Heat-conduction oil skid-mounted recycling system and heat-conduction oil recycling method

Abstract

The invention discloses a heat-conduction oil skid-mounted recycling system and a heat-conduction oil recycling method. The recycling system comprises a heat-conduction oil evaporation tank, an evaporation tank condenser, a steam injector, a heavy oil pump and a heat-conduction oil pump which are integrated on a skid-mounted structure. Heat-conduction oil is evaporated through the heat-conductionoil evaporation tank, evaporated gas is condensed through the evaporation tank condenser, and then is recycled through the heat-conduction oil pump, and heavy oil components are recycled through the heavy oil pump; and non-condensable gas in the heat-conduction oil evaporation tank is discharged through the steam injector to maintain the vacuum degree of the heat-conduction oil evaporation tank. By adopting the recycling system and the recycling method to recycle the heat-conduction oil, the device is flexible and easy to operate, does not depend on the operation environment of a factory, hashigh independence, can meet high-efficiency recycling of the heat-conduction oil in different regions, and does not need additional heat sources or power facilities; the heat-conduction oil can be recycled on line, and production and operation of the original device are not influenced; and in the recycling process, the system is stable in running, high in recycling rate and capable of realizing automatic monitoring and control; and the recycling process is energy-saving, environmentally friendly and pollution-free.

Description

technical field [0001] The invention belongs to the field of heat transfer oil recovery, and in particular relates to a heat transfer oil skid mounted recovery system and a heat transfer oil recovery method. Background technique [0002] During use, the heat transfer oil will slowly decompose into low boiling matter and high boiling matter at high temperature, and the low boiling matter will be released in the expansion tank. After long-term operation, the content of high boiling substances will continue to accumulate and increase over time. When the content of high boiling substances rises to a certain value, it will cause coking (tar, coke, etc.) in the system, which not only hinders the flow of oil products, but also reduces heat transfer. At the same time, it will cause the possibility of partial overheating, deformation and bursting of the pipeline, which will bring hidden dangers to the production safety of the factory. Therefore, the heat transfer oil needs to be repl...

AI Technical Summary

Problems solved by technology

After long-term operation, the content of high boiling substances will continue to accumulate and increase over time. When the content of high boiling substances rises to a certain value, it will cause coking (tar, coke, etc.) in the system, which not only hinders the flow of oil products, but also reduces heat transfer. At the same time, it will cause the possibility of local overheating, deformation and bursting of the pipeline, which will bring hidden dangers to the production safety of the factory. Therefore, it is necessary to replace the heat transfer oil regularly

[0003] Due to the high price of high-quality heat transfer oil, the oil consumption of heat transfer oil in modern factories is also relatively large, mostly hundreds to thousands of tons, and the replacement cost is huge

At the same time, stopping to replace the heat transfer oil will also cause the factory to stop production and lose

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