, applied in the field of cogeneration system, can solve the problems of less research on the performance of cogeneration
Pending Publication Date: 2021-01-15
中节能国机联合电力(宁夏)有限公司
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Problems solved by technology
However, the current research on solar-gas combined cycle mainly focuses on the performance of the system in terms of power generation, and there are few studies considering the performance of solar-gas combined cycle heat and power cogeneration
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[0057] The technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Apparently, the described embodiment is only one embodiment of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0058] In the following description, a lot of specific details are set forth in order to fully understand the present invention, but the present invention can also be implemented in other ways different from those described here, and those skilled in the art can do it without departing from the meaning of the present invention. By analogy, the present invention is therefore not limited to the specific examples disclosed below.
[0059] Evaluation of peak-shaving charact...
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The invention discloses a method for calculating the peak shaving capacity of a solar gas-steam combined cycle combined heat and power generation system. The method comprises the following steps of: adding solar energy into a gas-steam combined cycle unit; determining the flow of heat conduction oil supplied to a gas unit by a solar loop and determining the minimum peak regulation output conditionand the maximum peak regulation output improvement of a heat supply unit under the same heat supply load requirement. The method can be applied to calculation and evaluation of the peak regulation maximum and minimum output conditions of a new system after the solar loop is added to the gas-steam combined cycle unit for transformation, and therefore important reference data are provided for the unit peak regulation capacity change conditions and the transformation scheme after solar energy is applied to the gas combined cycle combined heat and power generation unit.
Description
technical field [0001] The invention relates to the field of heat and power cogeneration system and solar heat utilization, in particular to a heat and power cogeneration system in which solar energy and gas combined cycle units are complementary. Background technique [0002] Gas-steam combined cycle heat and power cogeneration units have been used in large cities due to their advantages of cleanliness, environmental protection and high cycle efficiency. With the steady advancement of the "coal-to-gas" policy, the proportion of installed capacity of gas-steam combined cycle continues to increase: as of the end of 2017, four gas-fired thermal power units planned and constructed in Beijing have been completed and put into operation to replace traditional coal-fired units to undertake Heating task in winter. During the heating period, the combined cycle unit adopts the operation mode of "heating to determine power" to ensure the quality of heat supply, so the power supply cap...
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Patent Timeline
Login to View More IPC IPC(8): H02J3/38H02J3/46F01D15/10F02C6/18F02C6/10F03G6/06
CPCF01D15/10F02C6/10F02C6/18F03G6/06H02J3/381H02J3/466H02J2300/24Y02E10/46Y02E10/56Y02E20/14
Inventor 任育杰胡健胡榕王欢覃由利
Owner 中节能国机联合电力(宁夏)有限公司