Converter hot water heating device in calcium carbide method polyvinyl chloride production

Abstract

This invention relates to a hot water heating device for a converter in the calcium carbide-based polyvinyl chloride (PVC) production process, comprising a hot water tank, a hot water pump, a heat exchanger, and a converter. The hot water tank and the converter are connected in a circulating loop via an inlet pipe and a return pipe. The hot water pump is connected to the inlet pipe to transport hot water from the hot water tank to the converter. The tube side of the heat exchanger is connected to either the inlet or return pipe, and the shell side inlet of the heat exchanger is used to input steam. After the steam exchanges heat with the tube side of the heat exchanger and condenses, it flows to a pure water station through the shell side outlet of the heat exchanger. This invention utilizes a hot water circulation system to provide a stable and uniform heat source for the converter. Compared to direct steam heating, the water temperature is easier to control precisely, better meeting the activation temperature requirements of the catalyst in the converter, thereby ensuring the conversion rate and production stability of PVC synthesis.

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