Pipe inspection system, boiler assembly, and method for pipe inspection

Abstract

The invention provides a pipeline detection system, a boiler assembly and a pipeline detection method. The pipeline detection system includes: a mixer for mixing ammonia gas with air; an injection branch pipe is selectively connected with the mixer, and the injection branch pipe is arranged in the boiler , to inject the mixed gas of ammonia and air into the boiler through the injection branch pipe; the connection pipe is arranged between the mixer and the injection branch pipe, and the injection branch pipe communicates with the mixer through the connection pipe; the detection device is connected with the connection pipe, and the detection device is used for Test whether there is wear in the injection branch pipe; the detection device includes a detection pipeline and a detection component, the detection pipeline can be selectively communicated with the connecting pipeline, and the detection pipeline is used to introduce external air to the injection branch pipe; the detection component is arranged on the detection pipeline, and the detection component It is used to measure the wind speed and differential pressure in the detection pipeline. The technical solution provided by the invention can solve the technical problem in the prior art that pipeline damage cannot be quickly detected.

Description

technical field [0001] The invention relates to the field of SCR out-of-stock technology, in particular to a pipeline detection system, a boiler assembly and a pipeline detection method. Background technique [0002] At present, the SCR selective catalytic reduction denitrification technology has developed rapidly in recent years, and the technology is relatively mature. The principle is that under the action of the catalyst, the reducing agent (ammonia) reacts with the nitrogen oxides in the flue gas to form harmless nitrogen and water. , thereby removing NOx in the flue gas. The SCR denitrification process is generally as follows: the reducing agent (ammonia) is stored in the ammonia tank in liquid form, and the liquid ammonia is evaporated and gasified through the evaporator before being injected into the flue gas of the SCR system. It is sprayed into the flue gas upstream of the SCR reactor, and the fully mixed reducing agent and flue gas react under the action of the c...

AI Technical Summary

Problems solved by technology

[0007] The main purpose of the present invention is to provide a pipeline detection system, a boiler assembly and a pipeline detection method to solve the technical problem that the pipeline damage cannot be quickly detected in the prior art

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