System for measuring gas oxygen content in desulfurization waste liquid acid-making process

The utility model relates to a system for measuring the oxygen content of gas in the acid making process of desulfurization waste liquid. The system comprises an inlet temperature measuring device, anoutlet temperature measuring device, thermocouples 1-3 and a plurality of zirconium oxide analyzer measuring interfaces, the inlet temperature measuring device is installed on an inlet process gas pipeline of the waste heat boiler, and the outlet temperature measuring device is installed on an outlet process gas pipeline of the waste heat boiler. The thermocouples I to III are arranged on the waste heat boiler; a plurality of measuring interfaces are reserved in the waste heat boiler and used for measuring of the zirconium oxide analyzer, one center measuring interface is arranged corresponding to the position of the second thermocouple, and the other measuring interfaces are arranged on the two sides of the center measuring interface. According to the utility model, the zirconium oxide analyzer can complete meas