Control method of dry-burning-resistant food heat preservation cabinet

Abstract

The invention provides a control method of an anti-dry-burning food heat preservation cabinet. The heat preservation cabinet comprises a steam generator, a heating device, a temperature monitoring device and a steam channel. The method comprises the steps that the heating device is controlled to heat the steam generator; collecting the temperature of a channel outlet of the steam channel through a temperature monitoring device; in the water absorption stage of the heat preservation cabinet, when the average value of the temperature in the water absorption preset time period t1 is smaller than a first preset temperature value T1, it is judged that the steam generation device is dry-burnt; or in the heat preservation stage of the heat preservation cabinet, when the average value of the temperature in the heat preservation preset time period t2 is smaller than the second preset temperature value T2, it is judged that the steam generation device is dry-burnt. Therefore, the temperature monitoring device is arranged to detect the temperature of the steam channel, whether the steam generating device is dry-burnt or not can be judged in the water absorption stage and the heat preservation stage of the heat preservation stage, the number of parts of the heat preservation cabinet is small, and cost is low.

Description

technical field [0001] The present invention generally relates to the field of electric heating appliances, and more particularly relates to a control method of a dry-burning-proof food holding cabinet. Background technique [0002] At present, many heat preservation cabinets on the market are provided with a steam generating device, a heating device, and a steam passage connecting the steam generating cavity of the steam generating device and the heat preservation space. The heating device heats the steam generating device, so that the liquid water located in the steam generating device is converted into water vapor, so as to deliver the steam to the food in the heat preservation space. During the operation of the steam generating device, the water in the steam generating device may evaporate completely, so that the steam generating device may be in a state of dry burning. In this way, the steam generating device may be damaged or the taste of the heat preservation food ma...

AI Technical Summary

Problems solved by technology

However, temperature sensors are installed on the top and bottom of the steam generating device, and the number of parts of the insulation cabinet is large and the cost is high.