Power plant flue gas flowmeter

『Power plant flue gas flowmeter』Related information(flow rotameter|digital flow meter|balo meter|hydraulic flow meter|volumetric meter|positive displacement meter|pitot tube flow meter|displacement meter|cfm meter|variable area flow meter|inline flow meter|differential pressure flow meter|calibrated flow meter|velocity meter|paddle wheel flow meter|oval gear flow meter|anemometer hvac|multiphase flow meter|doppler flow meter|thorpe tube flowmeter|heat flow meter)

1. What are the specific application scenarios of the Venturi flowmeter in power plants?

The core application scenario of the Venturi flowmeter in power plants revolves around precise measurement and energy consumption control of various fluid media, covering the entire process of the main and auxiliary systems. The measurement of the main steam system is mainly used for monitoring the flow of the main steam and reheated steam of the generator set. By accurately measuring the steam flow and calculating the coal consumption and plant power consumption rate in conjunction with pressure and temperature parameters, it is a thermal performance test for power plants The core equipment for AGC load dispatch is the equipment for measuring the amount of waste. Some units with a capacity of over 300MW will install multiple Venturi flow meters in the main steam header and high and low side pipelines to achieve zoning measurement. 2. The measurement of the feedwater system is applied to the measurement of boiler feedwater and condensate flow, and accurate measurement of feedwater flow is a key parameter for balancing the boiler steam water system and regulating the superheated steam temperature. It can also be used to calculate the thermal efficiency and water replenishment rate of boiler flushing and combustion leakage. Some supercritical units will install Venturi flow meters in the feedwater bypass and condensate fine treatment inlet and outlet to avoid the problem of conventional orifice plates being easily eroded and worn by two-phase flow of steam and water. 3. The measurement of the flue gas system includes monitoring of the exhaust gas, primary air, and secondary air flow at the outlet of the induced draft fa

n: Wind measurement is used to control the concentration of coal powder transportation and ensure the stability of boiler combustion; -Secondary air metering combined with oxygen analyzer to achieve combustion optimization, reduce NOx emissions and coal consumption; -Some power plants will also install Venturi flow meters in the desulfurization and denitrification inlet flue to accurately measure the flue gas flow rate to match the dosage of chemicals. 4. Auxiliary system measurement covers various auxiliary media measurement in the power plant: - Circulating cooling water flow rate: Monitor the circulating water flow rate of the condenser section shed, calculate the condenser end difference and vacuum degree, and evaluate the heat transfer efficiency; -Compressed air, desalinated water, and fuel flow rates: used for auxiliary energy consumption accounting and material consumption statistics, such as compressed air metering in air compressor stations, which can assist in energy-saving renovations; -Ash water and desulfurization slurry flow rate: used for medium balance control in pneumatic ash removal and wet desulfurization systems to avoid pipeline blockage or excessive dosage of chemicals. As one of the core equipment for energy measurement and environmental emission monitoring in power plants, the measurement data can be directly used as the basis for energy conservation and consumption reduction assessment, carbon emission accounting, and online monitoring by environmental protection departments, in accordance with the latest standard requirements of GB 17167 "General Rules for the Equipping and Management of Energy Measuring Instruments in Energy Using Units".

1. What are the specific application scenarios of the Venturi flowmeter in power plants?

2. How to measure the flue gas flow rate of a r

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