Intelligent control method for steam quantity and cavity temperature field of electric steam box

Abstract

The invention discloses an intelligent control method for the steam quantity and the cavity temperature field of an electric steamer. An evaporation heater, an auxiliary heater and a temperature sensor are arranged in the electric steamer. The method comprises the following steps: S1, acquiring the maximum allowable use power of the evaporation heater and the target temperature and the cooking time in the current working mode; S2, starting an evaporation heater and adjusting power by adopting a PID algorithm to obtain average power; S3, operating at the actual use power and adjusting by adopting a PID algorithm, when the operation time reaches the cooking time, ending cooking, and otherwise, executing S4; and S4, judging whether the current temperature in the cavity reaches the target temperature or not, if so, returning to execute S3, otherwise, starting the auxiliary heater, adjusting and correcting the actual use power of the evaporation heater by adopting a PID algorithm, and returning to execute S3. According to the method, accurate control over the steam amount and the temperature field is considered, the water utilization rate is increased, overflow and dry burning are avoided, the experience feeling is good, the development period is short, cost is low, and universality is good.

Description

technical field [0001] The invention belongs to the technical field of kitchen appliances, and in particular relates to an intelligent control method for steam volume and cavity temperature field of an electric steamer. Background technique [0002] With the continuous improvement of people's requirements for dietary health and convenience, kitchen appliances with electric steaming functions have been rapidly promoted. For kitchen appliances with electric steaming function, in order to achieve the ideal cooking effect, in the final analysis it is the control of the steam volume, cavity temperature field and cooking time, that is, the three elements of recipe development. For a recipe, the amount of steam, the level of temperature, and the setting of cooking time are often the chef’s experience values, which have high requirements for users, and the scope of applicable people is limited, so it is difficult to apply to the public and obtain a better experience. For example, t...

AI Technical Summary

Problems solved by technology

There are existing solutions to control the amount of steam. One is to control the amount of steam by controlling the amount of water inflow. In fact, the amount of steam does not necessarily follow the amount of water. On the premise of sufficient water, the amount of steam depends on the heat given by the heater. ; The other is to monitor the current water level of the evaporator of the electric steamer, which needs to be equipped with a corresponding water level sensor, which increases the cost and lowers the control accuracy

At the same time, the existing scheme does not take into account the control of steam volume and temperature field at the same time, so it is difficult to ensure that the food has a better taste

Images