| 摘要 |
FIELD: heating.SUBSTANCE: invention relates to a method and a device with high energy use efficiency and formation of a small amount of waste heat. A food product roasting device includes a roasting unit having longitudinal loading and unloading ends, an oil recirculation system connected to the roasting unit, a heat exchanger for oil heating in the oil recirculation system, an exhaust cabinet above the roasting unit for collection of steam generated during the roasting process, a pipeline for supply of steam from the exhaust cabinet and a steam compression compressor having an inlet hole connected to the pipeline and an outlet hole for compressed steam, which is connected to the heat exchanger. Versions of the food product roasting method include a heating stage of the oil returned to a repeated cycle from the roasting unit using the heat exchanger, to which heat of steam formed during roasting is supplied; a collection stage of steam generated during roasting in the exhaust cabinet above the roasting unit, a compression stage of steam in the exhaust cabinet under pressure exceeding atmospheric pressure; a stage of use of steam under pressure exceeding the atmospheric pressure.EFFECT: improved structure.68 cl, 2 tbl, 1 dwg |
