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Temperature measurement of boiler flue system
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2019-10-31
Temperature measuring points of boiler flue system in thermal power station mainly include
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Fume temperature before and after low- temperature reheater
Fume temperature before and after low- temperature superheater
Fume temperature at economizer outlet
Fume temperature at the inlet and outlet of air preheater
Fume temperature at the inlet and outlet of induced draft fan
Bearing temperature of induced draft fan
Motor coil temperature of induced draft fan
Motor bearing temperature of induced draft fan
Temperature of Primary air grinding
Temperature at the outlet of separator
Temperature of motor winding
Temperature of motor core

Generally, a relatively thick protective pipe and a large-diameter connecting thread are used to improve the anti-vibration capacity. Due to the erosion of solid particles in the flue gas, a sprayed wear-resistant casing pipe is used to resist the erosion.

 
Technical parameters of temperature sensor of boiler flue system
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Graduation Measuring range Nominal pressure Total length L / insertion depth u External protective pipe Process connection
K
E
Pt100
0~800
9.8MPa
480/230
680/ 430
880/ 630
1380/ 1130
321
316
Wear resistant spraying (n)
2"NPT R2ZG2"
0~600
0~400


 
Recommended parameters of temperature sensor of boiler flue system
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Graduation Measuring range Number of pairs Diameter of external protective pipe Material of outer protective pipe Process connection
K
E
Pt100
0~800 Double pieces Φ28 Wear resistant spraying (n) 2"NPT
0~600
0~400

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