Condenser pressure calculation method and system
A technology of condenser pressure and calculation method, which is applied in instrumentation, design optimization/simulation, geometric CAD, etc., and can solve the problems of inaccurate condenser pressure measurement.
Pending Publication Date: 2022-07-26
XIAN THERMAL POWER RES INST CO LTD +1
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[0003] The purpose of the present invention is to overcome the above-mentioned shortcoming of prior art, provide a kind of calculation method and system of condenser pressure, to solve the problem of inaccurate condenser pressure measurement in prior art
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[0056] Below in conjunction with accompanying drawing, the present invention is described in further detail:
[0057] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation or a specific orientation. construction and operation, and therefore should not be construed as limiting the invention; the terms "first", "second", "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; furthermore, unless otherwise Clearly stipulated and defined, the terms "inst...
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The invention discloses a condenser pressure calculation method and system, and the calculation method can obtain the condenser pressure through calculation in order to obtain the accurate condenser pressure. Firstly, the flow of cooling water entering a condenser of a unit and the inlet and outlet water temperature of the cooling water are obtained through data of the last test performed by the unit, the thermal load entering the condenser can be calculated, and then a function relation between the thermal load of the unit and the load of the unit can be fitted; therefore, the real-time thermal load of the unit can be quickly obtained under any unit load. And then the saturation temperature corresponding to the condenser pressure can be obtained through calculation of the condenser heat transfer coefficient, the end difference and the logarithm average, and therefore the condenser pressure is obtained. The currently measured condenser pressure can be verified through the calculated condenser pressure, if the deviation is too large, it can be judged that the measurement condition has large deviation, and maintenance and calibration of the condenser pressure measuring point are conducted in time.
Description
technical field [0001] The invention belongs to the technical field of energy saving and consumption reduction of coal-fired units, and in particular relates to a method and system for calculating the pressure of a condenser. Background technique [0002] The condenser is an important condensing equipment in the power plant. The performance of the condenser equipment has a great influence on the steam turbine unit. The main performance indicator of the condenser is the condenser pressure, so the condenser pressure can be used to judge the condensate. Condensation effect of steam boiler. The condenser pressure can be measured by the condenser pressure gauge installed at 30cm on the first row of cooling pipes of the condenser. There will be some deviations in condenser pressure, and some power plants use low-pressure cylinder exhaust pressure instead of condenser pressure, and some power plants install condenser pressure transfer pipes that are prone to accumulation of water,...
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IPC IPC(8): G06F30/17G06F30/20G06F119/14
CPCG06F30/17G06F30/20G06F2119/14
Inventor 韩立李永康孙伟鹏孙伟生乔桂江永王浩光李立雄陈顺宝周雨锋林典鹏黄坚华郭鹏飞陈延波唐健
Owner XIAN THERMAL POWER RES INST CO LTD