ASME PTC6 nozzle is a kind of high-precision flow measurement device, which is used to measure the main feed water flow and condensate flow of power plant.
In the thermal economic benefit analysis of modern large-scale thermal power plant, in order to accurately determine the performance and energy consumption of steam turbine unit, the flow measurement of boiler main feed water and condensate is effectively controlled. When in accordance with ASME When PTC6 standard is tested, the accuracy of main condensate flow and condensate flow is 0.25%, and the influence proportion of the measured value on the accuracy of the calculation result of steam turbine heat rate is about 1 ∶ 1. In the modernization transformation of large steam turbine unit, the assessment of the inner cylinder can reflect the transformation effect, so the influence of main condensate measurement on the cylinder efficiency Bigger. According to ASME standard, high-precision differential pressure element is used for high-precision flow measurement. From the aspect of engineering application measurement, ASME throat pressure nozzle is more and more popular. The device is recommended by the American Society of Mechanical Engineers (ASME). Its superior performance has been generally recognized in the world. In many places where high-precision flow measurement is required, the ASME pct6 nozzle has become the preferred scheme.
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