Continuous CO Analyzing System
Model：CEZ-100
Overview
The continuous CO analyzing system is suitable for the process control of coal-fired boilers. Adopting the direct-extract method, it can continuously monitor the CO (O2) content in the mill, furnace, and flue. The measured data is an important base for boiler operation adjustment and control. Also, analyzing the data and adjusting the air/fuel ratio can prevent the mill from explosions and improve the combustion efficiency. This can give an early-warning on the high-temp corrosion and coking.
Technical specifications
ensor: NDIR (CO) / Zirconia (O2)
Display: 7″ LCD
Sample gas temperature: < 1300℃
Sample gas moisture: < 20%
Communication: RS 232-485
Power supply: 100~240 VAC, 50/60 Hz
Ambient temperature: 5℃~55℃
Analog output: 6-Channel ,4~20 mA
Relay output: 4-Channel
Probe quantity: 1~6
Measuring range:
-Double CO sensors:
-0~500 ppm CO (The theory of thin membrane micro-phonic infrared)
-500~100000 ppm CO (The theory of semiconductor infrared)
Automatically switch each other according to the sample gas content (high/low)
-O2: Min. 0~25% / Max.0~100%
Stability:
-Zero drift: ±2% FS / 7d
-Span drift: ±2% FS / 7d
Repeatability: Relative standard error: (Cv) < 0.5%FS
Response time: System lag time (T90) < 540s
Safety performance:
-Insulation resistance: >5MΩ（internal control standard:10MΩ）
-Insulation strength: 1000V, no circuit damage in one minute after powering on (leakage current: 5mA)
Features
Accuracy - Advanced measurement technology and precise algorithm
Two-stage rapid condensation removal – Ensure the gas components keep constant
Unique DOAS integrates PLS algorithm - Ensure high measurement accuracy
Combined type of measurement cabinet design – Improve spectral strength and reduce the system noise compact on the measurement result
Reliability -Unique system design and high-quality production technology
High adaptability - Enclosed with thermal insulation materials, the system cabinet can adapt to harsh environments
3-stage precise filters – Ensure the dry and clean air enter into the measurement cabinet and improve the sensor’s service-life
The sensor adopts advanced xenon lamp source and spectrometer – Ensure its long service-life and high reliability
Adopt PLC control to carry out automatic calibration and system blowback – Ensure the best system operation situation
Multi-way polling - Adopt six-way polling solution to measure and control six-way measurement points via the polling mode to reduce costs to a great extent
Applications
It is suitable for measuring and monitoring CO and O2 at the outlet of mill, in the furnace and the flue. Based on the feature of high adaptability, its industries cover the power and waste incineration plant.