| 摘要 |
A device for heat treating, using steam at reduced pressure, directly or indirectly, a material or product to be heat-treated, which includes a heat-exchange chamber which is supplied with steam via a pressure- reduction valve and evacuated by means of an ejector device which can control the heating temperature of the heat-exchange chamber by means of the control of the working fluid of the ejector device. The device may be used as a safety device and, advantageously, in the chemicals and food industries.
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