Tea green-removing machine and fuzzy control method thereof

Abstract

The invention discloses a tea green-removing machine and a fuzzy control method thereof. The method comprises the following steps of: heating a barrel of the tea green-removing machine by using a combustor, wherein T is a given temperature value, a feedback value Tt is the current temperature value of the outer wall of the barrel of the tea green-removing machine, and temperature difference E is equal to Tt-T, and a temperature difference change rate EC is equal to Tt-Tt-1, the first input quantity of a fuzzy controller is Ke*E, and the second input quantity of the fuzzy controller is KC*EC; the output quantity of the fuzzy controller is U, and the input control quantity of the tea green-removing machine is KU*U, and the Ke, KC and KU represent a temperature difference ratio factor, a temperature difference change ratio factor and a control quantity ratio factor respectively; and the input control quantity KU*U is a voltage signal of an electromagnetic valve, namely the voltage signalloaded in an electromagnetic coil in the electromagnetic valve which is used for controlling the flow of the combustible gas in the combustor. The tea green-removing machine and the fuzzy control method thereof have the advantages that: the implementation is easy; the automation degree is high; and the tea green-removing effect is good.

Description

technical field [0001] The invention belongs to the field of automatic control, and relates to a tea degreening machine and a fuzzy control method thereof, which are used for degreening fresh leaves in the primary green tea production stage. Background technique [0002] The greening machine is a machine used to complete the finishing work in the primary processing of tea. Fixing is to take high temperature measures to emit water in the leaves, inactivate the activity of enzymes, prevent enzymatic reactions, and cause certain chemical changes in the contents of fresh leaves, thereby forming the quality characteristics of green tea. Therefore, if the pot temperature is too low and the leaf temperature rises for too long during the greening process, the tea polyphenols will undergo an enzymatic reaction, resulting in "red stalks and red leaves". On the contrary, if the temperature is too high and the chlorophyll is destroyed more, it will cause the leaves to turn yellow, and ...

AI Technical Summary

Problems solved by technology

If the operation is improper, it is easy to produce scorched leaves, which seriously affects the quality of tea.

In addition, the combustion system of the existing de-greening machine generally adopts ordinary combustion fire row, which is not sufficient for gas combustion, and has disadvantages such as large energy consumption and potential safety hazards.

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