Centralized leakage detection device and method for airtight cooling system of blast furnace

Abstract

The invention provides a centralized leakage detection device for an airtight cooling system of a blast furnace. The airtight cooling system of the blast furnace is provided with a plurality of cooler branch pipeline water strings in the circumferential direction of the blast furnace. The cooler branch pipeline water strings are divided into a plurality of subareas along the circumference of the blast furnace. Each subarea comprises the corresponding cooler branch pipeline water strings and serves as a centralized leakage detection area. Each cooler branch pipeline water string in each subarea is connected with a hose through a three-way valve and connected with a connecting branch pipe through a rapid connector, the connecting branch pipes in each subarea are connected to a connecting main pipe, the outlet end of the connecting main pipe is connected with a drainage pipe communicating with a drainage tank, and a drainage valve is arranged in the drainage pipe; a pipeline at the outlet end of the connecting main pipe in each subarea is provided with a pressure gauge and connected with a degassing bag through a connecting pipe, the degassing bag is provided with an exhaust pipe and an exhaust valve, the upper portion of the degassing bag is provided with an overflow pipe and an overflow valve, and the outlet end of the degassing bag is connected to the drainage pipe; and each degassing bag is provided with an inlet valve. By the adoption of the centralized leakage detection device for the airtight cooling system of the blast furnace, breakage and leakage points of coolers of the airtight cooling system of the blast furnace can be detected rapidly, efficiently and accurately.

Description

technical field [0001] The invention relates to blast furnace technology, in particular to a centralized leak detection device and method for a closed cooling system of a blast furnace. Background technique [0002] The blast furnace is a closed reactor with high temperature and high pressure. In order to prolong its service life, cooling devices are installed in each part of the blast furnace, which is expected to cool down the refractory materials of the blast furnace and form an effective slag skin to protect the charge, air flow and slag iron. scour. Cooling water is selected as the carrier of the heat from the cooling device. Once leakage occurs, it will easily cause the cooling equipment to burn out and leak a large amount of water into the blast furnace, which seriously affects the production and operation of the blast furnace, and may even lead to a furnace cooling accident. Therefore, fast, stable, efficient and accurate leak detection of cooling equipment damage i...

AI Technical Summary

Problems solved by technology

The patent only depends on the change of the electrical conductivity to determine whether there is water leakage. The water leakage that often occurs in the blast furnace leaks into the furnace. At this time, the electrical conductivity of the cooling water has not changed, and the patent cannot confirm

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