High temperature flue gas flowmeter Power plant steel pipeline flue gas flowmeter
High temperature flue gas flowmeter Power plant steel pipeline flue gas flowmeter
Introduction of Flue Gas Flow Meter : High Temperature Flue Gas Flow Meter  High temperature flue gas flow meter, with constant power measurement method, an effective solution to the temperature | key issues humidity, and gas mass flow meter and the large diameter low flow rates are inherent characteristics, to achieve a high-precision measurement of large pipes. The special material plus anti-corrosion coating can effectively solve the problem of anti-corrosion and ensure long-term high-precision measurement. The sensor only has two smooth probes, so there is no problem of blocking. If there is mud and water adhesion probe, an automatic cleaning device can be added.
High temperature flue gas flow meter features :
( 1 ) High linearity, high stability, and high accuracy
( 2 ) Range ratio 100 : 1 (up to 1000 : 1 ), which can be expanded according to user requirements
( 3 ) Small flow can be measured down to zero with a resolution of 0.001m|s
( 4 ) High-precision measurement of large-diameter small flow (pipe size up to 15m )
( 5 ) The influence of vibration is negligible, the pressure loss is negligible, and it is insensitive to small particles such as dust
( 6 ) The temperature and pressure of the medium are independent and the temperature of the medium is self-compensated. The temperature of the medium can reach 500 °C.   High-precision measurement of wet gas
( 7 ) Type dynamic online correction for flow signal
( 8 ) LCD display, instantaneous flow, cumulative flow at the same time
The principle of high-temperature flue gas flowmeter :
The high-temperature flue gas flowmeter is a flow meter based on the thermal diffusion principle. That is, when a fluid flows through a heating object, the amount of heat loss of the heating object is proportional to the flow rate of the fluid. That is, the sensor of the flowmeter has two standard-grade RTDs , one for the heat source and one for measuring the temperature of the fluid. When the fluid flows, the temperature difference between the two has a non-linear relationship with the size of the flow. The meter can then convert this relationship into a linear output that measures the flow signal.
    Flowmeters manufactured using the principle of thermal diffusion have two design methods: one is based on the principle of constant temperature difference and the other is based on the principle of constant power. Based on a common data model:. P | △ T = A + B (Q) N ?? -1 where: P ?? - power dissipation, △ T ?? - temperature difference between the two sensors, A, B is The coefficient related to the thermal properties of the gas. Constant power Principle: constant power dissipation, the temperature difference △ T and flow rate Q of the fluid to a decreasing exponential function relation.
High temperature flue gas flowmeter performance indicators :
1 : Measurement range: 0 to 120m|s ( 20 °C, 101.33KPa )
2 : Outer Diameter of Pipe: 0.1m to 15m
2 : Accuracy: ± 1 % of reading ± 0.5 % of full scale
3 : Repeatability: ± 0.15 % FS
4 : Ambient temperature range: -40 °C · 80 °C humidity less than 90 % RH
5 : Medium temperature range: -40-500 °C
6 : Output: Flow: 4-20mADC ; Temperature: 4-20mADC Communication: RS232|RS485
7: Power supply:;? 24VDC 220V relay output limit
8 : Process pressure: < 1.6Mpa (expanded on request)
9 : Probe Structure: The standard probe is M6 , 316 stainless steel rod.
Flue gas flow meter applications : High temperature flue gas flow meters are widely used in a variety of industrial applications, including: steelmaking, power generation, petroleum, metallurgy, boiler piping, chemicals, pharmaceuticals, building materials processing, coal mining and mining, cement manufacturing and packaging, etc. industry. In particular, gas and gas quality analysis of pipelines; leakage gas testing, primary air blasting of power plants, measurement of secondary air, measurement of blast furnace gas in ironworks, and supervision and control of flue gas flow;
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Flue gas flow meter application
â—† Flue Gas Flowmeters in Public Works-- Applications of Supervision and Control of Electricity, Gas and Water Treatment
Gases for pipelines; general-purpose systems; biogas; gas;natural gas; liquefied gas; boiler preheated air
â—†Application of Flue Gas Flowmeter in Oil and Gas Industry
Energy Exchange; Filling Well Gas Recovery; Gas Metering; Gas Quality Analysis; Leaking Gas Testing; Natural Gas Measurement; Torch Gas Monitoring and Control
â—†Application of Flue Gas Flowmeter in Power Industry
Gas measurement during gas distribution in fuel systems; Measurement of various gases in boilers and auxiliary systems; Gas measurement in gas furnaces; Hydrogen measurement; Measurement of primary and secondary air in power plant blast furnaces
â—†Application of Flue Gas Flowmeter in Chemical Industry
Flue gas circulation monitoring; gas flow measurement in sampling system; gas flow measurement of induced draft fan; ammonia gas measurement in fertilizer plant; various gas flow measurement in battery factory
â—†Application of Flue Gas Flowmeter in Metallurgical Industry
Measurement of aerated iron and steel plants; measurement of blast furnace gas in ironworks; measurement of coke oven gas in coking plant; measurement and control of heating furnace gas (blast furnace gas, coking gas, natural gas, etc.) in rolling mills; hydrogen and oxygen in heat treatment quenching furnaces, etc. Nitrogen and other gas controls
â—† Application of Flue Gas Flowmeter in Pulp and Paper Industry
Measurement of gas in wastewater treatment systems; monitoring and control of flue gas flow; secondary / third air recovery from boilers; measurement of gas and air supply from boilers
â—†Application of Flue Gas Flowmeter in Food and Pharmaceutical Related Industries
Addition of fresh air during processing operations; CO2 treatment in breweries; flow of hot air in bottle sterilizers; gas flow measurement during thermal oxidation; ventilation system; boiler intake, exhaust gas, process control
â—†Application of Flue Gas Flowmeter in Environmental Protection Industry
Gas measurement during biogas use; Measurement of chlorine gas during chlorine treatment; Measurement of aeration tank gas during sewage treatment; Flue-pipe flue
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