An analysis method for the influence of back pressure on turbogenerator set and its output space
A turbo-generator set and back pressure technology, which is applied to steam engine devices, machines/engines, mechanical equipment, etc., can solve problems such as unclear output space
Active Publication Date: 2022-04-12
ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY +3
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Problems solved by technology
[0004] However, the Provincial Dispatching Center has mastered the maximum load of the unit under high back pressure output test conditions, and it is not clear how much output space the unit still has when the back pressure of the unit deviates from 11.8kPa or there is external steam supply
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[0037] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:
[0038] In order to clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific implementation modes and in conjunction with the accompanying drawings. The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, components and arrangements of specific examples are described below. Furthermore, the present invention may repeat reference numerals and / or letters in different instances. This repetition is for the purpose of simplicity and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. It should be noted that components illustrated in the figures are not necessarily drawn to scale. Description...
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The invention discloses an analysis method for the influence of back pressure on a turbogenerator set and its output space. The turbogenerator set includes a boiler, a steam turbine, a generator condenser, a condensate pump, a low-pressure heater, a deaerator, and a feedwater pump , high pressure heaters, superheaters and reheaters and other equipment. The analysis method adopts the following steps: test the maximum output of the unit and the maximum main steam flow; calculate the influence coefficient of the back pressure on the output according to the maximum continuous output working condition of the unit design and the heat balance diagram of the nameplate working condition; calculate the steam turbine generator set at the maximum The back pressure under the main steam flow; calculate the maximum output of the turbogenerator set under the current working condition; compare and calculate the maximum output with the output of the turbogenerator set under the current working condition, and calculate the remaining output space of the turbogenerator set. The invention ensures that the unit can not only operate safely and stably, but also exert its output capacity, and minimize the impact of power cuts on people's lives.
Description
technical field [0001] The invention relates to an analysis method for the influence of back pressure on a steam turbine generator set and its output space, and belongs to the technical field of power generation equipment. Background technique [0002] With the improvement of people's living standards, the utilization rate of household air conditioners has increased significantly. In 2018, the electricity load of a certain province's power grid was as high as 77 million kilowatts, of which the air conditioner load was about 25 million kilowatts, accounting for nearly 1 / 3. In July and August every year, all thermal power units in the entire network must prepare for the most difficult peak and summer. For the provincial dispatch center, they should also keep abreast of the output space of each unit, so as to reasonably arrange the power generation of the units and ensure that the units It can not only operate safely and stably, but also exert its own output ability. [0003] ...
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IPC IPC(8): F01K13/00F01K11/02F01D15/10
CPCF01K13/00F01K11/02F01D15/10
Inventor 郑威朱本国李丽祝令凯郭俊山韩悦
Owner ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY