A method for judging the moisture content of tea leaves during the greening process of a low-pressure dehumidification machine
A technology of fixing machine and moisture content, which is applied in tea processing before extraction, analytical materials, instruments, etc., can solve the problem of difficult detection of moisture content, and achieve the effect of reducing energy consumption, energy consumption, and temperature demand.
Active Publication Date: 2022-05-13
ZHEJIANG UNIV OF TECH
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Problems solved by technology
[0007] The purpose of the present invention is to solve the above-mentioned problem that the moisture content of tea leaves is difficult to detect during the low-pressure dehumidification process. consumption, and can use the pressure and the moisture content in the extracted air to detect the humidity of the tea during the low-pressure dehumidification process
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Embodiment Construction
[0056] The present invention will be further described below in conjunction with accompanying drawing:
[0057] Such as Figure 1-8 As shown, a low-pressure greening machine for measuring humidity by a second-order method includes a low-pressure greening machine, an air gauge 7, a first air pump and a low-pressure air extraction pipe 8, and the air gauge 7 is connected to the low-pressure greening machine and detects the inside of the low-pressure greening machine One end of the low-pressure exhaust pipe 8 is connected to the inside of the low-pressure deactivation machine, and the other end of the low-pressure exhaust pipe 8 is connected to the gas inlet of the condenser 30 through the shut-off valve 29, and the hygrometer is arranged at the outlet of the other end of the low-pressure exhaust pipe 8.
[0058] The low-pressure cleaning machine includes an airtight casing 5, a low-pressure dehumidification tank 6, a feed bin 1, a microwave heating device 16, a feed bin 15, a ba...
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The invention discloses a method for judging the moisture content of tea leaves in the greening process of a low-pressure dehumidification and greening machine, which comprises a low-pressure greening machine, a thermometer, a low-pressure air extraction pipe, a shut-off valve, a condenser, a first air extraction pump, a water tank and a liquid level gauge. The thermometer is connected to the low-pressure cleaning machine and detects the temperature inside the low-pressure cleaning machine. One end of the low-pressure suction pipe is connected to the inside of the low-pressure cleaning machine, and the other end of the low-pressure suction pipe is connected to the gas inlet of the condenser through a shut-off valve. The first suction pump is connected to The gas outlet of the condenser, the water outlet of the condenser is set above the water tank, and the side of the water tank is provided with a liquid level gauge for detecting the height of the liquid level in the water tank; the present invention uses a thermodynamic formula, according to a certain moment of low pressure The pressure value P inside the machine and the temperature T inside the low-pressure greening machine and the corresponding graph over time, and then the moisture content of the tea leaves in the low-pressure greening machine can be calculated according to the volume V of the low-pressure greening machine.
Description
technical field [0001] The invention relates to the field of tea greening devices, and more specifically, to a method for judging the moisture content of tea leaves during the greening process of a low-pressure dehumidification machine. Background technique [0002] Green tea is currently the most important type of tea in my country, and occupies a more important position than other varieties in the tea industry. The basic processing technology of green tea is: spreading → finishing → kneading → drying. The first process of green tea primary production is exactly greening, the quality of its effect directly affects the processing of green tea and the formation of its quality. Fixing is a key process in green tea processing. Fixing is to take high temperature measures to emit water in the leaves, inactivate the activity of enzymes, and cause certain chemical changes in the contents of fresh leaves, thereby forming the quality characteristics of green tea. Fixing uses high ...
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IPC IPC(8): G01N7/16A23F3/06
CPCG01N7/16A23F3/06
Inventor 单晓杭章衡张利叶必卿
Owner ZHEJIANG UNIV OF TECH