Novel converter vaporization boiler liquid level detection method and equipment

Abstract

The invention relates to a novel converter vaporization boiler liquid level detection method and equipment, and belongs to the technical field of steelmaking detection methods and equipment. According to the technical scheme, a colorimetric liquid level meter is connected with the converter vaporization boiler through a special condenser, an infrared high-definition camera collects video graphics of a colorimetric liquid column and a scale to a graphics processor, the graphics processor calculates the liquid level height, the liquid level height is converted into a 4-20 MA analog signal and a video signal transmitted by the Ethernet, and the data is transmitted to the master control monitor and the PLC control system. The method has the beneficial effects that the pressure intensity effect principle and the communicating vessel principle are applied, a colorimetric liquid level meter is selected as a basic sensor, a cooling device is additionally arranged at a connecting pipe, a visual identification analysis and comparison technology is adopted, chromatic aberration comparison is carried out through the visual analysis technology, the standard condition environment is taken as the standard, and the real-time liquid level is calculated; and the requirement for the field detection environment of the converter vaporization boiler is met, and the liquid level in the boiler in the blowing period is successfully and accurately detected.

Description

technical field [0001] The invention relates to a novel converter vaporization boiler liquid level detection method and equipment, belonging to the technical field of converter vaporization boiler liquid level on-line monitoring. Background technique [0002] The converter gasification boiler is an important power equipment used for flue cooling in the production of steelmaking industry. It uses the principle that demineralized water close to the saturation temperature absorbs a large amount of heat during vaporization, so that the flue of the steelmaking converter under high temperature work can be cooled. The generated steam is used for waste heat recovery and power generation, so the converter gasification boiler is also called the converter flue waste heat boiler. The softened water in the vaporization boiler is used to cool the flue through self-circulation, and a large amount of steam is generated. When the steam is recovered, the water in the boiler will become less a...

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Problems solved by technology

[0003] At present, the converter blowing process is a process of great temperature changes. The boiler is in a boiling state of steam-water mixture, and the pressure in the boiler varies. It is difficult to detect the liquid level during the blowing period. bit and experience for hydration

The existing differential pressure, ultrasound, and radar are affected by the mixed water vapor and cannot accurately detect the liquid level in the boiler during the blowing period. There are false liquid levels, which prevents the staff from monitoring the equipment in real time. At the same time, the site is in a high temperature environment. Traditional The service life of the liquid level gauge is less than one year, so the invention of a new converter vaporization boiler liquid level detection method and equipment has become an urgent need

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