A multi-level combined protection steam cabinet and a multi-level combined protection method

Abstract

The invention discloses a multi-level combined protection steaming cabinet, wherein: when the steaming cabinet is powered on, the central controller controls the closing of the second exhaust valve; after the user inputs an instruction through a button module, the central controller executes the instruction and Control the opening or closing of the intake valve and the first exhaust valve to control the heating process of the steamer; when the travel switch is off, it means that the door is open, and the central controller controls the opening of the first exhaust valve; when the travel switch is closed , indicating that the door is closed, and the central controller controls the heating process of the steamer by controlling the on-off of the intake valve and the first exhaust valve. The above-mentioned multi-level joint protection steam cabinet forms a combination of active and passive, normal and abnormal, mechanical and electronic through the joint action of the button module, the first exhaust valve, the second exhaust valve, the travel switch and the handle-type door lock. The multi-level joint protection method achieves better safety and more flexible pressure regulation, effectively ensuring the safety of the steamer.

Description

technical field [0001] The invention relates to a steaming cabinet, in particular to a multi-level combined protection steaming cabinet and a multi-level combined protection method. Background technique [0002] In the catering industry, steaming cabinets are widely used, and the energy-saving effect of airtight steaming cabinets is good. The steaming cabinets use micro-pressure to properly increase the steam temperature, and the steamed food is delicious. The micro pressure of the steamer is usually about 15KP, but for areas with higher altitudes, such as plateaus, if the ideal effect is to be achieved, the internal pressure of the steamer must reach 40Kpa or above. At this time, safety protection during work must be considered, and at the same time Consider the convenience of users and the protection under abnormal conditions. [0003] For the structure of the existing steam cabinet, please refer to the description of the invention patent application with the application ...

AI Technical Summary

Problems solved by technology

The traditional micro-pressure steam cabinet uses a mechanical safety valve as an abnormal protection, but it can only work when the internal pressure exceeds the safe range. In normal use, for example, when the user opens and closes the door, the protection cannot be achieved.

The intelligent steamer keeps the pressure in the steamer in a safe range by adding a steamer pressure sensor. When the user forces the door to be opened, it cannot achieve the protection function. If a mechanical lock is added, the convenience of use will be greatly reduced. In addition, the use of electronic How to achieve safety protection in the case of abnormal power failure with sensors and software control has always been a big problem

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