An experimental system and experimental method for a split-tube shell-type waste heat boiler

Abstract

The invention relates to a split tube-shell type waste heat boiler experiment system and method. The system comprises a steam pocket and a boiler barrel with the horizontally-arranged axis. The steam pocket is located above the boiler barrel. The boiler barrel is communicated with the steam pocket through an ascending pipe and a descending pipe to form a loop. The upper end of the ascending pipe stretches into the steam pocket. The sides of the steam pocket are provided with a water supplementing pipe and an overflowing pipe with a valve respectively. A steam eduction pipe is arranged on the top of the steam pocket, a plurality of columns of pipe holes are uniformly formed in one end of the boiler barrel, and a heating pipe is installed inside each pipe hole; a plurality of columns of pressure measuring holes are uniformly formed inside gaps of pipe bundles of the heating pipes, and a pressure measuring device is installed inside each pressure measuring hole. By arranging the boiler barrel, the steam pocket, the ascending pipe, the descending pipe, the overflowing pipe, the steam eduction pipe and other components, a split tube-shell type waste heat boiler natural circulation experiment system platform is formed; the pressure measuring holes are formed in the gaps of the pipe bundles of the boiler barrel, pressure measuring points are formed, a differential pressure method can be adopted for simultaneously measuring the steam contents of different regions in the pipe bundles, operation is convenient and rapid, and the reliability is high.

Description

[0001] 【Technical field】 [0002] The invention relates to the research field of industrial waste heat recovery and utilization equipment and methods, in particular to an experimental system and an experimental method for a split-tube shell type waste heat boiler. [0003] 【Background technique】 [0004] Waste heat utilization technology has always been a research hotspot, accompanied by the emergence of many advanced technologies and the elimination of backward technologies. In recent years, my country's policy orientation has enabled the rapid development of waste heat utilization technology in industry, and the waste heat utilization of some high energy-consuming industries has mature technology development potential and market application prospects. Shell-and-tube waste heat boiler is an important equipment for recovering high-temperature flue gas waste heat. Its essence is a heat exchanger that uses high-temperature flue gas as a heat source to generate steam. The steam ge...

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Problems solved by technology

[0007] A comprehensive literature survey can also be found that the experimental research on the phase transfer heat of the shell-and-tube heat exchanger does not correlate the measurement of the surface boiling and convective heat transfer coefficients of the tube bundle with the measurement of the local vapor content at the same time.

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