Converter water seal check valve liquid level detection device

Abstract

The invention discloses a converter water seal check valve liquid level detection device, which comprises an equilibrium water level overflow chamber connected to a converter water seal check valve through a water seal valve water connection pipe, a water seal water level overflow chamber connected to the bottom of the equilibrium water level overflow chamber, a measurement water barrel connected to the equilibrium water level overflow chamber through a water level gauge water connection pipe and a water level gauge gas connection pipe respectively, a buoy disposed in the measurement water barrel, a signal detection and conversion unit connected to the buoy. The liquid level detection device also includes an equilibrium gas connection pipe disposed over the water seal valve water connection pipe, also one end of the equilibrium gas connection pipe is connected to the converter water seal check valve, and the other end is connected to the equilibrium water level overflow chamber. The liquid level detection device can increase the fault-free work time and reduce the cost of equipment repair, ensures the accuracy of water seal check valve water level detection data, improves the safety control factor of a gas recovery system, and also has the advantages of easy implementation and low cost, etc.

Description

technical field [0001] The invention relates to liquid level detection equipment, more specifically, to a liquid level detection device for a converter water seal check valve. Background technique [0002] The converter gas water seal check valve is one of the important equipment of the converter OG system, which is installed between the three-way switching valve and the V-shaped water seal valve of the converter flue. During converter blowing, the water-sealed check valve and the three-way switching valve interlock with each other to complete the valve switching action of converter gas recovery. During converter maintenance or long-term maintenance, the water-sealed check valve and V-shaped water-sealed valve cut off the gas in the converter gas public pipe network at the same time to ensure the safety of maintenance in the converter area. These processes are automatically realized by sequential control to open and close the water-sealed check valve. When the valve is cut...

AI Technical Summary

Problems solved by technology

[0005] In the actual use of the existing converter water seal check valve liquid level detection device, the existing faults are mainly manifested in the following points: First, the actual water level of the converter water seal check valve 1 is normal but the water level gauge has no output, and the central control It shows that the water level is low and alarms, resulting in abnormal gas recovery. Second, the water seal check valve 1 actually has no water seal or the water level of the water seal is low, but the water level gauge has a false signal output, and the central control shows that the water level is normal, which may easily cause gas backflow in the pipe network. lead to safety incidents

The third is that there is a detection error between the signal output by the liquid level detection device and the actual water level of the water seal check valve 1, and in serious cases, it will cause a program control failure in the gas recovery due to abnormal signals.

When the water level detection device is overhauled, it is necessary to go to the site to dismantle the detection device and clean the internal parts before troubleshooting, which increases the maintenance cost and affects the production plan of the converter steelmaking

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