Float level gauge applied in measurement of level of residue slurry with great measured level fluctuation

Abstract

The invention discloses a float level gauge applied in the measurement of the level of residue slurry with great measured level fluctuation. The conventional float level gauge is improved, i.e., a floating accessory is added besides a transmitter, a mounting flange, a magnetic float and a sensor / guide rod in the conventional structure, and depending on the greater buoyancy of the floating accessory in slurry and frequent level fluctuation, the float level gauge can remove fine particles splashed onto the top of the magnetic float due to great level fluctuation and stuck in the gap between the sensor / guide rod and the magnetic float. The invention solves the affection of fine particles, flotage and other adverse factors in the slurry of a residue slurry pond on measurement; and meanwhile, the great surge of the level can be filtered and smoothed as well. In actual production, the long-term application effect of the float level gauge is good. The float level gauge is particularly suitable for environments with turbid slurry, high residue content and frequent level fluctuation. The float level gauge is used for accurately and stably measuring the level, correctly reflecting the actual height of the level and providing stable and reliable real-time measurement data for an automatic control system.

Description

technical field [0001] The invention relates to the technical field of liquid level measurement, in particular to a float liquid level gauge applied to the measurement of liquid level with large fluctuations and slag on the measured surface. Background technique [0002] The temperature of the slurry in the slurry tank of the power plant is relatively high (40°C~50°C). In winter, the slurry in the slurry tank is prone to foam, which leads to condensation on the surface of the original ultrasonic measuring probe; and the area of ​​the slurry tank is small, and the slag The flow rate of incoming water in the slurry tank is high, the liquid level in the tank fluctuates greatly, and waves are easy to generate; there are many impurities and floating objects in the tank. These factors greatly affect the accuracy and stability of the measurement. There have been events in the enterprise where the slurry overflowed or the slurry tank was empty due to measurement reasons, and the ha...

AI Technical Summary

Problems solved by technology

[0004] However, the existing float level gauge has moving parts, and the magnetic float 3 is easily contaminated; especially when the liquid level fluctuates greatly and contains slag, the fine slag in the liquid is easy to get stuck between the magnetic float 3 and the sensor / Between the gaps of the guide rod 4, it is easy to cause the magnetic float 3 to jam; when the liquid level changes, the magnetic float 3 cannot move up and down smoothly along the sensor / guide rod 4, resulting in the float level gauge not being able to measure the liquid level change correctly in time , it is easy to cause liquid overflow or the liquid is drained or emptied, affecting normal production

[0005] Therefore, in view of the above situation, how to solve the problem that the liquid level fluctuates greatly and the floating ball is prone to jamming when it contains slag has become an important technical problem to be solved urgently by those skilled in the art.

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