Internal peep monitoring system applied to high-temperature and high-pressure environment

Abstract

The invention discloses an internal peep monitoring system applied to a high-temperature and high-pressure environment. The system comprises an optical transmitter, a server, a decoder and a monitoring probe for detecting molten ash images in a furnace, wherein the monitoring probe comprises a shell body and a monitor arranged in the shell body; a cooling circulating water pipeline is arranged onthe outer wall of the monitor; a protection nitrogen port and a cooling circulating water port communicated with the cooling circulating water pipeline are formed in the shell body; a signal output connector and a signal source connector are arranged on the monitor; the signal output connector is connected with the input end of a decoder; the output end of the decoder is connected with the input end of the optical transmitter; the output end of the optical transmitter is connected with the input end of the optical receiver and the signal source connector; and the output end of the optical receiver is connected with the server. The system can monitor the real-time state of molten ash in the furnace.

Description

technical field [0001] The invention belongs to the technical field of coal gasification, and relates to an endoscopic monitoring system applied in a high-temperature and high-pressure environment. Background technique [0002] With the increasingly prominent energy and environmental issues, the demand for clean coal utilization technology is becoming more and more urgent. Coal gasification technology has high comprehensive energy efficiency and can realize NO X , SO 2 , dust and other pollutants near zero emissions, CO 2 Emission reduction or capture with low cost is the most effective way to cleanly and efficiently utilize coal. Large-scale dry pulverized coal gasification technology has wide adaptability to coal types, large single furnace production capacity, high carbon conversion rate, and excellent environmental protection performance. The cold gas efficiency and thermal efficiency in the conversion process are superior to other types of gasification technologies. ...

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Problems solved by technology

[0003] The stable operation of the dry pulverized coal gasifier is very important. If the real-time state of the molten ash in the furnace can be directly observed, it will provide a very important basis for the operator to judge the operation status of the gasifier at the first time, but the gasification The environment of the slag pool in the furnace is a high temperature and high pressure environment, the temperature is about 1000°C, and the pressure is generally between 2 and 6 MPa. At present, there is no endoscopy system that can realize the above functions

Chinese patent 201220503775.7 discloses a pipeline and endoscopic monitoring system. Although it is easy to use and has strong practicability, it cannot be used in a high temperature and high pressure environment, which limits its application range.

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