CO monitoring instrument gas online monitoring system

NegotiableUpdate on 02/27

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

Online Consult

Overview

The complete system for gas analysis in this process (hereinafter referred to as the system) is the application guarantee part (standard gas) of the coal flue gas, carbon monoxide analysis instrument and sampling pretreatment device generated during the coal grinding process; By designing a system based on on-site application conditions and process gas sample conditions, the correct matching and reasonable combination achieved enable the carbon monoxide analysis instrument to adapt well to the special process conditions of gas analysis generated during coal grinding in power plant projects. The system can automatically, continuously, accurately, and reliably analyze the concentration of carbon monoxide in the coal flue gas generated during the coal grinding process. Adopting PLC programmable controller to automatically control the sampling, drainage, probe automatic blowing, fault monitoring and handling operations of the system. During normal operation of the system, it can provide a 4-20mA standard output signal for carbon monoxide; And output an over limit alarm status signal based on the content value of carbon monoxide measurement components. The sensors of the analytical instruments in this system are imported infrared sensors. The system technology scheme is reasonable, the structure is concise, the component performance is reliable, the degree of automation is high, the operation is simple, and the maintenance is small. It is an ideal equipment for analyzing the carbon monoxide content in coal flue gas generated during the coal grinding process in power plants.

Product Details

　1Carbon monoxide CO gas analyzer

Product Overview:

The complete set of process gas online analysis system is a specialized online analysis system applied to the analysis of carbon monoxide content in flue gas of power plants, cement, steel and other projects. The system has accurate measurement technology, fast response speed, and can continuously analyze the measured gas for a long time. It adopts PLC for automatic control and has the characteristics of reasonable structure, safe and reliable operation, high degree of automation, low maintenance, and strong self diagnostic protection function. This instrument has precise measurement, reliable performance, and high cost-effectiveness.

2、 Technical parameters:

　　 Gas components: CO, 02, CO2, CH4, H2, etc

Gas range: customizable according to on-site requirements

Product type: Positive pressure explosion-proof system, non explosion-proof system

Explosion proof type: positive pressure explosion-proof

Power supply: 220V ± 10%, 50HZ ± 1HZ

Capacity: 3KVA Backblowing Gas Source: N2 Pressure 0.4-0.8Mpa Nitrogen, Purified Instrument Air

Signal line: BV 16 × 0.15 or RV 1 × 1.75 plastic wire (reference)

Power cord: Working power supply AVV 3 × 24/0.2; Cable>3KVA (reference)

Backblowing nitrogen gas pipe: 1/2 'galvanized steel pipe or aluminum-plastic pipe drainage pipe, exhaust pipe: 1/2' galvanized steel pipe or aluminum-plastic pipe (a small amount)

　 Carbon monoxide CO gas analyzer

System features: Adopting PLC for automatic control, it has the characteristics of reasonable structure, safe and reliable operation, high degree of automation, low maintenance, strong self diagnostic protection function, etc. The gas analyzer developed with imported sensors has precise measurement, reliable performance, and high cost-effectiveness. The sampling probe is a specialized exhaust gas sampling probe developed based on the actual working conditions of the industry and years of practical experience. The core part of the probe is made of imported materials. The sampling probe adopts internal and external pulse air blowing technology. The reverse blowing air is equipped with a reverse blowing air storage tank to ensure that the reverse blowing air has sufficient pressure and flow to blow the filtered impurities back into the pipeline, achieving good results. The entire blowback system is independent of the injection gas path, making maintenance very convenient and cost-effective. Equipped with fast bypass technology, the load of the imported vacuum pump is 6L/min. When the installation distance between the sampling point and the analytical instrument is 20m, the system lag time T90 ≤ 12S (calculated through experiments). All key components are imported or imported, such as gas analyzer sensors, probe fiber filters, sampling vacuum pumps, sampling electric ball valves, blowback solenoid valves, peristaltic pumps, PLCs, etc.

Working principle:After the system is powered on, it automatically detects whether the sampling probe, heat tracing tube, and condenser have reached the preset temperature. When the temperature reaches the preset value, the system starts the sampling analysis program. The measured gas is extracted by the membrane pump and first passes through a filtering and dust removal sampling probe. It then enters the preprocessing device through the heat tracing sampling tube and sampling electric ball valve.After entering the mist filter to remove moisture and acid mist from the sample gas, it is then dehumidified and dried by the compressor condenser. The dew point of the sample gas at the outlet of the dehumidifier is between 1-5 ℃. Finally, it is finely filtered through the switching valve and alarm protection filter (visible), and the flow rate of the sample gas is adjusted and monitored by the flow meter (normal flow rate 500~1000mL/min) before entering the analytical instrument for analysis.The condensate from the condenser is discharged outside the cabinet through a peristaltic pump. Switching valves can achieve gas path switching operations for sampling and calibration. When the sampling time is up, the system automatically stops sampling, and at the same time, the probe is blown back by the back blowing air. At the same time, it switches to the second sampling point for sampling and analysis. After the time is up, the second path is blown back and switched to sampling and analysis, and the sampling process is repeated one by two.

Application areas: Widely used in industrial process analysis and safety monitoring in the steel, cement kilns, industrial kilns, coal powder preparation, metallurgy, chemical, and power industries.