Analysis System for Gas Heating Value of Converter Coke Oven Blast Furnace Generator

The gas calorific value analysis system for industrial gases mainly includes orchid furnace gas, gas generator gas, coke oven gas, etc.

The main components of the tail gas from the Lan Charcoal Furnace are as follows:

The gas composition of the gas generator is as follows:

Boyan Optoelectronics utilizes its technological innovation advantages to accurately measure the concentration of gas components in coal gas; After long-term practice and drawing on experience, a gas online analysis system has been developed for the preprocessing system. The entire system consists of the following parts:

1. Instrument part: Adopting the multi-component gas analyzer with independent intellectual property rights of Boyan Optoelectronics, it is used for online analysis of the concentration of various gases in the gas.

2. Preprocessing and sampling device: Sample and purify gas under different working conditions to ensure long-term stability, reliability, accuracy, and continuous normal operation of the system.

3. Control system: Adopting a highly automated control system, the system can automatically complete functions such as sampling, blowback, and gas path switching, achieving 24-hour unmanned operation and greatly reducing manual load;

4. Data transmission interface: Test data is transmitted to the higher-level centralized control system through RS-485 or 4-20mA output interface. To provide real-time basis for remote monitoring and process adjustment.

During the implementation of the plan, our company actively provides equipment selection consultation and technical exchange, determines technical solutions and system configurations, targeted design and production, professional production and debugging, personnel training, and other content based on the specific requirements of the customer's site. We will provide users with professional technical services throughout the entire process.

Advantages of gas calorific value analysis system:

This system design adopts multi-stage programs such as full process heat tracing, steam water separation, nitrogen blowback, precision filtration, adsorption, cooling, and separation to ensure reliable system operation and accurate measurement.

Multi channel (1-6 channels) circulation real-time monitoring of gas component concentration values, greatly saving customers the cost of analyzer investment.

● Control a specially customized solenoid valve through PLC to achieve multi-channel circulation, with automatic and manual modes.

Using an industrial touch screen as a human-machine dialogue interface is easy to operate, and each measurement time and alarm point can be programmed arbitrarily. It also has functions such as real-time curves, historical curves, historical data recording, alarm recording, etc.

The entire machine is independently designed with intellectual property rights, ensuring safety and reliability. Friendly human-machine dialogue interface, easy to operate.

System Composition

The system consists of a straight tube sampling probe, a blowback control system, a gas analysis unit, a heat tracing pipeline, a pre-treatment and sampling device, an installation cabinet, and a control system. The straight tube sampling probe includes a straight tube probe and a control valve; The preprocessing and sampling device consists of filtration adsorption device, filtration device, gas water separation and gas drying device, gas diversion device, precision filtration device, etc. Gas analysis instruments can accurately measure CO, O2 in coal gas and calculate the calorific value at the same time. The installation of cabinets and control systems mainly consists of Mitsubishi PLC control devices, solenoid valves, and other control devices.

System working principle

Referring to the system principle flowchart, the three-way switching valve can be used to switch the gas path for sampling and calibration on the gas pipeline.

Open the sampling switch ball valve on the pipeline and perform sampling operations through the touch screen human-machine exchange interface. Divided into automatic mode and manual mode:

Set the sampling time for each channel in automatic mode, and the system can run automatically to cyclically monitor the gas content at each monitoring point. In manual mode, individual detection and analysis can be performed on any monitoring point.

The sample gas enters the gas-liquid separator through the sampling tube to remove the liquid contained in the sample gas, and then enters the electronic condenser drying device, which can achieve 24-hour online monitoring. The dried sample gas, under the control of the regulating valve (flow rate within the allowable range), enters the analysis room of the analyzer, and after analysis, is discharged to the dedicated sewage vent pipeline.