Warning device for accurately measuring liquid level and false liquid level of absorption tower

Abstract

The invention provides a warning device for accurately measuring liquid level and false liquid level of an absorption tower. According to structural and technological characteristics of the desulfurizing absorption tower, the liquid level of the absorption tower is measured by transforming a traditional magnetic turning plate liquid level meter into a split structure. Based on accurate liquid level measurement of the absorption tower, one electric conducting liquid level switch is further arranged, along an outer circle of the absorption tower at 90 degrees, at two height positions below an overflow port respectively and is used for detecting bubble height and giving an alarm. In addition, three pressure transmitters arranged at the bottom of the absorption tower and used for measuring the liquid level of the absorption tower serve as standby and auxiliary measures of the measuring device. By adopting the three measures, the liquid level of the absorption tower can be accurately measured, and an alarm is given in time when the false liquid level is ultrahigh. The warning device can ensure that relevant devices of the absorption tower operate under designed working conditions, the operating efficiency of the devices is improved, energy consumption is reduced, and safe and efficient operation of the desulfurizing absorption tower is ensured.

Description

technical field [0001] The patent of the present invention relates to a device for accurate measurement of the liquid level of the slurry pool in the absorption tower of the wet desulfurization system, false liquid level detection and alarm. The device uses a split magnetic flap liquid level gauge to measure the liquid level in the slurry pool of the absorption tower, and a conductive liquid level switch detects the false liquid level in the slurry pool of the absorption tower and gives an alarm. . Background technique [0002] The existing desulfurization absorbing tower slurry tank liquid level measurement uses a pressure transmitter plus an ultrasonic liquid level gauge. Because the density of the slurry tank slurry in the absorbing tower is not the same at different heights, the pressure transmitter cannot accurately measure the liquid level of the absorbing tower. Due to the spraying of slurry in the tower, the impact of air bubbles and flue gas above the liquid surfac...

AI Technical Summary

Problems solved by technology

Although the lower liquid level operation ensures safety, it sacrifices production efficiency and causes waste

Reduced liquid level operation will cause the related equipment of the absorption tower to fail to operate under the design conditions, and there will be insufficient outlet pressure of the slurry circulating pump and insufficient oxidation time of the slurry, etc., which will affect the operating efficiency of the desulfurization system, resulting in a large waste of resources and increasing energy consumption. Consumption and operating costs of the desulfurization system

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